Manufactured by CHG Bearing, the 51268 is a precision Tapered Roller Thrust Bearings. Key dimensional parameters include a 340 mm bore diameter, a 460 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.
51268 - Tapered Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 51268 |
| Brand | CHG® |
| Construction | Thrust Ball Bearing |
| Type | Single-Direction Thrust Ball Bearing |
| Characteristics | |
| Load Direction | Axial — Single Direction |
| Limiting Speed — Grease (r/min) | 320 r/min |
| Limiting Speed — Oil (r/min) | 450 r/min |
| Dimensions | |
| Bore Diameter (d) | 340 mm |
| Outer Diameter (D) | 460 mm |
| Contact Angle α (°) | N/A ° |
| Chamfer Dimension r (min.) | 3 mm |
| Dimension A | N/A mm |
| Bearing Height T | 96 mm |
| Dimension d1 | 345 mm |
| Dimension D12 | 455 mm |
| Dimension C | N/A mm |
| Dimension B | N/A mm |
| Chamfer Dimension r1 (min.) | N/A mm |
| Performance | |
| Basic Dynamic Axial Load Rating Ca (kN) | 620 kN |
| Basic Static Axial Load Rating C0a (kN) | 3040 kN |
| Material | |
| Mass (kg) | 45 kg |
51268 mm 460 mm 340 mm 345 mm 96 mm Frequently Asked Questions about 51268 Tapered Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open Type), CHG Bearing pre-charges 51268 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
The CHG Bearing 51268 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
To extend the trouble-free lifespan of CHG Bearing 51268, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
Each 51268 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 (340 mm bore side) ensures perfect planar contact without edge binding.
