This Tapered Roller Wheel Bearing # 387A is designed to fit trailers that use 8 Lug, 9,000 - 10,000lb Hubs. This Bearing Size is typically used as an Inner Bearing (the bearing installed near the Grease Seal), but not all 8 Bolt hubs will use this particular bearing. 8 Lug Trailer Hubs range in Capacity from 7,000lb to 10,000 lbs, and the weight rating of the Trailer Hubs and Axle is determined by the bearings inside. Because of this, 8 Lug hubs must use a variety of different sized bearings, and it's always best to check the Bearing Numbers and Measurements in your Trailer Hub Prior to ordering so you know you're getting the correct parts to fix your Trailer.
Boat and Utility Trailers both need to service and maintain their Bearings regularly, which often includes replacing the bearings to make sure everything runs smoothly. The number one way to maintain your bearings is to make sure they are always properly lubricated with High Quality Trailer Wheel Bearing Grease. We offer a few of the industry's best brands of Trailer Bearing Grease, including Marine Grade Grease for Boat and other Watercraft Trailers. You can find our selection of Greases at this link here.
2 1/4" Inside Diameter
For 9,000 - 10,000lb Trailer Axles using #84 spindle
Typically Used in 8 Lug hubs
Fits Race 382A