51112 Thrust Ball Bearings

51112 Thrust Ball Bearing | Bearing Steel, Stainless Steel And Brass Cage

The 51112 single-direction thrust ball bearing is a compact high-precision axial bearing designed to withstand unidirectional pure axial loads for medium and heavy-duty industrial machinery. Featuring a separable structure, flat raceways and precision steel balls, this bearing delivers accurate axial positioning, low friction and stable low-speed continuous operation. It effectively eliminates shaft axial play, reduces mechanical vibration and improves equipment operational stability. Available in durable bearing steel and corrosion-resistant stainless steel, paired with high-rigidity brass cages, the 51112 adapts to dry, high-temperature, humid and mildly corrosive working conditions for diverse industrial applications.

51112 Material and Brass Cage Differences

Bearing Steel (GCr15): GCr15 bearing steel is the standard economical material for 51112 thrust bearings. With professional heat treatment, it achieves high hardness, excellent compression resistance and stable anti-fatigue performance. It maintains reliable wear resistance and load capacity in normal-temperature dry indoor environments. Featuring high cost performance and stable quality, bearing steel 51112 bearings are ideal for general industrial equipment, conventional transmission systems and mass production projects.

Stainless Steel: Stainless steel 51112 bearings adopt 304 sanitary grade and 440 high-hardness grade materials. They deliver excellent rust resistance, oxidation resistance and weak corrosion tolerance, effectively preventing precision failure caused by moisture, water splashes and light acid and alkali erosion. This material variant suits humid, sterile and outdoor working scenarios, widely used in food machinery, medical equipment, marine instruments and outdoor automation devices.

Brass Cage: The brass cage is a high-performance retainer for 51112 thrust bearings. It features high structural rigidity, strong deformation resistance and superior thermal stability, supporting long-term operation at up to 250°C. Different from ordinary nylon cages, brass cages guide steel balls evenly, reduce operational friction and avoid jamming under heavy loads and continuous working cycles. It resists high-temperature aging and mechanical fatigue, perfectly fitting harsh and high-intensity industrial working environments.

Core Product Advantages

The 51112 thrust ball bearing adopts a detachable modular structure for easy installation, disassembly and maintenance. Specialized in unidirectional axial load bearing and precise limit positioning, it runs stably with low vibration and low noise. Dual material options cover full industrial scenarios: bearing steel for cost-effective conventional use and stainless steel for anti-rust and anti-corrosion demands. Equipped with premium brass cages, the 51112 features stable pressure resistance, high precision and long service life, meeting standard industrial precision requirements.

Industrial Application Scenarios

51112 thrust ball bearings are widely used for axial support, pressure bearing and limit positioning in industrial reducers, gearboxes, hydraulic machinery, pump and valve equipment, textile and printing machinery. Bearing steel with brass cage models are suitable for high-temperature, heavy-load and long-running production lines. Stainless steel brass cage versions are preferred for food processing, medical precision machinery, coastal humid equipment and outdoor automation systems, providing reliable, low-maintenance axial bearing solutions for modern industrial mechanical systems.