Manufactured by CHG Bearing, the 2TR785A is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 785 mm bore diameter, a 1150 mm outer diameter, and a 285 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.
2TR785A - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 2TR785A |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 785 mm |
| Width (B) | 285 mm |
| Outer Diameter (D) | 1150 mm |
| Bore Diameter Tolerance | -0.05 – 0 mm |
| Outside Diameter Tolerance | -0.1 – 0 mm |
| Inner Ring Chamfer | 6 mm |
| Outer Ring Chamfer | 6 mm |
| Inner Ring Assembly Width Tolerance | -0.50 – 0 mm |
| Outer Ring Assembly Width | 195 mm |
| Outer Ring Assembly Width Tolerance | -0.50 – 0 mm |
| Shaft Abutment Diameter | 622 mm |
| Housing Abutment Diameter | 792 mm |
| Lubrication Hole Diameter | 11 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 4080 kN |
| Basic Static Load Rating C0 (kN) | 8560 kN |
| Material | |
| Mass (kg) | 344 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 28 mm |
| Roller Material | Case-Hardened Steel / Bearing Steel |
2TR785A 1150 mm 785 mm Frequently Asked Questions about 2TR785A Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting 2TR785A over a 785 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.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 2TR785A correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
For international ocean and air freight, CHG Bearing packs 2TR785A with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
Beyond standard alloy steel, CHG Bearing can customize the 2TR785A Double Row Tapered Roller Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
