This is a single steel tapered Trailer Bearing Race, # 15245, which is designed to fit the 1 1/4 inch inner diameter Bearing # 15123. Trailer races provide a smooth surface for your roller bearings to rotate on and allow the hub to spin, so they are a crucial component of your trailer hub. If the Races in your Trailer hub appear dinged, rusted, or otherwise damaged so that they no longer have a smooth surface, they should be replaced immediately.
This Bearing Race size is typically seen in 5,200lb - 7,000lb, 6 and 8 Lug Trailer Hubs. To determine if this is the correct size Race for your Trailer hub Bearings, you could check your Trailer Hubs Current races by removing them from the hub (from the opposite side, tapping the back of the race lip with a punch) and checking the number on the race. Races and bearings have standardized numbers, which tell you their size. These numbers are stamped onto the face of each race, you can see an example of how that looks in the photos above. The 15123 bearing that fits into this 15245 race is typically used as the outer bearing for a variety of different 6 lug and 8 lug trailer hubs.
Most of the time, the Races inside your hubs are replaced alongside the Trailer Bearings and Trailer Grease Seal as a part of routine maintenance, usually done every 6 months to 1 year depending on how often the trailer gets used. If you are replacing all the inner parts of your trailer hubs, we do offer Bearing Kits that contain the Bearings, Races, and Grease Seal in one convenient kit. You can find the bearing kits on our website here.
We also offer the Bearing and Hub Parts individually for easier bulk ordering, or for the occasions where you need to mix and match parts that are otherwise not in a standard kit, or if you just need to replace a single part.
- Race # 15245
- Fits Bearing # 15123 (1 1/4" Inner diameter bearing)
- Typically used with 6 lug or 8 lug, 5,200 - 7,000lb Trailer Hubs
- 2.441" Outer Diameter