Manufactured by CHG Bearing, the 382944X2P5 is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 220 mm bore diameter, a 300 mm outer diameter, and a 230 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.

382944X2P5 - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 382944X2P5 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 220 mm |
| Width (B) | 230 mm |
| Outer Diameter (D) | 300 mm |
| Bore Diameter Tolerance | -0.022 – 0 mm |
| Outside Diameter Tolerance | -0.025 – 0 mm |
| Inner Ring Chamfer | 2.5 min mm |
| Outer Ring Chamfer | 2.5 min mm |
| Inner Ring Assembly Width Tolerance | -0.6 – +0.6 mm |
| Outer Ring Assembly Width | 230 mm |
| Outer Ring Assembly Width Tolerance | -0.6 – +0.6 mm |
| Shaft Abutment Diameter | 229 mm |
| Housing Abutment Diameter | 277 mm |
| Lubrication Hole Diameter | 4 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1570 kN |
| Basic Static Load Rating C0 (kN) | 4000 kN |
| Material | |
| Mass (kg) | 46.2 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | 08Al Steel |
| Lubrication Groove Width | 9.5 mm |
382944X2P5 300 mm 220 mm 230 mm Frequently Asked Questions about 382944X2P5 Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 382944X2P5 with a precision bore diameter (d) of 220 mm, an outside diameter (D) of 300 mm, and a nominal ring width (B) of 230 mm. This configuration yields an effective cross-sectional wall thickness of 40.0 mm and an envelope ratio (D/d) of 1.36, delivering compact rigidity for OEM machinery housings.
Quality starts with raw material selection: CHG Bearing crafts 382944X2P5 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
To ensure optimum performance of CHG Bearing 382944X2P5 Four-Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 220 mm bore. For the 300 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
As standard production, CHG Bearing subjects 382944X2P5 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
