Manufactured by CHG Bearing, the HM252348DW/HM252310/HM252310CD is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 260.35 mm bore diameter, a 422.275 mm outer diameter, and a 314.325 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.

HM252348DW/HM252310/HM252310CD - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HM252348DW/HM252310/HM252310CD |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 260.35 mm |
| Width (B) | 314.325 mm |
| Outer Diameter (D) | 422.275 mm |
| Bore Diameter Tolerance | 0 – +0.025 mm |
| Outside Diameter Tolerance | 0 – +0.051 mm |
| Inner Ring Chamfer | 6.4 min mm |
| Outer Ring Chamfer | 3.2 min mm |
| Inner Ring Assembly Width Tolerance | -1.524 – +1.524 mm |
| Outer Ring Assembly Width | 317.5 mm |
| Outer Ring Assembly Width Tolerance | -1.524 – +1.524 mm |
| Shaft Abutment Diameter | 303.2 mm |
| Housing Abutment Diameter | 384.3 mm |
| Lubrication Hole Diameter | 11 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 3220 kN |
| Basic Static Load Rating C0 (kN) | 7300 kN |
| Material | |
| Mass (kg) | 169 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel |
| Lubrication Groove Width | 15 mm |
HM252348DW/HM252310/HM252310CD 422.275 mm 260.35 mm 314.325 mm Frequently Asked Questions about HM252348DW/HM252310/HM252310CD 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 HM252348DW/HM252310/HM252310CD with a precision bore diameter (d) of 260.35 mm, an outside diameter (D) of 422.275 mm, and a nominal ring width (B) of 314.325 mm. This configuration yields an effective cross-sectional wall thickness of 81.0 mm and an envelope ratio (D/d) of 1.62, delivering compact rigidity for OEM machinery housings.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for HM252348DW/HM252310/HM252310CD. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
Model HM252348DW/HM252310/HM252310CD is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 260.35 mm) and steep thermal gradients between inner and outer rings.
As standard production, CHG Bearing subjects HM252348DW/HM252310/HM252310CD 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.
