GC-A Roller Type One Way Backstop Clutch Without Bearing Support
Production introduction
Application: primarily used on motorcycle starter
Type GC-A is a roller type freewheel non-bearing supported. Bearings are required to support
axial and radial loads. Lubrication and sealing must also be provided by the installation. Nominal
outer diameter is the same as a series 63...Ball bearing.
A typical arrangement is to install this type alongside a bearing within the same location tolerances,
as shown on the following page. The inner race is keyed to the shaft.
The outer race has positive n6 tolerance, to give a press fit in a H7 housing. Additional side notches in
the outer race provide for positive torque transmission.
If the housing is to K6 tolerance, use of the notches is not necessary, but the housing must be strong
enough to not expand after assembly. This design can accept an axial misalignment of inner and uter race of ± S/2.
Products Parameters