89308Cylindrical Roller Thrust Bearings
| 89308Cylindrical Roller Thrust Bearings | |||
|---|---|---|---|
| Part Number | 89308 | Weight(Kg) | 0.484 |
| d | 40 | Dynamic Load Co(N) | 123000 |
| D1 | 78 | Static Load Cor(N) | 385000 |
| B | 22 | Grease Speed | 2000 |
| R | 1 | Oil Speed | 4000 |
89308 Spherical Thrust Roller Bearing | 89308TN And 89308M Cage And Application
The 89308 is a high-performance single-row spherical thrust roller bearing with standard dimensions of 40×78×22mm. Designed for heavy axial thrust loads and dynamic shaft misalignment compensation, this self-aligning thrust bearing solves common mechanical problems such as installation offset, shaft deflection and operational jitter in vertical heavy machinery. Featuring high structural rigidity, low friction coefficient and excellent shock resistance, it supports long-term cyclic heavy-thrust operation with stable precision. Different from ordinary cylindrical thrust bearings, the 89308 features a spherical raceway structure, delivering flexible self-aligning performance while retaining ultra-strong axial load capacity. It is widely adopted in medium and heavy-duty vertical transmission systems, available in two mainstream models: 89308TN nylon cage version and 89308M solid brass cage version.
89308TN Bearing (Nylon PA66 Cage)
89308TN adopts high-strength injection-molded PA66 nylon cage, serving as the universal and cost-effective standard model for conventional industrial environments. The lightweight and high-toughness nylon retainer ensures smooth and accurate roller circulation and guidance, effectively reducing running noise and frictional heat during continuous medium-load operation. With excellent anti-fatigue performance and stable lubricity, the nylon cage avoids rigid metal friction and internal component wear. It features outstanding corrosion resistance and flexible structural toughness, adapting perfectly to clean, normal-temperature and standard-load working conditions. 89308TN provides consistent low-noise operation and superior cost performance for general heavy-thrust mechanical equipment.
89308M Bearing (Solid Brass Cage)
89308M is equipped with a precision machined solid brass cage, the premium heavy-duty configuration for harsh industrial scenarios. The high-rigidity integral brass cage delivers exceptional high-temperature resistance, structural stability and impact resistance, far outperforming nylon cages under extreme working conditions. It maintains accurate roller spacing and complete structural integrity under high temperatures, frequent shock thrusts and long-duration uninterrupted operation. This design effectively prevents roller skew, structural deformation and premature fatigue wear, greatly improving bearing stability and service life. 89308M is dedicated to critical core equipment that requires zero-failure continuous heavy-load operation.
Bearing Material And Structural Advantages
All 89308 series bearings are manufactured from high-purity chrome bearing steel. After integral quenching and ultra-precision grinding, the spherical raceways and rollers achieve high surface hardness, excellent wear resistance and stable mechanical properties. The unique spherical raceway enables reliable self-aligning capability, actively compensating shaft misalignment and mechanical deflection. Dense roller arrangement ensures uniform force distribution, minimizing elastic deformation under heavy loads and guaranteeing long-term precise and stable operation of vertical mechanical systems.
Industrial Applications
89308 spherical thrust roller bearings are widely used for heavy axial load support and precision positioning in vertical industrial machinery. 89308TN is suitable for general heavy machinery, vertical gear reducers, industrial fans and conventional thrust positioning equipment. 89308M adapts to rigorous scenarios including mining auxiliary machinery, vertical grinding mills, large hydraulic systems and high-temperature processing equipment, meeting high-intensity heavy-load and anti-shock operational demands.
Product Summary: The 89308 bearing combines flexible self-aligning performance and super heavy-thrust bearing capacity. 89308TN offers stable and economical performance for standard working conditions, while 89308M provides high-temperature and anti-shock durability for harsh environments, fully covering mainstream medium and heavy-thrust industrial application scenarios.
