This is an 8K grease bath hub and drum with an 8 on 6.5" bolt pattern. It fits the True 8K TK HD trailer axle: 8000 lb electric brake, 8 lug, 9/16" studs, 12-1/4" x 3-3/8" brake, 3.5" tube.
The inner and outer bearing races and the 9/16" studs come pre-pressed into the hub. It is designed for use with a #42 spindle. Each hub and drum is rated for 4,000 lb.
It comes as a hub and drum only, as a full hub and drum assembly with bearings and hardware, or as a service kit for both sides of the axle.
- Type
- 8K grease bath hub and drum
- Bolt pattern
- 8 on 6.5"
- Capacity
- 4,000 lb per hub
- Brake size
- 12-1/4" x 3-3/8"
- Fits axle
- True 8K TK HD trailer axle, 8000 lb electric brake, 8 lug, 3.5" tube
- Spindle
- #42
- Pilot diameter
- 4.56" (old style)
- Studs
- 9/16", pre-pressed in hub
- Inner race
- 25520, 3.265" OD, pre-pressed in hub
- Outer race
- 02420, 2.688" OD, pre-pressed in hub
- Bearings
- 25580 inner bearing (1.750" ID) and 02475 outer bearing (1.250" ID)
- Hub only
- 1 hub/drum with races and studs pressed in; bearings, grease seal, grease cap, wheel nuts, spindle nut and spindle washer sold separately
- Assembly includes
- 1 hub/drum, 8k bearing kit, 10-36 double lip grease seal (3.376" OD, 2.250" ID), 25580 inner bearing, 02475 outer bearing, 8,000 lb grease cap with plug, cotter pin, tang washer, grease tub/tube, 8 co