Manufactured by CHG Bearing, the 81284 is a precision Cylindrical Roller Thrust Bearings. Key dimensional parameters include a 420 mm bore diameter, a 580 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.
81284 - Cylindrical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 81284 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Cylindrical Roller Thrust Bearing |
| Design Type | Single Direction |
| Load Direction | Axial |
| Dimensions | |
| Bore Diameter (d) | 420 mm |
| Outer Diameter (D) | 580 mm |
| Minimum Chamfer Dimension rmin | 5 mm |
| Overall Height H | 130 mm |
| Inner-Ring Land Diameter (L1 / d1) | 425 mm |
| Outer-Ring Land Diameter (L2 / D1) | 575 mm |
| Performance | |
| Limiting Speed – Grease (r/min) | 160 r/min |
| Limiting Speed – Oil-air (r/min) | 220 r/min |
| Basic Static Axial Load Rating C0a (N) | 12600 N |
| Basic Dynamic Axial Load Rating Ca (N) | 2505 N |
| Material | |
| Mass (kg) | 95.5 kg |
81284 580 mm 575 mm 420 mm 425 mm Frequently Asked Questions about 81284 Cylindrical Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As standard production, CHG Bearing subjects 81284 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.
Built for demanding industrial environments, the 81284 Cylindrical Roller Thrust Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
In its sealed configuration (Open Type), CHG Bearing pre-charges 81284 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.
Every production batch of CHG Bearing 81284 Cylindrical Roller Thrust Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
