81218 Cylindrical Roller Thrust Bearings
| 81218 Cylindrical Roller Thrust Bearings | |||
|---|---|---|---|
| Part Number | 81218 | Weight(Kg) | 1.5 |
| d | 90 | Dynamic Load Co(N) | 228000 |
| D1 | 135 | Static Load Cor(N) | 900000 |
| B | 35 | Grease Speed | 950 |
| R | 1.1 | Oil Speed | 1800 |
81218 Thrust Ball Bearing | M / TN Types Available
The 81218 thrust ball bearing is a high-precision single-direction thrust ball bearing built for pure axial load operation. Featuring high structural rigidity, low friction and stable axial positioning, it delivers consistent, low-noise performance for low and medium-speed industrial machinery. Supplied in 81218M and 81218TN cage types, this bearing provides durable, cost-effective thrust support for general industrial transmission systems.
81218 M / TN Type Differences
81218M: Features a solid machined brass cage with high rigidity, superior heat resistance and strong impact resistance. It withstands long-term continuous operation with minimal wear, perfectly suited for heavy-load, high-temperature and harsh industrial working conditions.
81218TN: Equipped with a lightweight nylon TN cage with low friction and quiet rotation. It offers reliable anti-fatigue performance and excellent cost efficiency, ideal for medium-speed, clean working environments with standard axial load requirements.
Material Introduction
Bearing Steel (GCr15): Standard 81218 thrust ball bearings adopt premium GCr15 high-carbon chromium bearing steel. With professional heat treatment, steel balls and raceways achieve high hardness, outstanding wear resistance and stable fatigue resistance, ensuring long-term stable operation under continuous axial loads.
Stainless Steel (Optional): Custom stainless steel 81218 bearings provide excellent rust-proof, anti-oxidation and weak corrosion resistance. They adapt well to humid, dusty and sanitary working scenarios, effectively preventing premature bearing failure and extending service life.
Product Features
Reliable single-direction pure axial load capacity. Accurate axial positioning with low running noise. Two cage designs fit different speed and load conditions. High hardness and wear resistance extend service life. Compact structure saves installation space with high cost performance.
Application Scenarios
81218 thrust ball bearings are widely used in hydraulic systems, industrial gearboxes, ventilation fans, textile machinery, printing equipment and general mechanical transmissions. 81218M is ideal for heavy-load and harsh environments; 81218TN suits medium-speed, low-noise and cost-sensitive equipment. Stainless steel versions apply to humid and sanitary working conditions.
