Chevrolet transmission bearing numbers

[Lynn Eades]

Phil, Bob, and others. Here are some old numbers : (the ones Phil mentioned in post #4)
1. G.M. bearing # 141854 crosses over to:
Hyatt 93424
RBC RA 143
Bower 28-1248
SKF F93424

2. a 3307 (is a very common bearing found under 6307)
It crosses over to:
Timken BRM 035
Hoffman 335
R&M MJ35
SKF6307
Norma- Hoffman MT307, 307.
MRC 307m,307r, 307s.
New Departure 1305, 3305

3. The Hyatt C1206 crosses over to
Bower s1206
R&M B8372
SKF FC1206 and F-1206-TS

4. The Hyatt C1207 crosses over to;
Hyatt 1207 TS
Bower S-1207
R&M 8371
SKF FC1207, I-130508

These cross references come from a post WWII Australian Army bearing interchange book. If you have a pile of ex Australian bearings with Australian Army part numbers (eg.BG-insert your number-Z) Then I can help I.D. them
The book also lists R.A.O.C. numbers.
Not a modern interchange but another angle.

The following is just some bearing blurb for those who might be interested

Some bearings like the 3307 are very common today (as a 6307) They are available in Std, High load (extra balls- Slot filled) with a single or double tin shield or with single or double rubber seals. There are also variations of these bearings that have a circlip groove.

If you have a ball bearing with 4 digits and it starts with a 6 (eg 6203) it means it is a metric (sized) std. type annular grooved ball bearing. The last 3 digits identify the size.

Some bearings can be sized different from std. This means the inner or outer diameter is less or more than std. to allow for a slide fit assembly, or indeed a looser fit for operation at high temperatures (an example: C3)

Bored yet?