PeachParts Mercedes-Benz Forum - View Single Post - Replacing the rear wheel bearings on a W123, W126

dmorrison · #5 12-01-2007, 10:59 PM

Picture #16

Use a BRASS drift to remove the outside and inside outer races. Using a steel drift will scar the metal and you don’t want that. This picture shows me removing the inside outer race. You remove the outside outer race from under the car

Picture #17

Clean the interior completely of all grease and brass bits that will come off the drift. Use a degreaser, dry it and then blow it out with compressed air.

Picture #18

A clean and dry wheel carrier section.

Picture #19

Another view.

Now install the new races. A technique to use is to use the old race to hit with the hammer as you are installing it. The old race will receive all the blows and the new one will have a solid matting against the old one eliminating damage to the new race. Drive them until they are seated completely.

Picture #20

Install the new outside bearing on the hub. I used a chisel as shown and ONLY strike the inner race not the bearing cage. Slowly drive it onto the hub until seated. Continuously tap the race rotating all around its circumference.

Grease the bearings as best you can, install grease into the wheel carrier. Total grease installed in the assembly is 50G. This is split between the outside and inside bearings.
Place the crush washer on the hub.
Install the hub into the wheel carrier.

Dave