81206Cylindrical Roller Thrust Bearings

81206 Thrust Cylindrical Roller Bearing | 81206TN And 81206M Cage And Application

The 81206 is a high-load single-direction thrust cylindrical roller bearing with standard dimensions of 30×52×16mm. Optimized for pure unidirectional axial thrust loads, this bearing features high structural rigidity, excellent pressure resistance and stable low-speed operation. It effectively limits shaft axial movement, absorbs continuous heavy thrust and mechanical vibration, and maintains precise shaft positioning during long-term cyclic operation. With a multi-roller dense arrangement, the 81206 delivers larger load capacity and higher stability than standard miniature thrust bearings, making it ideal for medium-sized heavy-thrust industrial machinery. The series includes two mainstream models: 81206TN nylon cage type and 81206M solid brass cage type for diverse working environments.

81206TN Bearing (Nylon PA66 Cage)

81206TN adopts a high-strength injection-molded PA66 nylon cage, serving as the universal and cost-effective standard version. The lightweight and high-toughness nylon retainer ensures smooth and precise cylindrical roller circulation, effectively reducing running friction and operating noise. It features low friction coefficient, good lubricity and excellent anti-fatigue performance during continuous medium-load operation. The nylon cage resists corrosion and avoids rigid metal friction, protecting internal roller structures and extending grease service life. Suitable for clean, normal-temperature and conventional working conditions, 81206TN provides stable and economical operation for general industrial thrust transmission equipment.

81206M Bearing (Solid Brass Cage)

81206M is equipped with a precision machined solid brass cage, designed for heavy-duty and harsh industrial scenarios. The high-rigidity integral brass cage boasts outstanding high-temperature resistance, structural stability and shock resistance, far exceeding the performance of nylon cages. It maintains accurate roller spacing and complete structural stability under high temperature, heavy instantaneous thrust and long-term uninterrupted operation. This effectively prevents roller skew, structural deformation and premature wear, greatly improving overall bearing durability and operational reliability. 81206M is the premium solution for critical core equipment that requires zero-failure continuous operation in complex harsh environments.

Bearing Material And Structural Advantages

All 81206 series bearings are manufactured from high-purity chrome bearing steel. After integral quenching and ultra-precision grinding, the raceways and cylindrical rollers achieve high surface hardness, excellent wear resistance and stable mechanical properties. The flat raceway structure realizes uniform force distribution, avoiding local stress concentration. Its high-rigidity compact structure withstands heavy axial thrust loads with minimal deformation, ensuring accurate positioning and long-term stable operation of mechanical shafts.

Industrial Applications

81206 thrust cylindrical roller bearings are widely used for heavy axial load support and shaft limit positioning. 81206TN is suitable for general heavy machinery, medium-sized gearboxes, automated production equipment and conventional transmission systems. 81206M is ideal for high-temperature equipment, hydraulic machinery, mining auxiliary devices and heavy industrial equipment with continuous heavy-load and shock working conditions.

Product Summary: The 81206 bearing features super axial load capacity and high rigidity for medium and heavy-thrust systems. 81206TN offers cost-effective, low-noise stable performance for standard conditions, while 81206M provides high-temperature and anti-shock durability for harsh scenarios, covering most medium-sized heavy-thrust industrial application needs.