Manufactured by CHG Bearing, the 891/670 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.
891/670 - Cylindrical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 891/670 |
| 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 | 78 mm |
| Inner-Ring Land Diameter (L1 / d1) | 675 mm |
| Outer-Ring Land Diameter (L2 / D1) | 795 mm |
| Performance | |
| Limiting Speed – Grease (r/min) | 160 r/min |
| Limiting Speed – Oil-air (r/min) | 220 r/min |
| Basic Static Axial Load Rating C0a (N) | 12060 N |
| Basic Dynamic Axial Load Rating Ca (N) | 1800 N |
| Material | |
| Mass (kg) | 75.5 kg |
891/670 800 mm 795 mm 670 mm 675 mm Frequently Asked Questions about 891/670 Cylindrical Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing 891/670 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 891/670 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.
Every production batch of CHG Bearing 891/670 Cylindrical Roller Thrust Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
For international ocean and air freight, CHG Bearing packs 891/670 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.
