How To Determine Bearing And Grease Seal Size For A 1987 Boat Trailer

Published 06/03/2023

Products Featured in This Question

Trailer Hub Assembly - 2,200-lb E-Z Lube Axle - 5 on 4-1/2 - 13" - 15" Wheels - Galvanized

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$89.24

4" Carbon Fiber Digital Caliper

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$12.13

Question:

I have a 1987 Basstracker TX17 with the original trailer. The inside seals are leaking grease. Id like to change the hub assembly to freshen up the trailer with new bearings, hubs and seals. Due to age I cant identify the correct numbers. Can you help?

asked by: Steven B

Expert Reply:

Yes, since we can't look up the numbers you'll just have to remove the hub and measure the journals of the spindle at points B, C, and D in order to find the inner diameter of the grease seals. You can then measure the hub for the outer diameters for the grease seal and bearings. Since these numbers are very precise you'll need to use a set of calipers # PTW80157 to get an accurate measurement. I'll also need to know the bolt pattern for your wheels so I can find the correct replacement hubs. If you know the axle capacity it will help narrow down the search as well.

If you can get me these measurements I'd be happy to find the correct replacement parts to get your trailer back up and running.

expert reply by: Kevin C