Manufactured by CHG Bearing, the HM231132/HM231111D is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 139.7 mm bore diameter, a 236.538 mm outer diameter, and a 131.763 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.
HM231132/HM231111D - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HM231132/HM231111D |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 139.7 mm |
| Width (B) | 131.763 mm |
| Outer Diameter (D) | 236.538 mm |
| Bore Diameter Tolerance | -0.018 – 0 mm |
| Outside Diameter Tolerance | -0.020 – 0 mm |
| Inner Ring Chamfer | 1 min mm |
| Outer Ring Chamfer | 2 min mm |
| Inner Ring Assembly Width Tolerance | N/A mm |
| Outer Ring Assembly Width | 71 mm |
| Outer Ring Assembly Width Tolerance | -0.30 – +0.30 mm |
| Shaft Abutment Diameter | N/A mm |
| Housing Abutment Diameter | N/A mm |
| Lubrication Hole Diameter | 5 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 487 kN |
| Basic Static Load Rating C0 (kN) | 841 kN |
| Material | |
| Mass (kg) | 11.5 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 3 mm |
| Roller Material | Bearing Steel |
HM231132/HM231111D 236.538 mm 139.7 mm Frequently Asked Questions about HM231132/HM231111D Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing HM231132/HM231111D is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
Engineered according to international ISO boundary plans, CHG Bearing supplies HM231132/HM231111D with a precision bore diameter (d) of 139.7 mm, an outside diameter (D) of 236.538 mm, and a nominal ring width (B) of 131.763 mm. This configuration yields an effective cross-sectional wall thickness of 48.4 mm and an envelope ratio (D/d) of 1.69, delivering compact rigidity for OEM machinery housings.
To ensure optimum performance of CHG Bearing HM231132/HM231111D Double Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 139.7 mm bore. For the 236.538 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Every production batch of CHG Bearing HM231132/HM231111D Double 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.
