TRAKROL® bearings feature black oxide treated bearing steel. They utilize either a precision ball or tapered roller bearing insert for longer operating life under combination radial and thrust loads. The capacity for combination loads allows the TRAKROL bearing to be available in plain (cylindrical), V-groove, and flanged O.D. in both stud and yoke styles. Small sizes (<3” OD or point diameter) use sealed ball bearing inserts. They also use a NYLAPLATE® seal for additional protection. Stud type configurations utilize a metal end plug seal on the roller face providing a long lasting seal. Both bearing types provide a large internal grease reservoir along with special sealing. This makes TRAKROL® bearings an excellent choice where reduced maintenance is required.