Manufactured by CHG Bearing, the 7397/3630 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 3735 mm bore diameter, a 4238 mm outer diameter, and a 215 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.
7397/3630 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 7397/3630 |
| Brand | CHG® |
| Gear Type | Internal Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 3735 mm |
| Width (B) | 215 mm |
| Outer Diameter (D) | 4238 mm |
| Inner/Outer Ring Height H1 | 130 mm |
| End-face Height Difference h | 150 mm |
| Number of Lubrication Holes n1 | 18 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 2980 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2775 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 68 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 33 |
| Outer Ring Mounting Hole Count n3 | 68 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 36 |
| Gear Data | |
| Gear Module m | 22 mm |
| Gear Tip Diameter De | 2618 mm |
| Number of Gear Teeth z | 119 |
| Gear Face Width b | 150 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 1720 kg |
7397/3630 4238 mm 3735 mm 215 mm 2980 mm 2775 mm Frequently Asked Questions about 7397/3630 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 7397/3630. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
Model 7397/3630 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 3735 mm) and steep thermal gradients between inner and outer rings.
Every production batch of CHG Bearing 7397/3630 Three-row Cylindrical Roller Slewing Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
To safeguard CHG Bearing 7397/3630 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (3735 mm x 4238 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
