Manufactured by CHG Bearing, the 7397/2700G2K2 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 2700 mm bore diameter, a 3150 mm outer diameter, and a 255 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.
7397/2700G2K2 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 7397/2700G2K2 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 2700 mm |
| Width (B) | 255 mm |
| Outer Diameter (D) | 3150 mm |
| Inner/Outer Ring Height H1 | 258 mm |
| End-face Height Difference h | 65 mm |
| Number of Lubrication Holes n1 | 8 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 4192 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 3808 mm |
| Lubrication Port Thread / Size Φ1 | M10×1 |
| Inner Ring Mounting Hole Count n2 | 80 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 45 |
| Outer Ring Mounting Hole Count n3 | 80 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 45 |
| Gear Data | |
| Gear Module m | 22 mm |
| Gear Tip Diameter De | 4395.6 mm |
| Number of Gear Teeth z | 197 |
| Gear Face Width b | 180 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 6377 kg |
7397/2700G2K2 3150 mm 2700 mm 4192 mm 3808 mm 255 mm Frequently Asked Questions about 7397/2700G2K2 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To ensure optimum performance of CHG Bearing 7397/2700G2K2 Three-row Cylindrical Roller Slewing Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 2700 mm bore. For the 3150 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
The Open Type engineered for 7397/2700G2K2 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.
Standard batches of CHG Bearing 7397/2700G2K2 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.
The CHG Bearing 7397/2700G2K2 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.
