Manufactured by CHG Bearing, the 81268 is a precision Cylindrical 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.
81268 - Cylindrical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 81268 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Cylindrical Roller Thrust Bearing |
| Design Type | Single Direction |
| Load Direction | Axial |
| Dimensions | |
| Bore Diameter (d) | 340 mm |
| Outer Diameter (D) | 460 mm |
| Minimum Chamfer Dimension rmin | 3 mm |
| Overall Height H | 96 mm |
| Inner-Ring Land Diameter (L1 / d1) | 345 mm |
| Outer-Ring Land Diameter (L2 / D1) | 455 mm |
| Performance | |
| Limiting Speed – Grease (r/min) | 200 r/min |
| Limiting Speed – Oil-air (r/min) | 300 r/min |
| Basic Static Axial Load Rating C0a (N) | 7200 N |
| Basic Dynamic Axial Load Rating Ca (N) | 1467 N |
| Material | |
| Mass (kg) | 47 kg |
81268 460 mm 455 mm 340 mm 345 mm Frequently Asked Questions about 81268 Cylindrical 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 81268 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.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 81268 correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
Each 81268 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies 81268 with a precision bore diameter (d) of 340 mm, an outside diameter (D) of 460 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.
