How to Determine Correct Replacement Bearings and Grease Caps for Boat Trailer

Updated 11/06/2020 | Published 11/04/2020

Products Featured in This Question

Complete Bearing Kit with L44649 Inner/Outer Bearings and 10-9 Grease Seal Fits 1.063" Spindles

(3378)

$20.68

Replacement Trailer Hub Bearing - L44649

(2110)

$21.43

Grease Cap, 1.988" OD Drive In - Qty 2

(2155)

$6.81

Question:

Hello, I am looking for replacement bearings and cap for my boat trailer. It is a bear 2 axle trailer, it has 13 5 bolt wheels... Not sure if you need anything else, figured Id ask for help.

asked by: Aaron M

Expert Reply:

We can set you up with the replacement bearings for your boat trailer, though there are some things you will need to know first. In order to find the correct bearings, you will need to take apart your hub assembly and look at the bearings themselves; wipe away the grease and you should be able to see the part number stamped directly on them.

If you are unable to find them, you need to use digital caliper and measure your spindle to the thousandths of an inch where the bearings ride. You can use the photo I've attached to see exactly where you need to measure.

For example, if you had inner and outer bearings # L44649, with an inner diameter of 1.063" you would need the Bearing Kit # BK1-150

For the grease cap you will need to use the same caliper to measure the inner diameter of your hub to match it up. For example, if it was 1.988" you would need the Grease Caps # RG04-020.

I've also added a link to a help article on common bearing sizes, as well as a link to our available bearing kits and grease caps.

expert reply by: Kyle S