rear wheel bearing replacement
#56
Im a tall midget.
iTrader: (28)
The rear wheel hub is pressed into the wheel bearing's inner race. Imagine that the rear spindle (FSM refers to it as "rear hub support assembly") was invisible and you will see something like this:
The inside of the bearing is divided into two sections. Each section has it's own race and bearings. Since the wheel hub is pressed into one of these inner races, it pulls it out of the wheel bearing when you press out the wheel hub:
You need to be careful not to damage the wheel hub's shaft when you remove the inner race. In the picture below, you can see how the wheel bearing is divided into two sections by the outer bearing race. One side of the bearing is still intact while the side facing up is missing the bearings and inner race.
Here's a shot of a brand new Koyo FD wheel bearing next to a damaged FD wheel bearing. You can see that all of the bearings fell out of this halve when it's race was pulled out by the hub. I placed the inner race on the bearing so you guys can see what it looks like.
Hope you guys find this helpful. Rear wheel bearings are available from my website www.j-auto.net if you need a reliable source for them
#58
Wastegate John
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An easy way to remove the race from the hub is to heat it with a torch. Then the race will most likely fall off. If it does not just slide off then it will require minimal force to get it off.
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onefastrx7turbo (01-20-24)
#59
Going for the win
iTrader: (6)
I ordered the timken wheel bearing and hub assembly. I now realize it looks a little different than juans pictures. Im I missing something here?
This is what I bought.
Wheel Bearing and Hub Assembly TIMKEN 512118 Rear Wheel Bearing and H | eBay
This is what I bought.
Wheel Bearing and Hub Assembly TIMKEN 512118 Rear Wheel Bearing and H | eBay
#60
Going for the win
iTrader: (6)
I ordered the timken wheel bearing and hub assembly. I now realize it looks a little different than juans pictures. Im I missing something here?
This is what I bought.
Wheel Bearing and Hub Assembly TIMKEN 512118 Rear Wheel Bearing and H | eBay
This is what I bought.
Wheel Bearing and Hub Assembly TIMKEN 512118 Rear Wheel Bearing and H | eBay
#61
Searching for 10th's
iTrader: (11)
I ordered the timken wheel bearing and hub assembly. I now realize it looks a little different than juans pictures. Im I missing something here?
This is what I bought.
Wheel Bearing and Hub Assembly TIMKEN 512118 Rear Wheel Bearing and H | eBay
This is what I bought.
Wheel Bearing and Hub Assembly TIMKEN 512118 Rear Wheel Bearing and H | eBay
That's pretty good, as the current price for the rear bearing from Mazda is about $95.
If you have a MazdaMotorsports account, the price for the bearing is $57.
#63
Senior Member
iTrader: (4)
Resurrecting this thread, as I will be doing this soon at all 4 corners. I plan on buying new Timken hub assemblies, but I'm not interested in fighting to get just the rear bearings out. It seems that the Timken part number (512118) is the same for both ends. Would someone please confirm? It looks like I'm going to have to torch/press/fight the rears out. Thanks!
#64
Rotary Enthusiast
iTrader: (33)
I believe its the same part number for both sides. But part number 512118 is for the fronts only (as far as I know).
In the rear you reuse the hub (26-241) and just press it into a new bearing
I got my rear bearings from J-auto
I am unaware if Timken makes a rear assembly for our cars. All I know is they do for the fronts.
In the rear you reuse the hub (26-241) and just press it into a new bearing
I got my rear bearings from J-auto
I am unaware if Timken makes a rear assembly for our cars. All I know is they do for the fronts.
#69
Urban Combat Vet
iTrader: (16)
Just a quick addition FWIW...
I didn't take any pictures, but just finished this job. I wasn't able to separate the half-shaft spline from the hub while both were in the car. So I just popped the half-shaft from the differential and took it and the wheel assembly to the bench. There I hung it between my vise and a big anvil with wood padding so I didn't damage the aluminum up-right. After a shot of PB I used an air-chisel with a punch end in the dimple end of the spline. That loosened it right up and it practically fell out. Rest went pretty smooth.
I didn't take any pictures, but just finished this job. I wasn't able to separate the half-shaft spline from the hub while both were in the car. So I just popped the half-shaft from the differential and took it and the wheel assembly to the bench. There I hung it between my vise and a big anvil with wood padding so I didn't damage the aluminum up-right. After a shot of PB I used an air-chisel with a punch end in the dimple end of the spline. That loosened it right up and it practically fell out. Rest went pretty smooth.
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