Manufactured by CHG Bearing, the M270730/M270746TDJ2/M270749TJ2/M270710J2 is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 453.39 mm bore diameter, a 635 mm outer diameter, and a 496.888 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.
M270730/M270746TDJ2/M270749TJ2/M270710J2 - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | M270730/M270746TDJ2/M270749TJ2/M270710J2 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 453.39 mm |
| Width (B) | 496.888 mm |
| Outer Diameter (D) | 635 mm |
| Bore Diameter Tolerance | 0 – +0.051 mm |
| Outside Diameter Tolerance | 0 – +0.076 mm |
| Inner Ring Chamfer | 6.4 min mm |
| Outer Ring Chamfer | 1.5 min mm |
| Inner Ring Assembly Width Tolerance | -0.762 – +0.762 mm |
| Outer Ring Assembly Width | 446.088 mm |
| Outer Ring Assembly Width Tolerance | -0.762 – +0.762 mm |
| Shaft Abutment Diameter | N/A mm |
| Housing Abutment Diameter | N/A mm |
| Lubrication Hole Diameter | 15 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 9270 kN |
| Basic Static Load Rating C0 (kN) | 24400 kN |
| Material | |
| Mass (kg) | 531 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | Grade 45 Steel |
| Lubrication Groove Width | 21.338 mm |
M270730/M270746TDJ2/M270749TJ2/M270710J2 635 mm 453.39 mm 496.888 mm Frequently Asked Questions about M270730/M270746TDJ2/M270749TJ2/M270710J2 Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for M270730/M270746TDJ2/M270749TJ2/M270710J2. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
Engineered according to international ISO boundary plans, CHG Bearing supplies M270730/M270746TDJ2/M270749TJ2/M270710J2 with a precision bore diameter (d) of 453.39 mm, an outside diameter (D) of 635 mm, and a nominal ring width (B) of 496.888 mm. This configuration yields an effective cross-sectional wall thickness of 90.8 mm and an envelope ratio (D/d) of 1.4, delivering compact rigidity for OEM machinery housings.
Built for demanding industrial environments, the M270730/M270746TDJ2/M270749TJ2/M270710J2 Four-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.
To ensure optimum performance of CHG Bearing M270730/M270746TDJ2/M270749TJ2/M270710J2 Four-Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 453.39 mm bore. For the 635 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
