Manufactured by CHG Bearing, the K-LM772748/LM772710CD is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 488.95 mm bore diameter, a 634.873 mm outer diameter, and a 180.975 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.
K-LM772748/LM772710CD - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | K-LM772748/LM772710CD |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 488.95 mm |
| Width (B) | 180.975 mm |
| Outer Diameter (D) | 634.873 mm |
| Bore Diameter Tolerance | -0.02 – 0 mm |
| Outside Diameter Tolerance | -0.030 – 0 mm |
| Inner Ring Chamfer | 2.5 mm |
| Outer Ring Chamfer | 1 mm |
| Inner Ring Assembly Width Tolerance | -0.20 – 0 mm |
| Outer Ring Assembly Width | 110 mm |
| Outer Ring Assembly Width Tolerance | -0.3 – 0 mm |
| Shaft Abutment Diameter | 136 mm |
| Housing Abutment Diameter | 208 mm |
| Lubrication Hole Diameter | 5 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 669 kN |
| Basic Static Load Rating C0 (kN) | 1090 kN |
| Material | |
| Mass (kg) | 16 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 10 mm |
| Roller Material | Bearing Steel |
K-LM772748/LM772710CD 634.873 mm 488.95 mm Frequently Asked Questions about K-LM772748/LM772710CD Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Absolutely. The CHG Bearing K-LM772748/LM772710CD Double Row Tapered Roller Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF K-LM772748/LM772710CD, FAG K-LM772748/LM772710CD, NSK K-LM772748/LM772710CD. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Each K-LM772748/LM772710CD 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 (488.95 mm bore side) ensures perfect planar contact without edge binding.
To safeguard CHG Bearing K-LM772748/LM772710CD against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (488.95 mm x 634.873 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
When fitting K-LM772748/LM772710CD over a 488.95 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
