Bontrager 231793 Rear hub- Cartridge bearing, 2002/2003 Bontrager Race, Race Disc rear wheels

Fig. 2F

End nut

Fig. 3F

Fig. 4F

Rear hub- Cartridge bearing

2002/2003 Bontrager Race, Race Disc rear wheels

Recommended tools 15mm cone wrench

19mm cone wrench Small slot screwdriver Hammer (soft faced) Cartridge bearing remover Bearing press

	DISASSEMBLY
	Hub parts and names are referenced on next page.
Fig. 1F

ASSEMBLY

Lubricate bearings and threads

1. Lubricate the threads on

the axle with Wrench Force™

synthetic grease, or a similar

product.

2. Lightly grease the inner

and outer surfaces of each bear-

ing where they contact the hub

Inside

Outside

Axle spacer End nut

1. Hold the left side (non-

drive) axle spacer with a 19mm

cone wrench and loosen the end

nut (Fig. 2F) with a 15mm cone

shell and axle.

Assemble the hub

Fig. 5F

Axle spacer

wrench.

2. Remove the end nut,

washer, and axle spacer (Fig. 3F)

from the axle.

3. Insert a thin screwdriver

blade under the bearing seal

(Fig. 4F) and pry off the seals

from both sides of the hub.

4. Tap the left end of the

axle with a hammer to drive

the axle out of the hub.

5. If inspection shows it

necessary, remove the washers

and end nut from the right side

of the axle.

To loosen the end nut, re- install the left side axle spacer and locknut, and lock the end nut against the axle spacer.

Hold the axle spacer with a cone wrench while you loosen the right side end nut. Alternately, hold the axle with vise grips.

6.Place a bearing removal tool on the left bearing. With a punch on the bearing tool, drive the left bearing out of the hub with a hammer.

1.Press the right bearing onto the right side of the axle, denoted by the smooth, non-threaded area with a shoulder.

Note: the black seal of the bearing faces out (Fig. 5F).

2.Place the axle through the freehub body.

3.Press the bearing into the hub shell with the bear- ing press.

4.Slide the left bearing onto the axle with the black seal facing out. Thread the axle spacer onto the axle, and use the bearing press to press the left bearing into the hub. The axle should turn freely with no lateral play in the hub shell.

5.Place the bearing seals into the hub with the let- tered surface facing out.

6.Thread the axle spacer onto the axle. Place a 17mm cone wrench on the axle spacer and a 15mm cone wrench on the end nut. Tighten the end nut against the axle spacer.

After completing assembly of the hub, check its function by spinning the axle with your fingers. It should rotate freely without irregular friction. A small amount of lateral play is acceptable if the play is eliminated when the wheel is installed with the quick release properly closed.

7. If it is necessary to remove

the freehub body, refer to the Freehub Body section, pages Freehub 1 and Freehub 2, for removal and installation instructions.

When overhauling the hub bearings, it is usually not necessary to remove the freehub body.

Clean and inspect the parts

1.Wipe old grease or debris from the hub bearing

seats.

2.Normally, bearings are not re-used. If you are re- installing an old bearing, wipe off any grease or debris from both the inner and out surfaces.

Do not use solvent on the bearing, as the solvent will contaminate the grease. This may cause bearing failure.

16 2003 Bontrager Service Manual