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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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Raglan 5" Lathe, gearcutting data for changewheels
Hi,
Does anyone have gearcutting data for the changewheel gears on this lathe. Specifically the Tufnol tumbler gears 26 tooth; 2.00" dia, but what pressure angle and form is it a British or American standard. The involute cutter that I have is 14.5 pressure angle but this when offered up to the pinion there is a light gap at the flanks at the root? Thanks for reading this post John |
#2
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Raglan 5" Lathe, gearcutting data for changewheels
wrote in message
... Hi, Does anyone have gearcutting data for the changewheel gears on this lathe. Specifically the Tufnol tumbler gears 26 tooth; 2.00" dia, but what pressure angle and form is it a British or American standard. The involute cutter that I have is 14.5 pressure angle but this when offered up to the pinion there is a light gap at the flanks at the root? Thanks for reading this post John ================ http://www.lathes.co.uk/raglan/ |
#3
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Raglan 5" Lathe, gearcutting data for changewheels
wrote in message ... Hi, Does anyone have gearcutting data for the changewheel gears on this lathe. Specifically the Tufnol tumbler gears 26 tooth; 2.00" dia, but what pressure angle and form is it a British or American standard. The involute cutter that I have is 14.5 pressure angle but this when offered up to the pinion there is a light gap at the flanks at the root? Thanks for reading this post John I have no specific knowledge of this lathe, but they are more than likely 14.5 deg. Understand that standard gear cutters cut a range of teeth and really only fit the middle of the range perfectly. In any event, the change gears on a lathe are really more about dividing, than power transmission and you can get away with a pretty lousy fit if the tooth count is right.. Paul K. Dickman |
#4
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Raglan 5" Lathe, gearcutting data for changewheels
replying to robins.nyewood2, John wrote:
14 D.P. 14.5 P.A. -- for full context, visit https://www.polytechforum.com/metalw...ls-642040-.htm |
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