Fixed Roller Bearing HVB-053-HVPS w/ Flange Plate for Hevi-Rail Linear Guide Rail HVR-SFixed heavy duty linear roller bearing with a 52. 5mm OD and an HVPS 1 welded horizontal flange plate, which is easy to mount. This is part of the Hevi Rail linear guide system, designed to handle substantial axial and radial loads. Compatible with the Hevi Rail Linear Rail HVR S U Type, these linear bearings are crafted from durable case hardened S450J2 MOD carbon steel, offering long lasting heavy duty performance, while the easily interchangeable