This track roller carries a profiled outer ring designed to run directly on a mating track, guiding motion without a separate housing. Symbol LFR5206-25-2Z, net mass 0.43 kg, sealing type 2Z — shields on both sides protect the internal raceway and rolling elements from dust and moisture ingress. The 2Z sealing arrangement allows operation with basic external protection while retaining the grease fill inside the unit, reducing maintenance frequency. Its yoke-type design suits applications where a component rolls along a fixed guide surface, transmitting radial load through the profiled outer ring rather than through a separate bearing housing.