15123 Replacement Trailer Bearing 1 1/4" ID for 5,200 - 6,000lb Trailers

This Tapered Roller Bearing # 15123 is designed to fit trailers that use 6 Lug Hubs.  This Bearing Size is typically used as an Outer Bearing (the bearing installed near the end of the Spindle), but not all 6 Lug Lug hubs will use this particular bearing.  Because of this, 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. The Inner diameter of this wheel bearing measures 1 1/4 inches, which would be the same measurement as the surface of the spindle this bearing fits on. The Trailer spindle this wheel bearing most commonly is used with is the #42 Spindle, but it is not the only bearing used on that spindle.  There is also a 67048 bearing that could be used instead, it depends on the hub.