Manufactured by CHG Bearing, the 81575/81963D is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 146.05 mm bore diameter, a 244.475 mm outer diameter, and a 107.95 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.
81575/81963D - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 81575/81963D |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 146.05 mm |
| Width (B) | 107.95 mm |
| Outer Diameter (D) | 244.475 mm |
| Bore Diameter Tolerance | -0.025 – 0 mm |
| Outside Diameter Tolerance | -0.028 – 0 mm |
| Inner Ring Chamfer | 4 min mm |
| Outer Ring Chamfer | 4 min mm |
| Inner Ring Assembly Width Tolerance | -0.35 – 0 mm |
| Outer Ring Assembly Width | 107 mm |
| Outer Ring Assembly Width Tolerance | -0.70 – +0.70 mm |
| Shaft Abutment Diameter | N/A mm |
| Housing Abutment Diameter | N/A mm |
| Lubrication Hole Diameter | 10 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1150 kN |
| Basic Static Load Rating C0 (kN) | 2590 kN |
| Material | |
| Mass (kg) | 43.1 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 17 mm |
| Roller Material | Bearing Steel |
81575/81963D 244.475 mm 146.05 mm Frequently Asked Questions about 81575/81963D Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Built for demanding industrial environments, the 81575/81963D Double Row Tapered Roller 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.
The Open Type engineered for 81575/81963D by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
The CHG Bearing 81575/81963D 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.
Beyond standard alloy steel, CHG Bearing can customize the 81575/81963D Double Row Tapered Roller Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
