Manufactured by CHG Bearing, the 131.50.4000.03K is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 3718 mm bore diameter, a 4282 mm outer diameter, and a 270 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.
131.50.4000.03K - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 131.50.4000.03K |
| Brand | CHG® |
| Gear Type | Internal Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 3718 mm |
| Width (B) | 270 mm |
| Outer Diameter (D) | 4282 mm |
| Inner/Outer Ring Height H1 | 107 mm |
| End-face Height Difference h | 124 mm |
| Number of Lubrication Holes n1 | 9 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 2705 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2580 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 78 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 36 |
| Outer Ring Mounting Hole Count n3 | 78 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 39 |
| Gear Data | |
| Gear Module m | 16 mm |
| Gear Tip Diameter De | 2352 mm |
| Number of Gear Teeth z | 147 |
| Gear Face Width b | 108 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 1320 kg |
131.50.4000.03K 4282 mm 3718 mm 270 mm 2705 mm 2580 mm Frequently Asked Questions about 131.50.4000.03K Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To extend the trouble-free lifespan of CHG Bearing 131.50.4000.03K, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
Every production batch of CHG Bearing 131.50.4000.03K 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.
Standard batches of CHG Bearing 131.50.4000.03K 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.
Yes, 100% of 131.50.4000.03K 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.
