Hello grinding masters,
I am new for bearing field and start a project with bearings application.
Two questions confused me about the bearing race super finishing.
>> Why outer race of four points contact ball bearing can not be super finished ?
This geometry is like two gothic arch...
See below specification from a reputable brg manufacturer catalog
Cr (KN) Co (KN) d X D X B (mm)
4P QJ 308 = 86.5 68 40X90X23
DAC 3308 B = 62 45 40X90X36.5
AC 7308 B = 50 32.5 40X90X23
4 points (4 P) has higher load...
One of my customer is able to check dimension of raceway,
we send some brg of Reputable bearing manufacturer for trial.
The result is strange. Raceway dimension/ball diameter are not same?
SKF I.R. 0.515 O.R. 0.525
FAG I.R. 0.52 O.R. 0.54
NSK I.R. 0.515 O.R. 0.52
What is the best...
Recently, my job seems to work on a mathematic problem.
We did many efforts on engineer test and get a perfect graph curve by discrete data (100 points on EXCEL).
But my customer interest also the inital Formula behind those data. Perhaps it’s a function or calculus.....not clear.
Engineers...
Recently, my job seems to work out a mathematic problem.
We did many efforts on engineer test and get a perfect graph curve by discrete data (100 points).
But my customer are interested on the inital Formula for those data. Perhaps it’s a function or calculus.....not clear.
Unfortunately...
