21
Front Hub Bearing Installation
F r o n t H u b B e a r i n g I n s t a l l a t i o n
The procedure for front hub bearing installation is the same for disc brake 76D, 77D, and rim brake 76, and 77 hubs. The 77D disc brake and 77 rim
brake hubs are pictured.
N OT I C E
To prevent damage when pressing the bearings into the front hub, make sure that the bearing press adaptors contact both the inner and outer races
of the bearing.
Install a new bearing into the non-drive side bearing bore of the hub
shell with the
orange
seal facing outward.
Slide a bearing adapter onto the threaded rod of the bearing press
tool. Insert the threaded rod through the non-drive side of the hub
shell and position the narrow end of the bearing adapter into the
center of the bearing.
Slide the second bearing adapter onto the threaded rod, and position
the adapter into the drive side hub shell bearing bore.
Thread the bearing press handle onto the threaded rod. Turn the
threaded handle clockwise to press the bearing into the
non-drive side bearing bore until it is hand tight.
Remove the bearing press tool.
N OT I C E
Do not overtighten the bearing.
1
77D
Non-drive side 6903 bearing
77
Non-drive side 6803 bearing
2
Bearing Press / 6903 Adapter -- 6903 Adapter / Bearing press
Bearing press / 6803 Adapter -- 6803 Adapter / Bearing press
