Check the listing for details. HD-053 / 4.053 High Load Combined Roller Bearing. Condition: New. Listed at 58.88 USD. IDA Motion's HeavyD Product line includes: combined bearings, flange plates, steel u-channel, steel I-channel, jumbo high load bearings, and more. Download the catalog and get more information at: combined-bearing.com IDA Motion HeavyD High Capacity Linear Bearings are specifically designed to handle high axial and radial loads simultaneously in rough applications. These specialized bearings are often called combi bearings, combined bearing, combination bearing, high load cam followers, heavy duty roller bearings, mast guide bearings and more.... Typical applications include but are not limited to: - Material handling loaders and unloading machines - Palletizers - Cranes and hoists - Horizontal and vertical feed and lift units - Froklift trucks - ASRS Systems - Shrink-wrappers General Information: Disassemble bearing components prior to weldingAxial bearing should be mounted parallel to the rail Lubrication:Bearing are supplied lubricated with grease, grade 3Bearings HD-055 to HD-063 can be re lubricated by grease zerk fitting Temperature: -10 degrees C to 80 degrees C (14 degrees F to 176 degrees F) Materials:Outer ring: Case-hardened steel UNI 20 MNCr 5, case-hardened to 58-62 HRcInner ring: Hardened steel En 31 - SAE 52100, case-hardened to 60-64 HRcInternal cylindrical rollers: Flat ground heads are case-hardened steel, En 31-SAE 52100. hardened to 59-64 HRcWeldable hub: Low carbon steel (C dimension with tolerance = +0 / -0.05 mm) Seals:Radial bearing has steel labyrinth/axial bearing uses rubber seal