These covered bearings have a smooth urethane surface that is cast directly to a set of two precision sealed ball bearings. They provide smooth, quiet and non-marring operation. The urethane provides excellent abrasion resistance and durability. They are available in 35, 60 and to 95 durometer.
Width Roller: .392 in.
Length Thread to Roller: .12 in.
Number Bearing: R3-2RS in.
Durometer : 35 Shore A.