Bearing Replacement Recommendation for Timken 07100

Updated 01/05/2025 | Published 08/30/2017

Question:

Redoing an old small boat trailer. Is bearing# L44649 a replacement for a Timken 07100 hub bearing which has a bore of 1 inch as per catalog?

asked by: Joe B

Expert Reply:

The 07100 bearing number you referenced is an Timken bearing that has the same dimensions as # L44643.

expert reply by: Jameson C

Mike H.

1/5/2025

The Timken 07100 bearing has a 1.9689 outer dimension. How is that the same as a L44643 which has a 1.98?

Jameson C.

1/5/2025

@MikeH that is a very slight difference but yes it is different. Normally the outer diameter is harder to get that exact of a dimension on since the components of the bearing can move.

Mike H.

1/5/2025

@JamesonC Sorry I should have been more specific those are also the outer dimensions for the cups for those bearings. The reason I replied is I tried replacing the parts described cups and the 1.98 cup will not fit in my hub but the 1.9687 cup will. it's a really old trailer, I heated the hub and froze the cup still no luck.