Manufactured by CHG Bearing, the M275349TD/M275310 is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 519.113 mm bore diameter, a 736.6 mm outer diameter, and a 258.763 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.

M275349TD/M275310 - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | M275349TD/M275310 |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 3 |
| Dimensions | |
| Bore Diameter (d) | 519.113 mm |
| Width (B) | 258.763 mm |
| Outer Diameter (D) | 736.6 mm |
| Bore Diameter Tolerance | 0 – +0.025 mm |
| Outside Diameter Tolerance | 0 – +0.038 mm |
| Inner Ring Chamfer | 6.4 mm |
| Outer Ring Chamfer | 3.2 mm |
| Inner Ring Assembly Width Tolerance | -0.406 – +0.406 mm |
| Outer Ring Assembly Width | 258.763 mm |
| Outer Ring Assembly Width Tolerance | -0.406 – +0.406 mm |
| Shaft Abutment Diameter | 560 mm |
| Housing Abutment Diameter | 710 mm |
| Lubrication Hole Diameter | 10 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 5290 kN |
| Basic Static Load Rating C0 (kN) | 13600 kN |
| Material | |
| Mass (kg) | 361 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 24 mm |
| Roller Material | Case-Hardened Steel / Bearing Steel |
M275349TD/M275310 736.6 mm 519.113 mm Frequently Asked Questions about M275349TD/M275310 Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To extend the trouble-free lifespan of CHG Bearing M275349TD/M275310, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
Sourcing M275349TD/M275310 directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Double Row Tapered Roller Bearings.
In its sealed configuration (Open Type), CHG Bearing pre-charges M275349TD/M275310 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
Engineered according to international ISO boundary plans, CHG Bearing supplies M275349TD/M275310 with a precision bore diameter (d) of 519.113 mm, an outside diameter (D) of 736.6 mm, and a nominal ring width (B) of 258.763 mm. This configuration yields an effective cross-sectional wall thickness of 108.7 mm and an envelope ratio (D/d) of 1.42, delivering compact rigidity for OEM machinery housings.
