Manufactured by CHG Bearing, the lHM231136/HM31111D is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 142.875 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.
lHM231136/HM31111D - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | lHM231136/HM31111D |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 142.875 mm |
| Width (B) | 131.763 mm |
| Outer Diameter (D) | 236.538 mm |
| Bore Diameter Tolerance | -0.022 – 0 mm |
| Outside Diameter Tolerance | -0.028 – 0 mm |
| Inner Ring Chamfer | 3 min mm |
| Outer Ring Chamfer | 3 min mm |
| Inner Ring Assembly Width Tolerance | -0.35 – 0 mm |
| Outer Ring Assembly Width | 120 mm |
| Outer Ring Assembly Width Tolerance | -0.50 – +0.50 mm |
| Shaft Abutment Diameter | N/A mm |
| Housing Abutment Diameter | N/A mm |
| Lubrication Hole Diameter | 12 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 981 kN |
| Basic Static Load Rating C0 (kN) | 1940 kN |
| Material | |
| Mass (kg) | 59.6 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 24 mm |
| Roller Material | Bearing Steel |
lHM231136/HM31111D 236.538 mm 142.875 mm Frequently Asked Questions about lHM231136/HM31111D Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Model lHM231136/HM31111D 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 142.875 mm) and steep thermal gradients between inner and outer rings.
For international ocean and air freight, CHG Bearing packs lHM231136/HM31111D with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
Each lHM231136/HM31111D produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (142.875 mm bore side) ensures perfect planar contact without edge binding.
To safeguard CHG Bearing lHM231136/HM31111D against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (142.875 mm x 236.538 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
