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#1
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Is a single torsion spring garage door supposed to have a centerbearing?
Disassembling my first torsion spring setup, on my 8'wide by 7'tall
garage door, I just found something unexpected. My single-spring 7'wide garage door doesn't have a center bearing. http://www3.picturepush.com/photo/a/...g/11428496.jpg Is that normal not to have a center bearing? http://www4.picturepush.com/photo/a/...g/11428497.jpg I have a bearing on each end, but no center bearing? http://www3.picturepush.com/photo/a/...g/11428516.jpg The reason I ask is that the center, when hand spun, with no weight on it other than the loose spring, has about a 1/4 inch sag in the center. http://www5.picturepush.com/photo/a/...g/11428533.jpg Seems to me, I was expecting a center bearing. Can it be that single-spring torsion systems don't have center bearings? |
#2
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Is a single torsion spring garage door supposed to have acenterbearing?
"Danny D." wrote:
Seems to me, I was expecting a center bearing. My 16-ft garage door has a center bearing (and two springs - one on each side of the center bearing). For an 8-ft wide door, I wouldn't expect a center bearing. |
#3
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Is a single torsion spring garage door supposed to have acenterbearing?
On Sat, 17 Nov 2012 15:38:45 -0500, Home Guy wrote:
For an 8-ft wide door, I wouldn't expect a center bearing. I think you're right because, digging up all I could, I found this: http://ddmgaragedoors.com/diy-instru...eplacement.php Where it says: "Some garage doors are installed without bearings. If you have no bearing in your spring anchor bracket, grease the shaft where it will be rubbing inside the cones." So, I'm moving forward in the other thread on winding the torsion spring for the first time ever in my life! |
#4
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Is a single torsion spring garage door supposed to have a center bearing?
On Sat, 17 Nov 2012 19:17:25 +0000 (UTC), "Danny D."
wrote: Disassembling my first torsion spring setup, on my 8'wide by 7'tall garage door, I just found something unexpected. My single-spring 7'wide garage door doesn't have a center bearing. http://www3.picturepush.com/photo/a/...g/11428496.jpg Is that normal not to have a center bearing? http://www4.picturepush.com/photo/a/...g/11428497.jpg I have a bearing on each end, but no center bearing? http://www3.picturepush.com/photo/a/...g/11428516.jpg The reason I ask is that the center, when hand spun, with no weight on it other than the loose spring, has about a 1/4 inch sag in the center. http://www5.picturepush.com/photo/a/...g/11428533.jpg Seems to me, I was expecting a center bearing. Can it be that single-spring torsion systems don't have center bearings? I looked at my doors. Wayne Dalton is a double door. The single door is a Martin door* (the best door on the market IMO). Neither have a bearing in the center. Instead, they both have a hard plastic bushing to keep the shaft centered in the bracket mount. Is the sag caused by having everything disconnected or did it sag before you started working on the springs? (* The Martin door single spring is not in the center of the door, but is mounted on the left side next to the track.) |
#5
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sat, 17 Nov 2012 12:57:35 -0800, Oren wrote:
I looked at my doors. Wayne Dalton is a double door. Thanks for taking the time to look & write. You're a saint. Neither have a bearing in the center. Instead, they both have a hard plastic bushing to keep the shaft centered in the bracket mount. Oh oh. I had called up Dan Musick today (800-383-9548) and I told him there was no 'bearing' (but I didn't mention a 'bushing'). He said he's seen 'more' problems from a middle bearing going askew than not having a bearing at all - but now I realize I didn't clarify that I have neither a bearing nor a bushing. I think it matters because the 9 foot bar actually MOVES! Yes. Apparently, from my observation anyway - the overdoor bar slides to the right (standing in the center of the garage and looking at a single right wound spring on the left side of center) about an inch as the door goes up (and back to the left as the door goes down). Here is Dan's torsion spring replacement DIY for a single spring single- spring where he actually mentions the nylon bushing (not the bearing) in step #15: http://ddmgaragedoors.com/diy-instru...eplacement.php Is the sag caused by having everything disconnected or did it sag before you started working on the springs? Hmmm... I wish I had known enough to look before the spring broke! Especially when you see these two pictures: DOOR CLOSED: http://www5.picturepush.com/photo/a/...g/11430038.jpg DOOR OPEN: http://www1.picturepush.com/photo/a/...g/11430039.jpg Notice the 9 foot bar seems to be sliding an inch to the right when the door opens (and the bracket is pulled left); and then the 9 foot long bar is slid an inch back to the left (and the bracket centers itself). I think, over time, this will break the bracket. No? Do anyone see the same thing with your single-torsion spring door, right hand wound, mounted to the left of center? http://www1.picturepush.com/photo/a/...g/11430064.jpg |
#6
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Is a single torsion spring garage door supposed to have a center bearing?
On Sat, 17 Nov 2012 22:42:56 +0000 (UTC), "Danny D."
wrote: On Sat, 17 Nov 2012 12:57:35 -0800, Oren wrote: I looked at my doors. Wayne Dalton is a double door. Thanks for taking the time to look & write. You're a saint. Neither have a bearing in the center. Instead, they both have a hard plastic bushing to keep the shaft centered in the bracket mount. Oh oh. I had called up Dan Musick today (800-383-9548) and I told him there was no 'bearing' (but I didn't mention a 'bushing'). He said he's seen 'more' problems from a middle bearing going askew than not having a bearing at all - but now I realize I didn't clarify that I have neither a bearing nor a bushing. I think it matters because the 9 foot bar actually MOVES! Yes. Apparently, from my observation anyway - the overdoor bar slides to the right (standing in the center of the garage and looking at a single right wound spring on the left side of center) about an inch as the door goes up (and back to the left as the door goes down). Here is Dan's torsion spring replacement DIY for a single spring single- spring where he actually mentions the nylon bushing (not the bearing) in step #15: http://ddmgaragedoors.com/diy-instru...eplacement.php Is the sag caused by having everything disconnected or did it sag before you started working on the springs? Hmmm... I wish I had known enough to look before the spring broke! Especially when you see these two pictures: DOOR CLOSED: http://www5.picturepush.com/photo/a/...g/11430038.jpg DOOR OPEN: http://www1.picturepush.com/photo/a/...g/11430039.jpg Notice the 9 foot bar seems to be sliding an inch to the right when the door opens (and the bracket is pulled left); and then the 9 foot long bar is slid an inch back to the left (and the bracket centers itself). I think, over time, this will break the bracket. No? Do anyone see the same thing with your single-torsion spring door, right hand wound, mounted to the left of center? http://www1.picturepush.com/photo/a/...g/11430064.jpg Send the OPEN / CLOSE photos to Dan and ask if the spring you used is to big / long for the door. The center bracket should not be flexing like that. I do think the bracket will break in due time, in some fashion. You added 10.5 inch of spring length and it may be to much torque. |
#7
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sat, 17 Nov 2012 15:25:29 -0800, Oren wrote:
Send the OPEN / CLOSE photos to Dan and ask if the spring you used is to big / long for the door. The center bracket should not be flexing like that. I do think the bracket will break in due time, in some fashion. You added 10.5 inch of spring length and it may be to much torque. It also worries me how much it the bracket is flexing. Upon closer inspection, there is only a SINGLE BOLT holding that plate against the wall! Look at this picture (with the door closed): http://www1.picturepush.com/photo/a/...g/11430589.jpg Believe it or not, they have three BOLTS (not screws) holding the angle iron in place - which means those three bolts holding the angle iron in place were put in (from the outside) when the garage was built. The weird thing is only ONE of those three bolts actually (also) holds the bracket in place. So the bracket is free to move more than I think it should be. Guessing: It looks like they have some holes that are unused - probably because they only went into sheetrock - with nothing below - which is why it only has one bolt holding the bracket perhaps. More data: I just screwed a long wood screw into two of the bracket holes and they both had ONLY gypsum board behind them. So that's why they didn't bolt the bracket with two bolts - but now I need to re-engineer how that bracket is held in place. Note: I can see why garage door companies don't want to upgrade springs but this problem 'might' not even be due to the upgraded spring. |
#8
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Is a single torsion spring garage door supposed to have a center bearing?
On Sun, 18 Nov 2012 00:14:02 +0000 (UTC), "Danny D."
wrote: On Sat, 17 Nov 2012 15:25:29 -0800, Oren wrote: Send the OPEN / CLOSE photos to Dan and ask if the spring you used is to big / long for the door. The center bracket should not be flexing like that. I do think the bracket will break in due time, in some fashion. You added 10.5 inch of spring length and it may be to much torque. It also worries me how much it the bracket is flexing. Upon closer inspection, there is only a SINGLE BOLT holding that plate against the wall! Look at this picture (with the door closed): http://www1.picturepush.com/photo/a/...g/11430589.jpg Believe it or not, they have three BOLTS (not screws) holding the angle iron in place - which means those three bolts holding the angle iron in place were put in (from the outside) when the garage was built. The weird thing is only ONE of those three bolts actually (also) holds the bracket in place. So the bracket is free to move more than I think it should be. Guessing: It looks like they have some holes that are unused - probably because they only went into sheetrock - with nothing below - which is why it only has one bolt holding the bracket perhaps. More data: I just screwed a long wood screw into two of the bracket holes and they both had ONLY gypsum board behind them. So that's why they didn't bolt the bracket with two bolts - but now I need to re-engineer how that bracket is held in place. Note: I can see why garage door companies don't want to upgrade springs but this problem 'might' not even be due to the upgraded spring. Use a hammer and nail to see if the is a wood piece behind the angle iron vertical and left or right of the metal. My door does not use the angle iron. The bracket is bolted (threaded) into vertical wood framing. I'm not sure why the center bracket is right of center on the door. You might measure and see if the is wood behind the sheetrock can be located at the center - if so move that bracket over an remount it (guessing here). Another thought is that if you back the spring off some it may fix the flexing problem on the bracket. |
#9
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Is a single torsion spring garage door supposed to have a center bearing?
On Sun, 18 Nov 2012 00:14:02 +0000 (UTC), "Danny D."
wrote: On Sat, 17 Nov 2012 15:25:29 -0800, Oren wrote: Send the OPEN / CLOSE photos to Dan and ask if the spring you used is to big / long for the door. The center bracket should not be flexing like that. I do think the bracket will break in due time, in some fashion. You added 10.5 inch of spring length and it may be to much torque. It also worries me how much it the bracket is flexing. Sure looks wrong to me. I don't fully understand the forces involved, but I do know bending a bracket back and forth isn't good. Mine have always been double spring with a center bracket/bearing. So the 2 springs cancel each others' attempt at lateral torsion shaft movement. And that would also mean the springs can't change in actual length, since they are locked at both ends and the shaft doesn't move. Guess that's why there's "spring engineers." Maybe. |
#10
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Is a single torsion spring garage door supposed to have a center bearing?
On Sat, 17 Nov 2012 22:42:56 +0000 (UTC), "Danny D."
wrote: On Sat, 17 Nov 2012 12:57:35 -0800, Oren wrote: I looked at my doors. Wayne Dalton is a double door. Thanks for taking the time to look & write. You're a saint. Neither have a bearing in the center. Instead, they both have a hard plastic bushing to keep the shaft centered in the bracket mount. Oh oh. I had called up Dan Musick today (800-383-9548) and I told him there was no 'bearing' (but I didn't mention a 'bushing'). He said he's seen 'more' problems from a middle bearing going askew than not having a bearing at all - but now I realize I didn't clarify that I have neither a bearing nor a bushing. I think it matters because the 9 foot bar actually MOVES! Yes. Apparently, from my observation anyway - the overdoor bar slides to the right (standing in the center of the garage and looking at a single right wound spring on the left side of center) about an inch as the door goes up (and back to the left as the door goes down). Here is Dan's torsion spring replacement DIY for a single spring single- spring where he actually mentions the nylon bushing (not the bearing) in step #15: http://ddmgaragedoors.com/diy-instru...eplacement.php Is the sag caused by having everything disconnected or did it sag before you started working on the springs? Hmmm... I wish I had known enough to look before the spring broke! Especially when you see these two pictures: DOOR CLOSED: http://www5.picturepush.com/photo/a/...g/11430038.jpg DOOR OPEN: http://www1.picturepush.com/photo/a/...g/11430039.jpg Notice the 9 foot bar seems to be sliding an inch to the right when the door opens (and the bracket is pulled left); and then the 9 foot long bar is slid an inch back to the left (and the bracket centers itself). I think, over time, this will break the bracket. No? Do anyone see the same thing with your single-torsion spring door, right hand wound, mounted to the left of center? http://www1.picturepush.com/photo/a/...g/11430064.jpg I just looked at my 7 foot door. It has a center bearing. IMHO they should all have a center bearing, or at least a bushing. The bearing combined with the rod prevents the bending you are seeing on your flimsy metal center spring base support bracket. Your spring seems too long to me for a 7 foot door. However, a longer spring means more coils, which means for the same amount of rotation the spring "winds up" less, as a proportion of it's total windup capacity. I'm guessing that the spring you have is for a taller (not wider) door which naturally needs to wind the spring more as the taller door moves thru it full up-down range. My double door simply has two springs that each appear to be0 the same size as the one spring on my single door. I think you are fooling yourself by thinking that the "bigger" (i.e. longer) spring is providing you with extra "power". It may or may not be since power is a function of materials, diameter (of the wire as well as the spring), number of coils, amount of twist, and probably some other stuff. |
#11
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sat, 17 Nov 2012 16:56:04 -0800, Oren wrote:
Another thought is that if you back the spring off some it may fix the flexing problem on the bracket. Hi Oren, Thanks for the ideas. The flexing bracket is a weird problem - which might have been there all along - or - as you intimate - it may have been exacerbated by the thicker longer heavier spring. I'm gonna send some photos to Dan to ask what he'd do. As you noted, I can de-tension the spring another quarter turn. Or, I can simply squish the spring a quarter inch or so. In fact, following instructions, I had moved the spring OUT (to the left) about 1/4 inch initially AFTER it was wound (as per instructions) - so maybe - just maybe - I moved it out to the left too far. I will try to squish that spring to see if 'that' minimizes the bending of the poorly mounted bracket. Note: I pounded with a hammer and do not see any wood below the bracket. That's weird that they picked such a lousy spot. |
#12
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Is a single torsion spring garage door supposed to have a center bearing?
On Sun, 18 Nov 2012 02:39:38 +0000 (UTC), "Danny D."
wrote: On Sat, 17 Nov 2012 16:56:04 -0800, Oren wrote: Another thought is that if you back the spring off some it may fix the flexing problem on the bracket. Hi Oren, Thanks for the ideas. The flexing bracket is a weird problem - which might have been there all along - or - as you intimate - it may have been exacerbated by the thicker longer heavier spring. I'm gonna send some photos to Dan to ask what he'd do. As you noted, I can de-tension the spring another quarter turn. Or, I can simply squish the spring a quarter inch or so. In fact, following instructions, I had moved the spring OUT (to the left) about 1/4 inch initially AFTER it was wound (as per instructions) - so maybe - just maybe - I moved it out to the left too far. I will try to squish that spring to see if 'that' minimizes the bending of the poorly mounted bracket. Note: I pounded with a hammer and do not see any wood below the bracket. That's weird that they picked such a lousy spot. Hope Dan can explain the flexing. An option might be to remove the center bracket, cut the sheetrock out neatly and mount a wood piece of 2x6 (?) to the wall (concrete header) with epoxy or lags and then bolt into the wood. |
#13
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Is a single torsion spring garage door supposed to have a center bearing?
"Danny D." wrote:
Disassembling my first torsion spring setup, on my 8'wide by 7'tall garage door, I just found something unexpected. My single-spring 7'wide garage door doesn't have a center bearing. http://www3.picturepush.com/photo/a/...g/11428496.jpg Is that normal not to have a center bearing? http://www4.picturepush.com/photo/a/...g/11428497.jpg I have a bearing on each end, but no center bearing? http://www3.picturepush.com/photo/a/...g/11428516.jpg The reason I ask is that the center, when hand spun, with no weight on it other than the loose spring, has about a 1/4 inch sag in the center. http://www5.picturepush.com/photo/a/...g/11428533.jpg Seems to me, I was expecting a center bearing. Can it be that single-spring torsion systems don't have center bearings? Here's my single door's center bracket. As far as I know the door is original to the house, so it's about 57 years old. The torsion spring was replaced something like 10 years ago, but not by me. To be honest, I don't know if that's a bearing or a bushing, but the bar is definitely supported in the center bracket by whatever that is. The bracket is mounted with 2 lag bolts, one into the header and the other into the cripple stud. It does not move at all as the door goes up and down.. Bearing or Bushing: http://i440.photobucket.com/albums/q...3209104153.jpg Bracket Mounting: http://i440.photobucket.com/albums/q...3209023586.jpg |
#14
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sat, 17 Nov 2012 19:05:46 -0800, Oren wrote:
An option might be to remove the center bracket, cut the sheetrock out neatly and mount a wood piece of 2x6 (?) to the wall (concrete header) with epoxy or lags and then bolt into the wood. Now that I know it doesn't matter WHERE the bracket is mounted, I guess I could move the angle iron to ANY location where there is an existing stud. I looked at my other two garage doors - and neither has this problem. |
#15
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sat, 17 Nov 2012 19:20:39 -0600, Vic Smith wrote:
Mine have always been double spring with a center bracket/bearing. the 2 springs cancel each others' attempt at lateral torsion shaft I don't disagree. Had I known about this bracket flimsiness ahead of time, I would have simply replaced my one spring with two springs. It's easy to figure out what springs to use for that purpose. The DDM Door site conveniently has this tutorial: How to Convert from One Garage Door Spring to Two http://ddmgaragedoors.com/diy-instru...conversion.php It says that, as the garage door opens, the spring loses 7 coils of length - so that must be what is twisting the bracket inward. What is supposed to happen is that the shaft is supposed to pull through the stationary bracket - but in my case, the bracket is moving inward - instead of the shaft (apparently). The explanation says if I had a second spring, it would cancel out the forces. In addition, it says it's a bit safer. And, the winding of any one of the two springs takes half the force. Using this spring calculator, I can convert to two springs: http://ddmgaragedoors.com/springs/st...on-springs.php OLD: 2"IDx0.234"x26.5" RH ($36.58, 13,000 duty cycle) NEW: 2"IDx0.187"x17.75" RH & LH ($21.08 each, 17,000 duty cycle) NEW: 2"IDx0.187"x17.5" RH & LH ($20.84 each, 16,000 duty cycle) NEW: 2"IDx0.192"x19.75" RH & LH ($23.50 each, 23,000 duty cycle) NEW: 2"IDx0.207"x28.25" RH & LH ($34.29 each, 63,000 duty cycle) NEW: 2"IDx0.218"x36.75" RH & LH ($45.88 each, 141,000 duty cycle) |
#16
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sat, 17 Nov 2012 18:39:13 -0700, Ashton Crusher wrote:
I just looked at my 7 foot door. It has a center bearing. IMHO they should all have a center bearing, or at least a bushing. I don't disagree. Thanks for looking. I appreciate that since I only have my doors to go by. I may end up putting either a nylon bushing in there, or better yet, a steel bearing. I think the original installer cheaped out, saving himself a couple of bucks - but the homeowner loses. The bearing combined with the rod prevents the bending I think it would prevent the 'sagging' of the one-inch hollow rod that goes across the door. I don't know if the bearing would prevent the bracket from bending 7 coils inward when the door is open - simply because the bracket is supposed to be stationary. Your spring seems too long to me for a 7 foot door. It's calculated However, a longer spring means more coils I didn't count the coils - but the new spring is thicker gauge wire - so - any one coil is thicker. The reason for the thicker gauge wire is merely for duty cycles. Since the wire is thicker, to lift the same door, the spring will be either longer, or a larger ID. Since I kept the ID at 2", the spring has to be longer to lift the same door. I think you are fooling yourself by thinking that the "bigger" (i.e. longer) spring is providing you with extra "power". You're absolutely right. I would be fooling myself if I thought that. The 'only' reason for the longer spring is I opted for a thicker gauge (0.250" rather than 0.243"). The only way you can get the same force with the thicker gauge wire is to either opt for a larger ID or for a longer spring. I opted for the longer spring. But it should have the same force as the shorter spring with the thinner gauge. It should only have a longer duty cycle (by far). Of course, it's ironic if this longer-duty cycle spring tears the mounting plate off the wall. Certainly, I need to find a solution. For the next person who replaces their garage door spring, I suggest looking first BEFORE it breaks, to see how it's working. |
#17
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sun, 18 Nov 2012 03:36:17 +0000, DerbyDad03 wrote:
Here's my single door's center bracket. As far as I know the door is original to the house, so it's about 57 years old. The torsion spring was replaced something like 10 years ago, but not by me. Wow. I envy how STURDY your spring mounting is (compared to mine!). Your first picture showed a nicely installed bearing. And your second picture shows a sturdily bolted plate. I don't know if that's a bearing or a bushing It's a bearing. A bushing is (apparently) simply a piece of nylon. It does not move at all as the door goes up and down. Thanks for the update. I envy you. And learn from you! |
#18
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Is a single torsion spring garage door supposed to have a centerbearing?
On 11/17/2012 1:17 PM, Danny D. wrote:
Disassembling my first torsion spring setup, on my 8'wide by 7'tall garage door, I just found something unexpected. My single-spring 7'wide garage door doesn't have a center bearing. http://www3.picturepush.com/photo/a/...g/11428496.jpg Is that normal not to have a center bearing? http://www4.picturepush.com/photo/a/...g/11428497.jpg I have a bearing on each end, but no center bearing? http://www3.picturepush.com/photo/a/...g/11428516.jpg The reason I ask is that the center, when hand spun, with no weight on it other than the loose spring, has about a 1/4 inch sag in the center. http://www5.picturepush.com/photo/a/...g/11428533.jpg Seems to me, I was expecting a center bearing. Can it be that single-spring torsion systems don't have center bearings? there would be no need for one in a 7 or 8 foot span. -- Steve Barker remove the "not" from my address to email |
#19
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sun, 18 Nov 2012 09:44:26 -0600, Steve Barker wrote:
there would be no need for one in a 7 or 8 foot span. I'm going to see what Dan Musick thinks - I hope he responds to my email on Monday. I see three options at the moment: a) Shore up the bracket (somehow) to that it doesn't move b) Add a nylon bushing or steel bearing & see if that helps c) Convert the one spring to a two-spring system |
#20
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Is a single torsion spring garage door supposed to have a center bearing?
On Sun, 18 Nov 2012 03:36:17 +0000 (UTC), DerbyDad03
wrote: Can it be that single-spring torsion systems don't have center bearings? Here's my single door's center bracket. As far as I know the door is original to the house, so it's about 57 years old. The torsion spring was replaced something like 10 years ago, but not by me. To be honest, I don't know if that's a bearing or a bushing, but the bar is definitely supported in the center bracket by whatever that is. The bracket is mounted with 2 lag bolts, one into the header and the other into the cripple stud. It does not move at all as the door goes up and down.. Bearing or Bushing: http://i440.photobucket.com/albums/q...3209104153.jpg Bracket Mounting: http://i440.photobucket.com/albums/q...3209023586.jpg Likely a bearing. Touch a magnet to it. A nylon bushing, in my case, is black. |
#21
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Is a single torsion spring garage door supposed to have a center bearing?
On Sun, 18 Nov 2012 04:48:51 +0000 (UTC), "Danny D."
wrote: On Sat, 17 Nov 2012 19:05:46 -0800, Oren wrote: An option might be to remove the center bracket, cut the sheetrock out neatly and mount a wood piece of 2x6 (?) to the wall (concrete header) with epoxy or lags and then bolt into the wood. Now that I know it doesn't matter WHERE the bracket is mounted, I guess I could move the angle iron to ANY location where there is an existing stud. I looked at my other two garage doors - and neither has this problem. See my single and double doors: http://tinypic.com/r/21m4syf/6 Vertical (cripple stud?) 2X6 lumber. Why I mentioned cutting the sheetrock out... 14 year old Wayne Dalton double door. Opener added eight years ago. http://tinypic.com/r/70upf9/6 Martin single door replaced a couple years ago. NOTE the spring is next to the drum as I mentioned earlier in the thread. Same case with 2X6 lumber. Even the tracks have wood for bolting the metal. Both doors have nylon bushings in center bracket. http://tinypic.com/r/2nk0zk0/6 Why I love the Martin door brand (can be installed by company certified installers) HD and Lowe's may carry them in your area. The roller wheels are nylon, thus cutting down on noise of metal to metal. See the 4" vertical support for the track. |
#22
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Is a single torsion spring garage door supposed to have a center bearing?
On Sun, 18 Nov 2012 05:18:50 +0000 (UTC), "Danny D."
wrote: The bearing combined with the rod prevents the bending I think it would prevent the 'sagging' of the one-inch hollow rod that goes across the door. I don't know if the bearing would prevent the bracket from bending 7 coils inward when the door is open - simply because the bracket is supposed to be stationary. I forgot to snap a photo (Wayne Dalton door). The bracket uses a nylon bushing. When the door is closed, there is a slight arch / radius on the shaft downward. Slight, but you have to really look to notice. A bushing / bearing is necessary to keep the shaft from serious movement in the slotted bracket. |
#23
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Is a single torsion spring garage door supposed to have a center bearing?
On Sun, 18 Nov 2012 17:56:12 +0000 (UTC), "Danny D."
wrote: On Sun, 18 Nov 2012 09:44:26 -0600, Steve Barker wrote: there would be no need for one in a 7 or 8 foot span. I'm going to see what Dan Musick thinks - I hope he responds to my email on Monday. I see three options at the moment: a) Shore up the bracket (somehow) to that it doesn't move First step b) Add a nylon bushing or steel bearing & see if that helps Second step c) Convert the one spring to a two-spring system Wait until next time. Have a beverage instead. |
#24
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Is a single torsion spring garage door supposed to have a center bearing?
"Danny D." wrote:
On Sun, 18 Nov 2012 03:36:17 +0000, DerbyDad03 wrote: Here's my single door's center bracket. As far as I know the door is original to the house, so it's about 57 years old. The torsion spring was replaced something like 10 years ago, but not by me. Wow. I envy how STURDY your spring mounting is (compared to mine!). Your first picture showed a nicely installed bearing. And your second picture shows a sturdily bolted plate. I don't know if that's a bearing or a bushing It's a bearing. A bushing is (apparently) simply a piece of nylon. It does not move at all as the door goes up and down. Thanks for the update. I envy you. And learn from you! There's a family owned garage door company in my area. I've had 2 problems with my garage door in the last ten years. One was a busted torsion spring, the other I don't remember what it was...I think it was a cable. Both times i called them, left them a key to the side door of the garage and when I got home from work, the problem was solved for a reasonable price. You can see the quality of work that they do, so it was money well spent. I still see their trucks on the road and have recommended them to a number of my friends and co-workers. |
#25
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sun, 18 Nov 2012 12:30:33 -0800, Oren wrote:
See my single and double doors: http://tinypic.com/r/21m4syf/6 Hi Oren, I see that 2x6 vertical stud - which I envy - as mine is just in gypsum board. That picture gives me an idea to copy - except I'm a bit worried about the extra 2 inches, having never installed a garage door opener before. Why I mentioned cutting the sheetrock out... http://tinypic.com/r/70upf9/6 Interesting. You have that "cripple stud" on the rollers too. If I cut the sheetrock out, I might gain the 2 inches that I lose. Both doors have nylon bushings in center bracket. http://tinypic.com/r/2nk0zk0/6 The roller in that picture looks bigger than the track! See the 4" vertical support for the track. Very sturdy. I don't have that. Mine just have the track brackets but not that nice steel vertical support. I envy your setup! |
#26
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sun, 18 Nov 2012 12:43:02 -0800, Oren wrote:
When the door is closed, there is a slight arch/radius on the shaft downward. Slight... Mine seems more than slight. Seems to me mine NEEDS a bushing. I called today to Home Depot & Lowes but they didn't even know what I was talking about. A bushing / bearing is necessary to keep the shaft from serious movement in the slotted bracket. I think it also might prevent the shaft from 'catching' on the bracket. Maybe if the shaft SLID sidewise (in a bushing) better, it wouldn't be bending the bracket? I will buy the 1" ID (2"OD) nylon bushing as soon as I can find a local supplier. I might have to visit a garage door company on Monday. |
#27
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sun, 18 Nov 2012 12:51:47 -0800, Oren wrote:
a) Shore up the bracket (somehow) to that it doesn't move First step b) Add a nylon bushing or steel bearing & see if that helps Second step c) Convert the one spring to a two-spring system Wait until next time. Have a beverage instead. Thanks for the advice of the priorities. One thing I tried today was MEASURING how much the spring grew to the left when I installed it. So I unwound it - and measured the growth to be 2 1/4 inches: http://www2.picturepush.com/photo/a/...g/11439810.jpg One 'complication' is that I do NOT understand WHY the Dan Musick instructions say to add an extra 1/4 inch to the normal growth of the spring AFTER it has been wound the extra 7 turns. I 'think' I might have pushed the spring out MORE than 1/4 inch when following those directions (although I don't understand them). QUESTION: Do you know why Dan suggests adding the extra 1/4 inch? Here are Dan's instructions: http://ddmgaragedoors.com/diy-instru...eplacement.php Notice step #72 (actually #70 to #73). I don't understand why we need to "GROW" the spring any more than it grows on its own (and I wonder if I grew it too much)??? |
#28
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Is a single torsion spring garage door supposed to have a center bearing?
On Sun, 18 Nov 2012 23:59:37 +0000 (UTC), "Danny D."
wrote: Both doors have nylon bushings in center bracket. http://tinypic.com/r/2nk0zk0/6 The roller in that picture looks bigger than the track! The actual nylon roller wheel is inside the track. The big outside one your see, as best as I can guess, is a nylon guide. Maybe preventing side to side movement, thus nylon in instead of metal noise. Almost silent. http://martindoor.com/?utm_source=live&utm_medium=cpc&utm_campaign=Desig n+Online |
#29
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Is a single torsion spring garage door supposed to have a center bearing?
On Sun, 18 Nov 2012 23:59:37 +0000 (UTC), "Danny D."
wrote: On Sun, 18 Nov 2012 12:30:33 -0800, Oren wrote: See my single and double doors: http://tinypic.com/r/21m4syf/6 Hi Oren, I see that 2x6 vertical stud - which I envy - as mine is just in gypsum board. That picture gives me an idea to copy - except I'm a bit worried about the extra 2 inches, having never installed a garage door opener before. Two inches does not matter. The opener (mine) is bolted in the ceiling. It has the same angle iron as on your spring mount - move it back and forth for minor adjustments horizontally. Why I mentioned cutting the sheetrock out... http://tinypic.com/r/70upf9/6 Interesting. You have that "cripple stud" on the rollers too. If I cut the sheetrock out, I might gain the 2 inches that I lose. Get behind the sheetrock and peeky-boo what is there, An easy way is to knock a hammer face sized hole next to the bracket. |
#30
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Is a single torsion spring garage door supposed to have acenter bearing?
On Sun, 18 Nov 2012 17:27:08 -0800, Oren wrote:
Two inches does not matter. OK. Thanks. I haven't looked at the geometry of the opener just yet as I've been concentrating on the spring. It's interesting how much we DON'T know about simple things, until we have to fix 'em. Get behind the sheetrock and peeky-boo what is there BTW, here's what I found when I was snooping around. http://www3.picturepush.com/photo/a/...g/11440621.jpg A nice big fat black widow spider! |
#31
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Is a single torsion spring garage door supposed to have acenter bearing?
On Mon, 19 Nov 2012 00:16:51 +0000, Danny D. wrote:
QUESTION: Do you know why Dan suggests adding the extra 1/4 inch? Here are Dan's instructions: http://ddmgaragedoors.com/diy-instru...eplacement.php Notice step #72 (actually #70 to #73). I just realized I have about an extra inch of leeway by pushing the hollow rod left or right BEFORE I mount the spring. However, I'm a bit confused which way (left or right) would be best to push the rod by that inch before I put the spring on. It's new to me that the rod moves back and forth side to side, and I'm not sure why we move the spring left after it grows, so it's kinda confusing to me which way will put the least side-to-side stress on the bracket. |
#32
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Is a single torsion spring garage door supposed to have a center bearing?
On Mon, 19 Nov 2012 03:10:57 +0000 (UTC), "Danny D."
wrote: BTW, here's what I found when I was snooping around. http://www3.picturepush.com/photo/a/...g/11440621.jpg A nice big fat black widow spider! It must be the year. I've killed several black widows in recent months. Even egg sacks. Found one in the pool leaf basket. I 'kilt 'em all'. I have another one I'm about to stomp. |
#33
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Is a single torsion spring garage door supposed to have acenter bearing?
On Mon, 19 Nov 2012 03:26:18 +0000, Danny D. wrote:
It's new to me that the rod moves back and forth side to side, and I'm not sure why we move the spring left after it grows Upon closer inspection, I think the rod does NOT move! I took my torsion spring off yet again, and moved both cable drums inward a bit and tested it out and it STILL bent the spring end plate when the door opened. Here is a video showing the spring end plate in action: http://www.youtube.com/watch?v=DNAfZP1bMQM And, notice how loose my end bearing plates appear to be: http://www.youtube.com/watch?v=fHKjGDqz9wE Using a hammer and nail, I found there is NO STUD underneath not only the spring end plate mounting bolts, but also no stud underneath the cable drum mounting points above the door! Here is a view of the right side end plate problem: http://www3.picturepush.com/photo/a/...g/11444806.jpg http://www5.picturepush.com/photo/a/...g/11444808.jpg And, here is a view of the left side end plate problem: http://www1.picturepush.com/photo/a/...g/11444809.jpg http://www2.picturepush.com/photo/a/...g/11444810.jpg Methinks this garage door was badly hung - but it lasted for decades - so it should be relatively easy to repair. |
#34
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Is a single torsion spring garage door supposed to have acenter bearing?
I just got off the phone with Dan of DDM Doors (he's a saint!)
who said that the ONLY way that the spring end plate could be moving like that was if the two bearing end plates were allowing it to move. So, he said, I can secure the spring end plate, but that in and of itself would NOT solve my problem: Here is a picture of the spring end plate logistics: http://www5.picturepush.com/photo/a/...g/11445008.jpg I have to secure the bearing end plates: http://www5.picturepush.com/photo/a/...g/11444808.jpg Dan is going to send me some parts for me to do the job right. I'll let you know what happens - but I wish I really better understood what is making the spring end plate move like that! |
#35
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Is a single torsion spring garage door supposed to have a center bearing?
On Mon, 19 Nov 2012 19:07:51 +0000 (UTC), "Danny D."
wrote: Here is a picture of the spring end plate logistics: http://www5.picturepush.com/photo/a/...g/11445008.jpg I'd move the spring mount bracket LEFT, closer to the center of the door. This assumes you have clearance adjacent the left side cable drum. I have to secure the bearing end plates: http://www5.picturepush.com/photo/a/...g/11444808.jpg You still haven't mentioned what is behind the sheetrock. If you did I missed it. Is it a solid concrete header? |
#36
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Is a single torsion spring garage door supposed to have a center bearing?
On Mon, 19 Nov 2012 19:07:51 +0000 (UTC), "Danny D."
wrote: Here is a picture of the spring end plate logistics: http://www5.picturepush.com/photo/a/...g/11445008.jpg I have to secure the bearing end plates: http://www5.picturepush.com/photo/a/...g/11444808.jpg Dan is going to send me some parts for me to do the job right. I'll let you know what happens - but I wish I really better understood what is making the spring end plate move like that! My guess is the metal is flexing at the drum, due to not have studs secured in the spots you show? |
#37
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Is a single torsion spring garage door supposed to have acenter bearing?
On Mon, 19 Nov 2012 12:16:26 -0800, Oren wrote:
I'd move the spring mount bracket LEFT, closer to the center of the door. This assumes you have clearance adjacent the left side cable drum. Hi Oren, See this picture which shows the geometries: http://www4.picturepush.com/photo/a/...g/11446447.jpg I'd agree with you that moving the spring mount bracket LEFT 18" works best because it leaves room to add a second spring (if needed, later). Moving the bracket right 12" doesn't allow for the second spring. However, moving the bracket left only leaves me about 8 inches before the spring hits the cable drum. (Keep in mind my new 0.250" spring is 10 inches longer than the old 0.234" spring.) You still haven't mentioned what is behind the sheetrock. If you did I missed it. Is it a solid concrete header? I wish I knew. As far as I can tell, there is NOTHING behind the sheetrock. I punched fifteen 3-inch long nail holes into the sheetrock and the only thing I ran into was the two studs mentioned above. There is no header. I would have expected a huge beam above the garage door - but I am strongly suspecting there is a steel beam at the ceiling level instead. Look at this picture. Look at the very top right of the pic: http://www4.picturepush.com/photo/a/...g/11446497.jpg Do you see those four huge nuts? I think that's a beam. You guys know better than I how they build these things. But it sure looks like there isn't any wooden header! What do you think those four bolts are way up at the top? |
#38
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Is a single torsion spring garage door supposed to have acenter bearing?
On Mon, 19 Nov 2012 12:25:20 -0800, Oren wrote:
My guess is the metal is flexing at the drum, due to not have studs secured in the spots you show? I can't disagree. I never would have even LOOKED at the end plates had Dan of DDM Garage Doors told me they MUST be flexing. Mind you, he told me they were flexing BEFORE I even knew that they had no bolts below them (because there is no stud below them). He surmised that - because he said there is no way the spring anchor bracket would move like that if the end bearing plates were solidly bolted in. So, he's sending me, gratis, hardware to tie those end bearing plates to the nearest studs. I'm not exactly sure HOW I'm going to do that - but I'll wait for the parts to arrive where I'll figure it out from the pieces. BTW, I don't work for DDM Garage Doors - but - if you're a do it yourselfer - I would heartily recommend Dan. He's wonderful. Don't even look anywhere else. Buy from him! He stands behind you, hook, line, and sinker! |
#39
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Is a single torsion spring garage door supposed to have a center bearing?
On Mon, 19 Nov 2012 22:28:29 +0000 (UTC), "Danny D."
wrote: Look at this picture. Look at the very top right of the pic: http://www4.picturepush.com/photo/a/...g/11446497.jpg Do you see those four huge nuts? I think that's a beam. You guys know better than I how they build these things. But it sure looks like there isn't any wooden header! What do you think those four bolts are way up at the top? Could be metal header. Drive a nail left, right and below the nuts. Try an figure the direction the metal travels. I'll hazard a guess it will be the header over the garage. |
#40
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Is a single torsion spring garage door supposed to have a center bearing?
On Tue, 20 Nov 2012 01:19:14 +0000 (UTC), DerbyDad03
wrote: If there is no header, what are all of those drywall mud splotches covering? They sure look like nail or screw heads to me. They cover up where the wallboard is fastened to the studs, that the OP needs to anchor parts of his door? Easy way to find the studs if you won't RIP off the sheetrock for a start. |
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