Is this normal and/or acceptable? (rear hub bearing surface)

need RX7 · 03-04-2013, 03:16 AM

I just pressed out the rear hub and bearing, and noticed that part of the machined bearing surface of the hub has a texture (pictured below). The Area that is covered by the bearing race is smooth.

Is this normal? Is it caused by wear or is it just made that way? Is it okay to reuse?

RETed · 03-04-2013, 09:42 PM

Looks like someone took a grinder and tried to remove some rust...

As long as that surface doesn't contact some kinda seal, it should be alright?

-Ted

rx7 vinnie · 03-04-2013, 10:25 PM

If it was making noise driving...it appears that the ball bearings were "locking-up" and causing the inner race to "spin" on the hub collar. I would just buy an aftermarket or OE one and press it on the new bearing because more than likely the old hub collar will not fit "tight" on the new inner race of the bearing.... They're not expensive at all.

03-04-2013, 03:16 AM	#1
need RX7 Clean S4 Nutswinger Join Date: Mar 2008 Location: Sterling Heights, MI iTrader: (0) Posts: 485 Rep Power: 17	Is this normal and/or acceptable? (rear hub bearing surface) I just pressed out the rear hub and bearing, and noticed that part of the machined bearing surface of the hub has a texture (pictured below). The Area that is covered by the bearing race is smooth. Is this normal? Is it caused by wear or is it just made that way? Is it okay to reuse? __________________ -Ted -1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status. -1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress. Last edited by need RX7; 03-04-2013 at 03:32 AM..

03-04-2013, 10:25 PM	#3
rx7 vinnie I SEE DEAD PEOPLE Join Date: Mar 2008 Location: nashville, tn (antioch) iTrader: (0) Posts: 743 Rep Power: 17	If it was making noise driving...it appears that the ball bearings were "locking-up" and causing the inner race to "spin" on the hub collar. I would just buy an aftermarket or OE one and press it on the new bearing because more than likely the old hub collar will not fit "tight" on the new inner race of the bearing.... They're not expensive at all. __________________ VIN-AUTO Rotary list of Fails below: 86 mazda rx7 csp 61 N/A= because RACECAR 87 mazda rx7 t2 with 13b-re cosmo GT42= FKN RUNS!!! 03 Dodge Viper SRT-10 Vert 06 dodge ram 2500 Megacab turbo Cummins=puller 16 MB ML350