Manufactured by CHG Bearing, the 7397/2570K1 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 2570 mm bore diameter, a 3145 mm outer diameter, and a 288 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.
7397/2570K1 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 7397/2570K1 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 2570 mm |
| Width (B) | 288 mm |
| Outer Diameter (D) | 3145 mm |
| Inner/Outer Ring Height H1 | 258 mm |
| End-face Height Difference h | 65 mm |
| Number of Lubrication Holes n1 | 10 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 3743 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 3358 mm |
| Lubrication Port Thread / Size Φ1 | ZG1/4 |
| Inner Ring Mounting Hole Count n2 | 72 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 45 |
| Outer Ring Mounting Hole Count n3 | 72 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 45 |
| Gear Data | |
| Gear Module m | 22 mm |
| Gear Tip Diameter De | 3933.6 mm |
| Number of Gear Teeth z | 176 |
| Gear Face Width b | 180 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 5042 kg |
7397/2570K1 3145 mm 2570 mm 3743 mm 3358 mm 288 mm Frequently Asked Questions about 7397/2570K1 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Absolutely. The CHG Bearing 7397/2570K1 Three-row Cylindrical Roller Slewing Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 7397/2570K1, FAG 7397/2570K1, NSK 7397/2570K1. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Model 7397/2570K1 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 2570 mm) and steep thermal gradients between inner and outer rings.
The Open Type engineered for 7397/2570K1 by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
The CHG Bearing 7397/2570K1 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.
