Table of Contents
Advertisement
SPIRAL BEVEL GEAR TOOTH CONTACT
Contact may vary, but generally is approximately in the tooth centre, equi-spaced between root and
tip. The marking may be towards toe on some gears on both flanks or marking crossed slightly i.e.
towards toe on convex flank and heel on concave flank or vice versa.
Apply gear marking compound on both sides of 7 to 10 teeth on the Crown Wheel (B10). Whilst ap-
plying resistance to the Pinion (B10) rotate the Crown Wheel back and forth (Not Full revolutions)
until a clear contact pattern is shown. Compare the contact pattern to the illustrations below and re-
shim the Pinion Bearing bore in the Main Case (B19).
If the Pinion Bearing (B9) is Re-shimmed (B18) the backlash must be re-set between the Crown
Wheel and Pinion.
Go back and repeat all procedures in setting the backlash.
Correct Pattern
Incorrect Pattern
27
Advertisement
Table of Contents
