12
Rear Hub Bearing Installation
R e a r H u b B e a r i n g I n s t a l l a t i o n
NOTICE
To prevent damage when pressing the bearings into the rear hub, make sure that the bearing press tool contacts both the inner and outer races of
the bearing.
Install a new Zipp 6903/61903 hub bearing into the non-drive side of
the hub with the
black
seal facing outward.
Note:
Ceramic bearings have
blue
seals on both sides of the bearing;
installation orientation is not important.
Install a 6903 30x17 tool into the drive-side bearing bore.
Insert the threaded rod through the drive side of the hub shell. Slide a
second 6903 30x17 tool onto the threaded rod.
Thread the Press Tool handle onto the threaded rod.
Turn the handle clockwise to press the bearing into the hub until it is
hand-tight.
Do not overtighten the bearing.
Remove the tools.
NOTICE
To prevent damage when pressing the bearing into the hub, make
sure that the bearing press tools contact both the inner and outer
bearing races or bearing bores and not the hub shell.
Install a new bearing onto the longer, non-drive side of the axle, with
the
blue
bearing seal facing away from the raised step on the axle.
Note:
Ceramic bearings have
blue
seals on both sides of the bearing;
installation orientation is not important.
Insert the non-drive side of the axle into a Zipp 61903 tool, with the flat,
non-stepped end of the tool against the bearing.
1
2
6903 30x17
6903 30x17
3
Zipp 61903
