Crown Load Wheel Bearing Cup LM501310 – BR-409

Tapered roller bearing cups form the outer race that a matching cone and its rollers seat against, and Crown catalogs this cup, part number LM501310, as the outer race in a load wheel bearing assembly for its lift trucks. It measures 2.891 inches across the outer diameter with a 0.580 inch cup width, sized to pair with the LM501349 cone that carries the rollers inside it.

The cup is a hardened steel race that presses into the wheel bore, where its tapered seat lets the assembly carry both the radial weight rolling through the wheel and the thrust loads that come with turning under a load. At 0.26 pounds it is proportioned for the load wheel's supporting role, working alongside its cone rather than on its own. Load wheels take a large share of a truck's rated load, so the race surface eventually pits or spalls and starts to show up as roughness or noise in the wheel.

Because the cup and cone wear as a matched pair, replace them together rather than running a new race against used rollers. Match the 2.891 inch outer diameter to the wheel bore so the cup seats fully and the assembly runs true.