Manufactured by CHG Bearing, the BT4-8031E/C800 is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 625 mm bore diameter, a 815 mm outer diameter, and a 480 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.
BT4-8031E/C800 - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | BT4-8031E/C800 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 625 mm |
| Width (B) | 480 mm |
| Outer Diameter (D) | 815 mm |
| Bore Diameter Tolerance | -0.050 – 0 mm |
| Outside Diameter Tolerance | -0.100 – 0 mm |
| Inner Ring Chamfer | 3 min mm |
| Outer Ring Chamfer | 5 min mm |
| Inner Ring Assembly Width Tolerance | -1 – +1 mm |
| Outer Ring Assembly Width | 480 mm |
| Outer Ring Assembly Width Tolerance | -1 – +1 mm |
| Shaft Abutment Diameter | 653 mm |
| Housing Abutment Diameter | 769 mm |
| Lubrication Hole Diameter | 11 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 8870 kN |
| Basic Static Load Rating C0 (kN) | 30400 kN |
| Material | |
| Mass (kg) | 659 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | Grade 45 Steel / 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 28 mm |
BT4-8031E/C800 815 mm 625 mm 480 mm Frequently Asked Questions about BT4-8031E/C800 Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Each BT4-8031E/C800 produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (625 mm bore side) ensures perfect planar contact without edge binding.
Absolutely. The CHG Bearing BT4-8031E/C800 Four-Row Tapered Roller Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF BT4-8031E/C800, FAG BT4-8031E/C800, NSK BT4-8031E/C800. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
To ensure optimum performance of CHG Bearing BT4-8031E/C800 Four-Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 625 mm bore. For the 815 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 BT4-8031E/C800 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.
