Manufactured by CHG Bearing, the 131.50.4000.03 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.
131.50.4000.03 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 131.50.4000.03 |
| 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 | 140 mm |
| End-face Height Difference h | 140 mm |
| Number of Lubrication Holes n1 | 36 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 2700 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2485 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 | 18 mm |
| Gear Tip Diameter De | 2358 mm |
| Number of Gear Teeth z | 131 |
| Gear Face Width b | 130 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 1600 kg |
131.50.4000.03 4282 mm 3718 mm 270 mm 2700 mm 2485 mm Frequently Asked Questions about 131.50.4000.03 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting 131.50.4000.03 over a 3718 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
Sourcing 131.50.4000.03 directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Three-row Cylindrical Roller Slewing Bearings.
Quality starts with raw material selection: CHG Bearing crafts 131.50.4000.03 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
Yes, 100% of 131.50.4000.03 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.
