For those handling heavy-duty trailers, the Replacement Trailer Hub Bearing - 387A is engineered for high-speed performance with exceptional reliability. This tapered roller bearing fits axles rated at 10,000 lbs and 9,000 lbs, ensuring your trailer handles hefty loads with ease. Its inner diameter of 2.250 inches teams up with the matching race 382A, giving the perfect harmony for your hub assembly needs.
Seamlessly integrate the 387A bearing into your setup whether you're working with an 8-288-3 or 8-214-5 hub. This replacement part is not just an aftermarket add-on; it's a key component made to perform under pressure, enhancing your trailer's capability for long hauls without missing a beat.
If you're dealing with Dexter 10k or 9k axles, this replacement bearing proves itself time and time again. It's part of a classic setup with the outer bearing #25580, praised for maintaining stability and longevity under tough conditions.
By using industry-standard races, this bearing minimizes the guesswork and ensures a snug fit when you pair it with the bearing. Given its effectiveness across numerous hubs, you'll appreciate its adaptability, saving you both time and effort in finding compatible parts for your trailer needs.
Taking the precision up a notch, the 387A bearing is crafted for more than just a fit—it’s built for precision. Whether you're replacing worn-out components or stepping up your trailer's specifications, these expertly designed features guarantee smooth, reliable performance every time.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today, were going to review part number 387A. This is a Redline Outer Trailer Wheel Bearing. These replacement bearing are high quality, tapered roller bearings designed for high-speed use. All bearings will have industry standard numbers regardless of the brand. This one right here, if you look on the inner ring, itll be stamped part number 387A.This roller bearing will consist of three parts. The inner ring or cones, which is this part, right here, the tapered rollers and the roller retainer or also the cage, which holds the rollers in place.The critical measurement when replacing your bearings on your trailer is the inner diameter of the bearing.
Youll want that to match what you have on the spindle of your trailer right now. The inner diameter, and when you measure it, its pretty hard to measure with just a ruler or a tape measure. Youll most need a digital caliper like we have here because most measurements are carried out to thousandths of an inch. In this case, the inner diameter, when we measure it, lets turn it over this way, when we measure, that would read 2.250 inches.This outer bearing does use an outer race, which is not included. It would have to be, it is sold separately.
That would be part number 382A. The critical measurement on the outer race is the outer diameter, which on that race for this bearing would be 3.813. That should do it for review on part number 387A. .
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