Manufactured by CHG Bearing, the 81280 is a precision Cylindrical Roller Thrust Bearings. Key dimensional parameters include a 400 mm bore diameter, a 540 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.
81280 - Cylindrical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 81280 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Cylindrical Roller Thrust Bearing |
| Design Type | Single Direction |
| Load Direction | Axial |
| Dimensions | |
| Bore Diameter (d) | 400 mm |
| Outer Diameter (D) | 540 mm |
| Minimum Chamfer Dimension rmin | 4 mm |
| Overall Height H | 112 mm |
| Inner-Ring Land Diameter (L1 / d1) | 405 mm |
| Outer-Ring Land Diameter (L2 / D1) | 535 mm |
| Performance | |
| Limiting Speed – Grease (r/min) | 170 r/min |
| Limiting Speed – Oil-air (r/min) | 240 r/min |
| Basic Static Axial Load Rating C0a (N) | 10080 N |
| Basic Dynamic Axial Load Rating Ca (N) | 2010 N |
| Material | |
| Mass (kg) | 73 kg |
81280 540 mm 535 mm 400 mm 405 mm Frequently Asked Questions about 81280 Cylindrical Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, 100% of 81280 Cylindrical Roller Thrust 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.
For international ocean and air freight, CHG Bearing packs 81280 with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
As standard production, CHG Bearing subjects 81280 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.
Quality starts with raw material selection: CHG Bearing crafts 81280 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.
