Transmission bearings
 

I replaced the 7118 and 7121 bearings in my transmission with the current production bearings from a major parts supplier. They were the Chinese bearings. 1,200 miles later they failed. Looking for a source to get good bearings that will last. Any help will be appreciated.

Thanks!

Re: Transmission bearings
 

Brattons

Re: Transmission bearings
 

As far as I know, the only thing available from most of the suppliers are still the junk bearings. However, a couple of months ago I purchased the 7121 bearings from, of all places, MAC's and they were the good 7121 bearings. I have no idea if they still have them but they might. The shorter bearing is hard to find, but you might call Steve Becker at Bert's Model A in Denver. He might even have some good used ones which are far preferable to the junk currently available.

Re: Transmission bearings
 

Re: Transmission bearings
 

Many of the suppliers were not even aware a switch was made. Those that are aware say that is all that is available. This is probably the greatest dis-service ever done to the Model A kingdom. It is not a question of they may fail, they will fail. I don't think anyone is making a quality bearing. See the attached.

Tom Endy

Re: Transmission bearings
 

Thanks Tom, I saw this last year and couldn't find the good bearings so I got and installed what I could find. This is the result. Touring season and the touring car is down.

I'm hunting for cross numbers for these and not having a lot of success.

Re: Transmission bearings
 

I put the same off shore bearings in about 1,000 miles ago. What is the first sign that they are failing ? Feel like my cherished time machine has become a time bomb.

Re: Transmission bearings
 

I'd be willing to take a crack at ID'ing substitute possibilities if someone can post the specs.

Re: Transmission bearings
 

Mullet,
It was noise in the tranny. Came in all of a sudden. Rattled it home and into the shop. Pulling it tomorrow night (I hope).

Re: Transmission bearings
 

Thanks for all this info on the trans bearings. I was going to rebuild my spare transmission
this coming month. I will see if I can cross these numbers for good bearings.
Thanks again, John

Re: Transmission bearings
 

Thanks for the come back. Please share details and photos of the post mortem.

Re: Transmission bearings
 

A 1947 cross reference I have says the RA-135 Bower is the same as B7118 along with 99026 Hyatt, the B7121 is RA-136 Bower and 99028 Hyatt. Us V8 guys are having the same problem! I'm putting together two transmissions and using nice used bearings even though it goes against everything I learned over the years! Hope this helps, Dale.

Re: Transmission bearings
 

A 1947 cross reference I have says the RA-135 Bower is the same as B7118 along with 99026 Hyatt, the B7121 is RA-136 Bower and 99028 Hyatt. Us V8 guys are having the same problem! I'm putting together two transmissions and using nice used bearings even though it goes against everything I learned over the years! Hope this helps, Dale.

Re: Transmission bearings
 

Try Van Pelt or Michael at 3rd Gen Auto.
Paul in CT

Re: Transmission bearings
 

Please let me know what you find. I'm having difficulty getting some that are American made.

Re: Transmission bearings
 

I think the ones at 3rd Gen are the same as the others, unless he has some old stock somewhere.

Re: Transmission bearings
 

JKY, I am going with the Bower bearings listed above by deuce5wndw. I am familiar with the Bower Bearings, I have used them when I rebuilt several
8" & 9" rear ends. They have always been quality bearings.

Thanks, John

Hope they have not moved off shore!!

Re: Transmission bearings
 

There was another post awhile back that listed some different interchange numbers:
https://www.fordbarn.com/forum/showp...7&postcount=14

Re: Transmission bearings
 

https://www.fordbarn.com/forum/attac...p;d=1620183301
Model A Ford Transmission Roller Bearings

Re: Transmission bearings
 

This site lists a ton of cross-references for A7118:
https://www.yoyopart.com/oem/1136319...ml#interchange

And for A7121:
http://www.kakapart.com/oem/partscro...r-j241256.html

Maybe one of these is available.

Here's a vendor selling a part that interchanges with A7118:
https://wellertruck.com/inventory/pa...earing/bearing

Here's someone on eBay selling 2 units that interchange with A7121:
https://www.ebay.com/itm/BCA-Bower-J...-/233596345459