Manufactured by CHG Bearing, the 30256XP5 is a precision Single Row Tapered Roller Bearings. Key dimensional parameters include a 280 mm bore diameter, a 420 mm outer diameter, and a N/A 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.
30256XP5 - Single Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 30256XP5 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Single Row Tapered Roller Bearing |
| Number of Rows | Single Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 280 mm |
| Width (B) | N/A mm |
| Outer Diameter (D) | 420 mm |
| Outer Ring Width C | 65 mm |
| Bore Diameter Tolerance | -0.025 – 0 mm |
| Outside Diameter Tolerance | -0.033 – 0 mm |
| Inner Ring Chamfer | 5 min mm |
| Outer Ring Chamfer | 4 min mm |
| Shaft Abutment Diameter | N/A mm |
| Housing Abutment Diameter | N/A mm |
| Overall Bearing Width Tolerance | N/A mm |
| Inner Ring Width B | 87 mm |
| Inner Ring Width Tolerance | -0.70 – 0 mm |
| Outer Ring Width Tolerance | -0.70 – 0 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1170 kN |
| Basic Static Load Rating C0 (kN) | 2230 kN |
| Material | |
| Mass (kg) | 40.4 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel |
30256XP5 420 mm 280 mm N/A mm Frequently Asked Questions about 30256XP5 Single Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting 30256XP5 over a 280 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.
In its sealed configuration (Open Type), CHG Bearing pre-charges 30256XP5 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.
Every production batch of CHG Bearing 30256XP5 Single Row Tapered Roller Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
To ensure optimum performance of CHG Bearing 30256XP5 Single Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 280 mm bore. For the 420 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
