pinion opinion

[Bob Culver]

I recall reading that Chapman mixed ratios!!
From experience with two Regent sets the cws seemed soft. The pinion wore hollows in the cw making reassembly tedious.
Normally any wear is very slight.
I have seen lapping demonstarted on a Gleason machine. A firm used it to try and cure gaurantee comebacks for noise. The pinion osciallted about over a small range so the final mesh was not hopelessly critical