Manufactured by CHG Bearing, the 81256 is a precision Cylindrical Roller Thrust Bearings. Key dimensional parameters include a 280 mm bore diameter, a 380 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.
81256 - Cylindrical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 81256 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Cylindrical Roller Thrust Bearing |
| Design Type | Single Direction |
| Load Direction | Axial |
| Dimensions | |
| Bore Diameter (d) | 280 mm |
| Outer Diameter (D) | 380 mm |
| Minimum Chamfer Dimension rmin | 2 mm |
| Overall Height H | 80 mm |
| Inner-Ring Land Diameter (L1 / d1) | 284 mm |
| Outer-Ring Land Diameter (L2 / D1) | 375 mm |
| Performance | |
| Limiting Speed – Grease (r/min) | 260 r/min |
| Limiting Speed – Oil-air (r/min) | 360 r/min |
| Basic Static Axial Load Rating C0a (N) | 4950 N |
| Basic Dynamic Axial Load Rating Ca (N) | 1044 N |
| Material | |
| Mass (kg) | 26 kg |
81256 380 mm 375 mm 280 mm 284 mm Frequently Asked Questions about 81256 Cylindrical Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Sourcing 81256 directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Cylindrical Roller Thrust Bearings.
Each 81256 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 (280 mm bore side) ensures perfect planar contact without edge binding.
Engineered according to international ISO boundary plans, CHG Bearing supplies 81256 with a precision bore diameter (d) of 280 mm, an outside diameter (D) of 380 mm, and a nominal ring width (B) of mm. This configuration yields an effective cross-sectional wall thickness of 0 mm and an envelope ratio (D/d) of 0, delivering compact rigidity for OEM machinery housings.
Built for demanding industrial environments, the 81256 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.
