Manufactured by CHG Bearing, the LL579749/LL579710D is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 609.6 mm bore diameter, a 717.55 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.
LL579749/LL579710D - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | LL579749/LL579710D |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 609.6 mm |
| Width (B) | 127 mm |
| Outer Diameter (D) | 717.55 mm |
| Bore Diameter Tolerance | -0.03 – 0 mm |
| Outside Diameter Tolerance | -0.045 – 0 mm |
| Inner Ring Chamfer | 6 mm |
| Outer Ring Chamfer | 6 mm |
| Inner Ring Assembly Width Tolerance | -0.3 – 0 mm |
| Outer Ring Assembly Width | 230 mm |
| Outer Ring Assembly Width Tolerance | -0.45 – 0 mm |
| Shaft Abutment Diameter | 282 mm |
| Housing Abutment Diameter | 452 mm |
| Lubrication Hole Diameter | 7 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 2610 kN |
| Basic Static Load Rating C0 (kN) | 4130 kN |
| Material | |
| Mass (kg) | 190 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 14 mm |
| Roller Material | Bearing Steel |
LL579749/LL579710D 717.55 mm 609.6 mm Frequently Asked Questions about LL579749/LL579710D Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
For international ocean and air freight, CHG Bearing packs LL579749/LL579710D 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 LL579749/LL579710D 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 (609.6 mm bore side) ensures perfect planar contact without edge binding.
To safeguard CHG Bearing LL579749/LL579710D against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (609.6 mm x 717.55 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Standard batches of CHG Bearing LL579749/LL579710D conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
