Manufactured by CHG Bearing, the 2TR400 is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 400 mm bore diameter, a 650 mm outer diameter, and a 240 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.
2TR400 - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 2TR400 |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 400 mm |
| Width (B) | 240 mm |
| Outer Diameter (D) | 650 mm |
| Bore Diameter Tolerance | -0.04 – 0 mm |
| Outside Diameter Tolerance | -0.05 – 0 mm |
| Inner Ring Chamfer | 5 mm |
| Outer Ring Chamfer | 6 mm |
| Inner Ring Assembly Width Tolerance | -0.40 – 0 mm |
| Outer Ring Assembly Width | 148 mm |
| Outer Ring Assembly Width Tolerance | -0.50 – 0 mm |
| Shaft Abutment Diameter | 452 mm |
| Housing Abutment Diameter | 578 mm |
| Lubrication Hole Diameter | 8 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 2410 kN |
| Basic Static Load Rating C0 (kN) | 4960 kN |
| Material | |
| Mass (kg) | 143 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 16 mm |
| Roller Material | Case-Hardened Steel / Bearing Steel |
2TR400 650 mm 400 mm Frequently Asked Questions about 2TR400 Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting 2TR400 over a 400 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
Standard batches of CHG Bearing 2TR400 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
To safeguard CHG Bearing 2TR400 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (400 mm x 650 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
The CHG Bearing 2TR400 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
