Manufactured by CHG Bearing, the 51264 is a precision Thrust Ball Bearings. Key dimensional parameters include a 320 mm bore diameter, a 440 mm outer diameter, and a mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
51264 - Thrust Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 51264 |
| Brand | CHG® |
| Construction | Angular Contact Thrust Ball Bearing |
| Type | Double-Direction Angular Contact Thrust Ball Bearing |
| Characteristics | |
| Load Direction | Axial — Double Direction |
| Limiting Speed — Grease (r/min) | 600 r/min |
| Limiting Speed — Oil (r/min) | 850 r/min |
| Dimensions | |
| Bore Diameter (d) | 320 mm |
| Outer Diameter (D) | 440 mm |
| Contact Angle α (°) | N/A ° |
| Chamfer Dimension r (min.) | 4 mm |
| Dimension A | N/A mm |
| Bearing Height T | 164 mm |
| Dimension d1 | N/A mm |
| Dimension D12 | N/A mm |
| Dimension C | 82 mm |
| Dimension B | 41 mm |
| Chamfer Dimension r1 (min.) | 1.5 mm |
| Performance | |
| Basic Dynamic Axial Load Rating Ca (kN) | 495 kN |
| Basic Static Axial Load Rating C0a (kN) | 2700 kN |
| Material | |
| Mass (kg) | 91.5 kg |
51264 440 mm 320 mm 164 mm Frequently Asked Questions about 51264 Thrust Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Each 51264 produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (320 mm bore side) ensures perfect planar contact without edge binding.
Quality starts with raw material selection: CHG Bearing crafts 51264 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
Yes, 100% of 51264 Thrust Ball Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
As standard production, CHG Bearing subjects 51264 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
