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| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
Posted to rec.crafts.metalworking
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bearing woes
I just got the AC running so I could use the tractor mowing sudan
grass. We want to leave on vacation Sunday. So, of course, a bearing went out in the stalk chopper. I call it a tilt out bearing. There's two openings in the holding flange. Tilt or rotate the bearing 90 degrees and it snaps out. With only minutes till Mcmaster closed, I ordered this entire unit: http://www.mcmaster.com/#2773t6/=ddmbco The mounting pillow block is all wrong. I couldn't find just the bearing for the life of me. Do you think the above unit has a tilt out bearing in it? Or, do I need to run 60 miles to a bearing house in the morning? What is the correct name for these bearings? Karl |
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#2
Posted to rec.crafts.metalworking
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bearing woes
On Thu, 28 Jul 2011 18:04:37 -0500, Karl Townsend
wrote: I just got the AC running so I could use the tractor mowing sudan grass. We want to leave on vacation Sunday. So, of course, a bearing went out in the stalk chopper. I call it a tilt out bearing. There's two openings in the holding flange. Tilt or rotate the bearing 90 degrees and it snaps out. With only minutes till Mcmaster closed, I ordered this entire unit: http://www.mcmaster.com/#2773t6/=ddmbco The mounting pillow block is all wrong. I couldn't find just the bearing for the life of me. Do you think the above unit has a tilt out bearing in it? Or, do I need to run 60 miles to a bearing house in the morning? What is the correct name for these bearings? Karl It has a removable bearing insert with a spherical OD, if that's what you mean by "tilt out." The question is whether it matches yours. The overall dimensions will vary depending on the bearing's load capacity. If you pull the insert you can compare the dimensions to McM's downloadable models. If the 2D drawings are not clear, and you can't view the 3D models, let me know and I'll get the dims for you. -- Ned Simmons |
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#3
Posted to rec.crafts.metalworking
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bearing woes
On Thu, 28 Jul 2011 20:30:44 -0400, Ned Simmons
wrote: On Thu, 28 Jul 2011 18:04:37 -0500, Karl Townsend wrote: I just got the AC running so I could use the tractor mowing sudan grass. We want to leave on vacation Sunday. So, of course, a bearing went out in the stalk chopper. I call it a tilt out bearing. There's two openings in the holding flange. Tilt or rotate the bearing 90 degrees and it snaps out. With only minutes till Mcmaster closed, I ordered this entire unit: http://www.mcmaster.com/#2773t6/=ddmbco The mounting pillow block is all wrong. I couldn't find just the bearing for the life of me. Do you think the above unit has a tilt out bearing in it? Or, do I need to run 60 miles to a bearing house in the morning? What is the correct name for these bearings? Karl It has a removable bearing insert with a spherical OD, if that's what you mean by "tilt out." The question is whether it matches yours. The overall dimensions will vary depending on the bearing's load capacity. If you pull the insert you can compare the dimensions to McM's downloadable models. If the 2D drawings are not clear, and you can't view the 3D models, let me know and I'll get the dims for you. I just got it apart. Worked till 8:30 LOTS of heat, 3/4 impact, puller, and sledge hammer. I hit the end of the puller with the sledge so hard it bent the push bolt in it. Insert bearing is the right term. Looks like Mcmaster doesn't carry them. Also looks like I got a non standard bearing anyway. 1 7/16 shaft, OD of the bearing is 3.14. All insert bearings at one online store show 2.83 on all 1 7/16 bearings. I noted all 1 1/2 inch bearing have the 3.14 O.D. At least now I have it apart and the right terminology. I can use the phone to find it. And then send milady on a road trip. |
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#4
Posted to rec.crafts.metalworking
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bearing woes
On Thu, 28 Jul 2011 21:13:08 -0500, Karl Townsend
wrote: On Thu, 28 Jul 2011 20:30:44 -0400, Ned Simmons wrote: On Thu, 28 Jul 2011 18:04:37 -0500, Karl Townsend wrote: I just got the AC running so I could use the tractor mowing sudan grass. We want to leave on vacation Sunday. So, of course, a bearing went out in the stalk chopper. I call it a tilt out bearing. There's two openings in the holding flange. Tilt or rotate the bearing 90 degrees and it snaps out. With only minutes till Mcmaster closed, I ordered this entire unit: http://www.mcmaster.com/#2773t6/=ddmbco The mounting pillow block is all wrong. I couldn't find just the bearing for the life of me. Do you think the above unit has a tilt out bearing in it? Or, do I need to run 60 miles to a bearing house in the morning? What is the correct name for these bearings? Karl It has a removable bearing insert with a spherical OD, if that's what you mean by "tilt out." The question is whether it matches yours. The overall dimensions will vary depending on the bearing's load capacity. If you pull the insert you can compare the dimensions to McM's downloadable models. If the 2D drawings are not clear, and you can't view the 3D models, let me know and I'll get the dims for you. I just got it apart. Worked till 8:30 LOTS of heat, 3/4 impact, puller, and sledge hammer. I hit the end of the puller with the sledge so hard it bent the push bolt in it. Insert bearing is the right term. Looks like Mcmaster doesn't carry them. Also looks like I got a non standard bearing anyway. 1 7/16 shaft, OD of the bearing is 3.14. All insert bearings at one online store show 2.83 on all 1 7/16 bearings. I noted all 1 1/2 inch bearing have the 3.14 O.D. At least now I have it apart and the right terminology. I can use the phone to find it. And then send milady on a road trip. The insert in the McMaster pillow block is also 2.83 OD. Fafnir GN 107 KRRB and SKF YAR 207-107 both have a 3.14 OD, but different shaft locking arrangements, and perhaps different seals. Some mfrs call them adapter bearings or wide inner ring bearings. -- Ned Simmons |
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#5
Posted to rec.crafts.metalworking
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bearing woes
....
Fafnir GN 107 KRRB and SKF YAR 207-107 both have a 3.14 OD, but different shaft locking arrangements, and perhaps different seals. Some mfrs call them adapter bearings or wide inner ring bearings. Are these two bearings for 1 7/16 shaft? By chance do you have an online link to a drawing of them? |
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#6
Posted to rec.crafts.metalworking
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bearing woes
On Thu, 28 Jul 2011 21:49:31 -0500, Karl Townsend
wrote: ... Fafnir GN 107 KRRB and SKF YAR 207-107 both have a 3.14 OD, but different shaft locking arrangements, and perhaps different seals. Some mfrs call them adapter bearings or wide inner ring bearings. Are these two bearings for 1 7/16 shaft? By chance do you have an online link to a drawing of them? Yes, both are 1-7/16 shaft. I looked them up the old fashioned way, but I'm sure pdfs of the catalogs are online. -- Ned Simmons |
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#7
Posted to rec.crafts.metalworking
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bearing woes
On Thu, 28 Jul 2011 21:13:08 -0500, Karl Townsend
wrote: On Thu, 28 Jul 2011 20:30:44 -0400, Ned Simmons wrote: On Thu, 28 Jul 2011 18:04:37 -0500, Karl Townsend wrote: I just got the AC running so I could use the tractor mowing sudan grass. We want to leave on vacation Sunday. So, of course, a bearing went out in the stalk chopper. I call it a tilt out bearing. There's two openings in the holding flange. Tilt or rotate the bearing 90 degrees and it snaps out. With only minutes till Mcmaster closed, I ordered this entire unit: http://www.mcmaster.com/#2773t6/=ddmbco The mounting pillow block is all wrong. I couldn't find just the bearing for the life of me. Do you think the above unit has a tilt out bearing in it? Or, do I need to run 60 miles to a bearing house in the morning? What is the correct name for these bearings? Karl It has a removable bearing insert with a spherical OD, if that's what you mean by "tilt out." The question is whether it matches yours. The overall dimensions will vary depending on the bearing's load capacity. If you pull the insert you can compare the dimensions to McM's downloadable models. If the 2D drawings are not clear, and you can't view the 3D models, let me know and I'll get the dims for you. I just got it apart. Worked till 8:30 LOTS of heat, 3/4 impact, puller, and sledge hammer. I hit the end of the puller with the sledge so hard it bent the push bolt in it. Next time, try using an air chisel with a hammer head in it or using an air impact gun to screw the push bolt in. Either of them set up vibrations in the puller and shaft which help the removal. Be sure to lube the puller bolt with extreme duty grease before using it, too. The difference will amaze you. -- Win first, Fight later. --martial principle of the Samurai |
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