Gearing Contact Patterns
Gear Terminology
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IDEAL
CONTACT Pattern is spread evenly over tooth's profile
with concentration nearer toe than heel. |
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COMPETITION
CONTACT Pattern concentrated just up from the toe
covering 1/3 to 1/2 of the tooth. |
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HIGH
CONTACT Pattern is concentrated at the crown of
the drive gear tooth. |
Move
the pinion deeper in towards the differential carrier (add
pinion shim). |
|
LOW
CONTACT Pattern is concentrated in the root of
the drive gear tooth. |
Move
the pinion out away from the differential carrier (subtract
pinion shim). |
|
HEEL
CONTACT Pattern is concentrated off the heel end
of the drive gear tooth. |
Move
the ring gear closer to the pinion (decrease backlash) while
maintaining minimum backlash. |
|
TOE
CONTACT
Pattern is concentrated off the toe end of the drive gear
tooth. |
Move
the ring gear away from the pinion (increase backlash) while
maintaining minimum backlash. |