17
Rear Hub Bearing Installation
Insert a new 6903 bearing into the non-drive side of the hub.
N OT I C E
The spacer tube can be crushed during bearing installation if it is
not aligned with the inside race of each bearing.
Slide a SRAM 6903 bearing press tool onto the threaded rod of
the Wheels Manufacturing Press-1 Sealed Bearing Press tool. Insert
the threaded rod of the bearing press through the drive side of the
hub shell. Slide the second SRAM 6903 bearing press tool onto the
threaded rod.
Thread the bearing press handle onto the threaded rod.
Turn the threaded handle clockwise to press the bearing into the
hub until it is hand-tight.
N OT I C E
Do not overtighten the bearing.
Applying excessive force while installing the second bearing may
result in damage to one or both bearings.
Remove the bearing press tool.
Install a new bearing shield onto the non-drive side.
Use the SRAM® Butter grease syringe to dispense 1 gram of grease
onto the ratchet ring. Then using your finger or a brush to spread
the grease around the ratchet ring.
5
6903 Bearing
6
SRAM 6903 Bearing Press tool
22 mm
7
8
SRAM® Butter
Insert the pawls into the pawl slots.
You may need to use a pick to compress each leaf spring to assist
with inserting the pawls.
Orient the cambered edge (the edge that is slightly more curved)
of each pawl along the outside of the carrier so that it points
counter-clockwise.
Apply a light coat of grease to the leaf springs and pawls.
Insert the axle through the driver body.
Slide the flat washer over the axle until it rest on the inner race of
the bearing.
5
22 mm
20 mm or 15 mm Thru Axle
22 mm
6
22 mm
20 mm or 15 mm Thru Axle
22 mm
7
8
