Manufactured by CHG Bearing, the 811/670 is a precision Cylindrical Roller Thrust Bearings. Key dimensional parameters include a 670 mm bore diameter, a 800 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.
811/670 - Cylindrical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 811/670 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Cylindrical Roller Thrust Bearing |
| Design Type | Single Direction |
| Load Direction | Axial |
| Dimensions | |
| Bore Diameter (d) | 670 mm |
| Outer Diameter (D) | 800 mm |
| Minimum Chamfer Dimension rmin | 4 mm |
| Overall Height H | 105 mm |
| Inner-Ring Land Diameter (L1 / d1) | 675 mm |
| Outer-Ring Land Diameter (L2 / D1) | 795 mm |
| Performance | |
| Limiting Speed – Grease (r/min) | 150 r/min |
| Limiting Speed – Oil-air (r/min) | 200 r/min |
| Basic Static Axial Load Rating C0a (N) | 16300 N |
| Basic Dynamic Axial Load Rating Ca (N) | 2550 N |
| Material | |
| Mass (kg) | 110 kg |
811/670 800 mm 795 mm 670 mm 675 mm Frequently Asked Questions about 811/670 Cylindrical Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As standard production, CHG Bearing subjects 811/670 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.
Model 811/670 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 670 mm) and steep thermal gradients between inner and outer rings.
Standard batches of CHG Bearing 811/670 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
To extend the trouble-free lifespan of CHG Bearing 811/670, 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.
