Replacement Bearings, Seals, And Hub/Drums For A 3,500lb Axle
Updated 02/03/2026 | Published 07/29/2024
Products Featured in This Question
Question:
I need break drum and bearings for 3500lb axel
asked by: Steve K
Expert Reply:
Hi Steve,
In order to get you the correct parts we'll need a bit more info on your setup. Is there an axle tag on the axle tube that lists the serial number? If not you'll need to remove the hub and check the bearings and grease seal for part numbers. If the part numbers have worn off then you'll need to measure the spindle with a caliper # PTW80157 at points B, C, and D as well as the diameter of the hub bore hole to get the inner and outer diameters. These dimensions along with the bolt pattern for your wheels will allow me to find the correct replacement bearings, grease seals, and replacement hub/drums for your axle.
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Product Page this Question was Asked From
Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K
- Trailer Brakes
- Disc Brakes
- Marine Grade
- 8 on 6-1/2 Inch
- Hub and Rotor
- 1/2 Inch Studs
- 7000 lbs Axle
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- Hydrastar
more information >
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Samuel C.
2/3/2026
Hey Steve, were you able to get those bearing and spindle measurements for your 3500-lb axle? Once you have them, I can help narrow down the right hub and drum options. Let me know what you find so we can get you set up with the correct parts.