Manufactured by CHG Bearing, the 799/792D is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 128.588 mm bore diameter, a 206.375 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.
799/792D - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 799/792D |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 128.588 mm |
| Width (B) | 107.95 mm |
| Outer Diameter (D) | 206.375 mm |
| Bore Diameter Tolerance | -0.04 – 0 mm |
| Outside Diameter Tolerance | -0.075 – 0 mm |
| Inner Ring Chamfer | 6 mm |
| Outer Ring Chamfer | 5 mm |
| Inner Ring Assembly Width Tolerance | -0.40 – 0 mm |
| Outer Ring Assembly Width | 240 mm |
| Outer Ring Assembly Width Tolerance | -0.50 – 0 mm |
| Shaft Abutment Diameter | 449 mm |
| Housing Abutment Diameter | 622 mm |
| Lubrication Hole Diameter | 9 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 3830 kN |
| Basic Static Load Rating C0 (kN) | 8260 kN |
| Material | |
| Mass (kg) | 290 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 20 mm |
| Roller Material | Bearing Steel |
799/792D 206.375 mm 128.588 mm Frequently Asked Questions about 799/792D Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To ensure optimum performance of CHG Bearing 799/792D Double Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 128.588 mm bore. For the 206.375 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
To safeguard CHG Bearing 799/792D against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (128.588 mm x 206.375 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
As standard production, CHG Bearing subjects 799/792D 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies 799/792D with a precision bore diameter (d) of 128.588 mm, an outside diameter (D) of 206.375 mm, and a nominal ring width (B) of 107.95 mm. This configuration yields an effective cross-sectional wall thickness of 38.9 mm and an envelope ratio (D/d) of 1.6, delivering compact rigidity for OEM machinery housings.
