The 32021 series of medium-duty Tapered Roller Bearings is renowned for its exceptional combined radial and unidirectional axial load-carrying capacity. Strictly adhering to the GB/T 297 standard (compatible with ISO standards), this product features high dimensional accuracy, stable performance, and long service life, making it an ideal choice for key support components in heavy machinery transmission systems. 1. Superior Load Capacity and Durability Optimized tapered raceways and rollers ensure uniform stress distribution. High load ratings (178kN dynamic, 255kN static) easily handle heavy loads and shock loads, ensuring long-term stable operation of the equipment. 2. High Rigidity and High Precision When mounted and preloaded in pairs, the bearings form an extremely rigid support system, effectively suppressing shaft deflection and vibration. Precise dimensional tolerances ensure accurate transmission of the main engine, making it particularly suitable for applications requiring high positioning accuracy. 3. Flexible Configuration and Clearance Adjustability As a typical feature of tapered roller bearings, the 32021 supports clearance adjustment. Users can precisely adjust axial clearance based on actual operating conditions (speed, temperature, and load) to achieve optimal operation and maximize service life. 4. Supports paired configurations (back-to-back, face-to-face, and tandem) to meet the needs of various structural designs and load directions. Wide Applicability The standard material (high-purity chromium steel) and advanced heat treatment process (bainite quenching or martensite quenching + low-temperature tempering) provide high wear resistance and fatigue strength, suitable for a variety of harsh environments. Main Applications This product is widely used in the following heavy and medium-duty machinery: Automotive: transmissions, rear axle differentials, and heavy truck wheel hubs. Industrial Machine Tools: high-speed spindles, drive screw supports, and gearboxes. Heavy Machinery: mining crushers, construction machinery (such as road rollers), port cranes, and conveyor rollers. Agricultural Machinery: transmission systems for tractors and harvesters. Wind Power and Metallurgical Equipment: general supports on gearboxes and drive shafts.
