Manufactured by CHG Bearing, the 2TR900 is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 900 mm bore diameter, a 1220 mm outer diameter, and a 340 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.
2TR900 - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 2TR900 |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 900 mm |
| Width (B) | 340 mm |
| Outer Diameter (D) | 1220 mm |
| Bore Diameter Tolerance | -0.05 – 0 mm |
| Outside Diameter Tolerance | -0.1 – 0 mm |
| Inner Ring Chamfer | 7.5 mm |
| Outer Ring Chamfer | 7.5 mm |
| Inner Ring Assembly Width Tolerance | -0.50 – 0 mm |
| Outer Ring Assembly Width | 280 mm |
| Outer Ring Assembly Width Tolerance | -0.50 – 0 mm |
| Shaft Abutment Diameter | 647 mm |
| Housing Abutment Diameter | 884 mm |
| Lubrication Hole Diameter | 12 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 7480 kN |
| Basic Static Load Rating C0 (kN) | 15500 kN |
| Material | |
| Mass (kg) | 754 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 30 mm |
| Roller Material | Case-Hardened Steel / Bearing Steel |
2TR900 1220 mm 900 mm Frequently Asked Questions about 2TR900 Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Model 2TR900 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 900 mm) and steep thermal gradients between inner and outer rings.
To safeguard CHG Bearing 2TR900 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (900 mm x 1220 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
To ensure optimum performance of CHG Bearing 2TR900 Double Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 900 mm bore. For the 1220 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
In its sealed configuration (Open Type), CHG Bearing pre-charges 2TR900 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.
