81220 Cylindrical Roller Thrust Bearings
| 81220 Cylindrical Roller Thrust Bearings | |||
|---|---|---|---|
| Part Number | 81120 | Weight(Kg) | 1.95 |
| d | 100 | Dynamic Load Co(N) | 270000 |
| D1 | 150 | Static Load Cor(N) | 1080000 |
| B | 38 | Grease Speed | 850 |
| R | 1.5 | Oil Speed | 1600 |
81220 Thrust Ball Bearing | M / TN Types Available
The 81220 thrust ball bearing is a high-precision single-direction thrust ball bearing designed for pure axial load operation. It features high rigidity, low friction and stable axial positioning, delivering steady and low-noise performance for low to medium-speed industrial machinery. Available in 81220M and 81220TN cage types, this bearing offers durable and cost-effective thrust support for various industrial mechanical transmission systems.
81220 M / TN Type Differences
81220M: Adopts a solid machined brass cage with high structural rigidity, excellent heat resistance and strong impact resistance. It supports long-term continuous operation with ultra-low wear, perfectly suitable for heavy-load, high-temperature and harsh industrial working conditions.
81220TN: Equipped with a lightweight nylon TN cage with low friction coefficient and quiet rotation. It provides stable anti-fatigue performance and high cost performance, ideal for medium-speed, clean and stable working environments with standard axial load demands.
Material Introduction
Bearing Steel (GCr15): Standard 81220 thrust ball bearings adopt premium GCr15 high-carbon chromium bearing steel. After professional heat treatment, steel balls and raceways obtain high hardness, outstanding wear resistance and stable fatigue resistance, ensuring long-term precise and stable operation under continuous axial loads.
Stainless Steel (Optional): Custom stainless steel 81220 bearings feature excellent rust-proof, anti-oxidation and weak corrosion resistance. They adapt well to humid, dusty and sanitary working scenarios, effectively avoiding premature bearing failure and extending overall service life.
Product Features
Stable single-direction pure axial load capacity. High-precision axial positioning with low operating noise. Two cage designs meet diverse speed and load requirements. Superior hardness and wear resistance prolong service life. Compact structure saves installation space with excellent cost performance.
Application Scenarios
81220 thrust ball bearings are widely applied in hydraulic systems, industrial gearboxes, ventilation fans, textile machinery, printing equipment and general mechanical transmissions. 81220M suits heavy-load and harsh working environments; 81220TN fits medium-speed, low-noise and cost-sensitive equipment. Stainless steel versions apply to humid and sanitary industrial conditions.
