STO25 Track Rollers Yoke Type Sealed 25x52x15.8mmSTO25 Yoke Type Track Roller Bearing 25mm x 52mm x 15. 8mm Sealed, With Inner Ring The STO25 is a sealed yoke type track roller with an integrated inner ring, made to guide linear motion under heavy loads. Its perfect for cam followers, conveyors, or automated equipment that needs clean, controlled rolling without external debris interference. Pack size: One bearing Type: Yoke type track roller Design: Sealed on both sides Inner diameter: 25mm Outer