Manufactured by CHG Bearing, the M270730/M270746TDJ2/M270749TJ2/M270710J2P5 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/M270710J2P5 - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | M270730/M270746TDJ2/M270749TJ2/M270710J2P5 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 453.39 mm |
| Width (B) | 496.888 mm |
| Outer Diameter (D) | 635 mm |
| Bore Diameter Tolerance | 0 – +0.025 mm |
| Outside Diameter Tolerance | 0 – +0.038 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/M270710J2P5 635 mm 453.39 mm 496.888 mm Frequently Asked Questions about M270730/M270746TDJ2/M270749TJ2/M270710J2P5 Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Model M270730/M270746TDJ2/M270749TJ2/M270710J2P5 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 453.39 mm) and steep thermal gradients between inner and outer rings.
As standard production, CHG Bearing subjects M270730/M270746TDJ2/M270749TJ2/M270710J2P5 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.
The Open Type engineered for M270730/M270746TDJ2/M270749TJ2/M270710J2P5 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.
Built for demanding industrial environments, the M270730/M270746TDJ2/M270749TJ2/M270710J2P5 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.
