Hi,
This is the tumbler gear (think that's the right name) out of my '42 round dial 10ee feed gear box. It looks a little chewed up, so I'm thinking of replacing it. Its 16 DP. Does anyone know the PA? I have a gear gauge, its fits 20 degrees well, the gauge fits more deeply that 14.5 and rolls more smoothly....but I'm kind of thinking gears from that era were 14.5. Any experience with the pressure angle on these? For that matter, anyone share the secret way to determine the PA directly? I have a shadow graph - is just a visible comparison with a print out of 20 and 14.5? I've also got a gear tooth vernier but have discovered a chart or formula for using to find PA
The stack of gears is good shape except one, not sure if its worth replacing....what do you guys think? Worth it, or leave it?
Thanks
This is the tumbler gear (think that's the right name) out of my '42 round dial 10ee feed gear box. It looks a little chewed up, so I'm thinking of replacing it. Its 16 DP. Does anyone know the PA? I have a gear gauge, its fits 20 degrees well, the gauge fits more deeply that 14.5 and rolls more smoothly....but I'm kind of thinking gears from that era were 14.5. Any experience with the pressure angle on these? For that matter, anyone share the secret way to determine the PA directly? I have a shadow graph - is just a visible comparison with a print out of 20 and 14.5? I've also got a gear tooth vernier but have discovered a chart or formula for using to find PA
The stack of gears is good shape except one, not sure if its worth replacing....what do you guys think? Worth it, or leave it?
Thanks