51306 Thrust Ball Bearings

51306 Thrust Ball Bearings
Part Number 51306 Weight(Kg) 0.267
d 30 Dynamic Load Co(N) 42500
D1 60 Static Load Cor(N) 78500
B 21 Grease Speed 2800
R 1 Oil Speed 4200

51306 Thrust Ball Bearing | Bearing Steel, Stainless Steel And Brass Cage

The 51306 single-direction thrust ball bearing is a medium-heavy load axial bearing designed for low-speed industrial machinery. With a separable structure, thickened raceways and precision steel balls, it provides accurate axial positioning, low friction and stable long-term operation. This bearing effectively eliminates shaft play, reduces mechanical vibration and improves overall equipment stability. Available in bearing steel and corrosion-resistant stainless steel grades with premium brass cages, the 51306 suits dry, high-temperature, humid and mildly corrosive industrial working conditions.

51306 Material And Brass Cage Differences

Bearing Steel (GCr15): GCr15 bearing steel is the standard cost-effective material for 51306 thrust bearings. After professional heat treatment, it delivers high hardness, strong pressure resistance and excellent fatigue resistance. It maintains stable load capacity and wear resistance under normal temperature and dry working environments. Featuring consistent quality and high cost performance, it is widely used for general industrial machinery and standard transmission systems.

Stainless Steel: 51306 stainless steel bearings adopt 304 sanitary and 440 high-hardness materials. They offer excellent rust-proof, oxidation and weak corrosion resistance against moisture, water splash and humid air. This avoids precision failure in damp and sterile environments, making them ideal for food machinery, medical equipment, marine instruments and outdoor automation devices.

Brass Cage: The brass cage is a high-performance retainer for 51306 heavy-duty thrust bearings. It provides high rigidity, strong deformation resistance and great thermal stability, supporting continuous operation up to 250°C. Different from ordinary nylon cages, brass cages ensure even steel ball movement, lower operating friction and stable performance under long-cycle heavy loads. It resists high-temperature aging and mechanical fatigue, suitable for harsh and high-intensity industrial applications.

Core Product Advantages

The 51306 thrust ball bearing features a detachable modular structure for easy installation, removal and routine maintenance. Optimized for unidirectional axial load bearing and precise shaft limiting, it runs smoothly with low noise and vibration. Dual material options cover full industrial scenarios: bearing steel for economical general use and stainless steel for anti-rust, corrosion-resistant working conditions. Equipped with durable brass cages, the 51306 offers stable pressure resistance, high precision and long service life.

Industrial Application Scenarios

51306 thrust ball bearings are commonly used for axial support, pressure bearing and limit positioning in industrial reducers, gearboxes, hydraulic machinery, pump valves and textile equipment. Bearing steel brass cage models fit high-temperature, heavy-load and long-running production lines. Stainless steel brass cage versions are ideal for food processing machinery, medical precision equipment, coastal humid facilities and outdoor automation, delivering reliable and low-maintenance axial bearing solutions for modern industrial machinery.

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