81101Cylindrical Roller Thrust Bearings

81101 Thrust Cylindrical Roller Bearing | 81101TN And 81101M Cage And Application

The 81101 is a standard single-direction thrust cylindrical roller bearing with dimensions 12×26×9mm. Designed specifically for pure heavy axial load support, this bearing features high rigidity, low deformation and ultra-stable axial operation. It effectively bears unidirectional thrust pressure, limits axial shaft movement and maintains precise positional stability during continuous operation. Different from spherical thrust bearings, the 81101 series delivers higher axial rigidity and lower friction loss, ideal for low-speed, heavy-thrust precision mechanical systems. It is available in two mainstream versions: 81101TN with nylon cage and 81101M with brass cage, for general and harsh working conditions.

81101TN Bearing (Nylon PA66 Cage)

81101TN adopts a high-strength nylon PA66 injection cage, the lightweight and cost-effective standard version. The optimized nylon cage features low friction coefficient, excellent toughness and anti-fatigue performance, ensuring flexible and accurate roller guidance. It effectively reduces running noise and friction heat during continuous cyclic operation, improving overall mechanical efficiency. With strong corrosion resistance and good lubricity, the nylon cage avoids rigid friction and abrasion. Suitable for medium-temperature, clean and standard industrial environments, 81101TN offers stable performance and outstanding cost performance, serving as the universal choice for conventional precision thrust equipment.

81101M Bearing (Solid Brass Cage)

81101M is equipped with a precision solid brass cage, the high-reliability heavy-duty configuration. The high-rigidity integral brass cage features superior high-temperature resistance, structural stability and mechanical strength. It does not deform under high-temperature operation, heavy instantaneous thrust loads and long-duration continuous working conditions. The brass structure maintains precise roller spacing and consistent operational accuracy, greatly improving bearing durability and anti-shock performance. With excellent thermal stability and wear resistance, this model adapts to harsh working environments where nylon cages cannot withstand high heat and heavy pressure, providing long-term zero-failure operation for critical core equipment.

Bearing Material And Structural Features

81101 series bearings are made of high-purity chrome bearing steel. After overall quenching and precision grinding, the raceway and cylindrical rollers achieve high hardness, strong wear resistance and low friction characteristics. The flat raceway structure ensures even force distribution, effectively avoiding local stress concentration. The compact and highly rigid structure enables the bearing to withstand extreme axial loads while maintaining minimal deformation, guaranteeing stable and precise axial positioning for mechanical shafts.

Industrial Applications

81101 thrust roller bearings are widely used for unidirectional axial load limitation and support. 81101TN is ideal for precision instruments, small gearboxes, automated machinery, light industrial equipment and general mechanical thrust positioning systems. 81101M is suitable for high-temperature equipment, hydraulic machinery, small mining auxiliary devices and high-load precision transmission systems that require high stability and long service life.

Product Summary: 81101 is a high-rigidity thrust cylindrical roller bearing for precision axial load support. 81101TN provides economical and quiet stable performance for standard conditions, while 81101M offers high-temperature and high-shock resistance for harsh scenarios, covering most precision heavy-thrust industrial applications.