Manufactured by CHG Bearing, the 8573TD/8520 is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 228.6 mm bore diameter, a 327.025 mm outer diameter, and a 93.663 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.
8573TD/8520 - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 8573TD/8520 |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 3 |
| Dimensions | |
| Bore Diameter (d) | 228.6 mm |
| Width (B) | 93.663 mm |
| Outer Diameter (D) | 327.025 mm |
| Bore Diameter Tolerance | 0 – +0.013 mm |
| Outside Diameter Tolerance | 0 – +0.025 mm |
| Inner Ring Chamfer | 3.2 mm |
| Outer Ring Chamfer | 1.6 mm |
| Inner Ring Assembly Width Tolerance | -0.406 – +0.406 mm |
| Outer Ring Assembly Width | 93.663 mm |
| Outer Ring Assembly Width Tolerance | -0.406 – +0.406 mm |
| Shaft Abutment Diameter | 255.5 mm |
| Housing Abutment Diameter | 314.6 mm |
| Lubrication Hole Diameter | 6 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 802 kN |
| Basic Static Load Rating C0 (kN) | 1860 kN |
| Material | |
| Mass (kg) | 25.9 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 12 mm |
| Roller Material | Bearing Steel |
8573TD/8520 327.025 mm 228.6 mm Frequently Asked Questions about 8573TD/8520 Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To ensure optimum performance of CHG Bearing 8573TD/8520 Double Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 228.6 mm bore. For the 327.025 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 8573TD/8520 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.
Absolutely. The CHG Bearing 8573TD/8520 Double Row Tapered Roller Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 8573TD/8520, FAG 8573TD/8520, NSK 8573TD/8520. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Standard batches of CHG Bearing 8573TD/8520 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.
