51209 Thrust Ball Bearings
| 51209 Thrust Ball Bearings | |||
|---|---|---|---|
| Part Number | 51209 | Weight(Kg) | 0.310 |
| d | 45 | Dynamic Load Co(N) | 48000 |
| D1 | 73 | Static Load Cor(N) | 105000 |
| B | 20 | Grease Speed | 2600 |
| R | 1 | Oil Speed | 4000 |
51209 Thrust Ball Bearing | Bearing Steel, Stainless Steel And Brass Cage
The 51209 single-direction thrust ball bearing is a heavy-duty precision axial bearing designed for low-speed industrial machinery with unidirectional axial load demands. Featuring a separable structure, flat precision raceways and high-strength steel balls, it delivers accurate axial positioning, low friction and stable long-cycle operation. This bearing effectively eliminates shaft play, reduces mechanical vibration and improves overall equipment stability. Offered in standard bearing steel and corrosion-resistant stainless steel with premium brass cages, the 51209 adapts to dry, high-temperature, humid and mildly corrosive industrial working environments.
51209 Material And Brass Cage Differences
Bearing Steel (GCr15): GCr15 bearing steel is the mainstream cost-effective material for 51209 thrust bearings. After professional heat treatment, it features high hardness, strong compression resistance and excellent anti-fatigue performance. It maintains stable load capacity and wear resistance under normal-temperature dry conditions. With stable quality and high cost performance, it is widely used for general industrial machinery, transmission systems and mass production projects.
Stainless Steel: 51209 stainless steel bearings adopt 304 sanitary grade and 440 high-hardness grade materials. They provide excellent rust resistance, oxidation resistance and weak acid-base corrosion resistance, avoiding precision failure caused by moisture, water splashes and humid air. Ideal for sanitary, damp and outdoor working scenarios, these bearings suit food machinery, medical devices, marine instruments and outdoor automation equipment.
Brass Cage: The brass cage is a high-performance retainer for heavy-duty 51209 thrust bearings. It owns high structural rigidity, strong deformation resistance and superior thermal stability, supporting continuous operation up to 250°C. Compared with ordinary nylon cages, brass cages ensure uniform steel ball movement, lower operating friction and stable performance under long-term heavy loads. It resists high-temperature aging and mechanical fatigue, perfectly fitting high-intensity harsh industrial conditions.
Core Product Advantages
The 51209 thrust ball bearing adopts a detachable modular structure for easy installation, disassembly and routine maintenance. Optimized for unidirectional axial load bearing and precise shaft limiting, it runs smoothly with low noise and vibration. Dual material options fully cover diverse industrial needs: bearing steel for economical conventional use and stainless steel for anti-rust, corrosion-resistant environments. Equipped with durable brass cages, the 51209 ensures stable pressure resistance, high precision and long service life.
Industrial Application Scenarios
51209 thrust ball bearings are widely applied for axial support, pressure bearing and limit positioning in industrial reducers, gearbox systems, hydraulic machinery, pump valve equipment and textile machinery. Bearing steel brass cage models adapt to high-temperature, heavy-load and long-cycle production lines. Stainless steel brass cage versions are ideal for food processing equipment, medical precision machinery, coastal humid facilities and outdoor automation systems, providing reliable, low-maintenance axial bearing solutions for modern industrial mechanical systems.
