Manufactured by CHG Bearing, the LM451345/LM451310D is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 263.525 mm bore diameter, a 355.6 mm outer diameter, and a 127 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.
LM451345/LM451310D - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | LM451345/LM451310D |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 263.525 mm |
| Width (B) | 127 mm |
| Outer Diameter (D) | 355.6 mm |
| Bore Diameter Tolerance | 0 – +0.025 mm |
| Outside Diameter Tolerance | 0 – +0.051 mm |
| Inner Ring Chamfer | 3.2 mm |
| Outer Ring Chamfer | 9.5 mm |
| Inner Ring Assembly Width Tolerance | -0.508 – +0.711 mm |
| Outer Ring Assembly Width | 184.15 mm |
| Outer Ring Assembly Width Tolerance | -0.508 – +0.711 mm |
| Shaft Abutment Diameter | 324.9 mm |
| Housing Abutment Diameter | 457.5 mm |
| Lubrication Hole Diameter | 7 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 2100 kN |
| Basic Static Load Rating C0 (kN) | 4370 kN |
| Material | |
| Mass (kg) | 123 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 14 mm |
| Roller Material | Bearing Steel |
LM451345/LM451310D 355.6 mm 263.525 mm Frequently Asked Questions about LM451345/LM451310D Double 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 LM451345/LM451310D with a precision bore diameter (d) of 263.525 mm, an outside diameter (D) of 355.6 mm, and a nominal ring width (B) of 127 mm. This configuration yields an effective cross-sectional wall thickness of 46.0 mm and an envelope ratio (D/d) of 1.35, delivering compact rigidity for OEM machinery housings.
Each LM451345/LM451310D 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 (263.525 mm bore side) ensures perfect planar contact without edge binding.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for LM451345/LM451310D. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
To safeguard CHG Bearing LM451345/LM451310D against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (263.525 mm x 355.6 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
