Manufactured by CHG Bearing, the 812/670 is a precision Cylindrical Roller Thrust Bearings. Key dimensional parameters include a 670 mm bore diameter, a 900 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.
812/670 - Cylindrical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 812/670 |
| 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) | 900 mm |
| Minimum Chamfer Dimension rmin | 6 mm |
| Overall Height H | 180 mm |
| Inner-Ring Land Diameter (L1 / d1) | 678 mm |
| Outer-Ring Land Diameter (L2 / D1) | 892 mm |
| Performance | |
| Limiting Speed – Grease (r/min) | 95 r/min |
| Limiting Speed – Oil-air (r/min) | 140 r/min |
| Basic Static Axial Load Rating C0a (N) | 27450 N |
| Basic Dynamic Axial Load Rating Ca (N) | 5130 N |
| Material | |
| Mass (kg) | 335 kg |
812/670 900 mm 892 mm 670 mm 678 mm Frequently Asked Questions about 812/670 Cylindrical Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To match diverse operational dynamics, CHG Bearing supplies 812/670 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
To ensure optimum performance of CHG Bearing 812/670 Cylindrical Roller Thrust Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 670 mm bore. For the 900 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 812/670. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
To extend the trouble-free lifespan of CHG Bearing 812/670, 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.
