Manufactured by CHG Bearing, the 7397/2860 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 2860 mm bore diameter, a 3410 mm outer diameter, and a 264 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.
7397/2860 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 7397/2860 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 2860 mm |
| Width (B) | 264 mm |
| Outer Diameter (D) | 3410 mm |
| Inner/Outer Ring Height H1 | 258 mm |
| End-face Height Difference h | 60 mm |
| Number of Lubrication Holes n1 | 8 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 4692 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 4308 mm |
| Lubrication Port Thread / Size Φ1 | ZG1/4 |
| Inner Ring Mounting Hole Count n2 | 80 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 39 |
| Outer Ring Mounting Hole Count n3 | 80 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 39 |
| Gear Data | |
| Gear Module m | 25 mm |
| Gear Tip Diameter De | 4895 mm |
| Number of Gear Teeth z | 193 |
| Gear Face Width b | 185 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 7362 kg |
7397/2860 3410 mm 2860 mm 4692 mm 4308 mm 264 mm Frequently Asked Questions about 7397/2860 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, 100% of 7397/2860 Three-row Cylindrical Roller Slewing Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
Engineered according to international ISO boundary plans, CHG Bearing supplies 7397/2860 with a precision bore diameter (d) of 2860 mm, an outside diameter (D) of 3410 mm, and a nominal ring width (B) of 264 mm. This configuration yields an effective cross-sectional wall thickness of 275.0 mm and an envelope ratio (D/d) of 1.19, delivering compact rigidity for OEM machinery housings.
To safeguard CHG Bearing 7397/2860 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (2860 mm x 3410 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 7397/2860. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
