Manufactured by CHG Bearing, the 131.38.3161.03 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 2930 mm bore diameter, a 3390 mm outer diameter, and a 216 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.
131.38.3161.03 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 131.38.3161.03 |
| Brand | CHG® |
| Gear Type | Gearless |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 2930 mm |
| Width (B) | 216 mm |
| Outer Diameter (D) | 3390 mm |
| Inner/Outer Ring Height H1 | 196 mm |
| End-face Height Difference h | 52 mm |
| Number of Lubrication Holes n1 | 10 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 2800 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2440 mm |
| Lubrication Port Thread / Size Φ1 | ZG1/4 |
| Inner Ring Mounting Hole Count n2 | 60 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 39 |
| Outer Ring Mounting Hole Count n3 | 60 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 39 |
| Reference Data | |
| Reference Mass (kg) | 3215 kg |
131.38.3161.03 2440 mm 2930 mm 2800 mm 3390 mm 216 mm Frequently Asked Questions about 131.38.3161.03 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 131.38.3161.03 correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
Absolutely. The CHG Bearing 131.38.3161.03 Three-row Cylindrical Roller Slewing Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 131.38.3161.03, FAG 131.38.3161.03, NSK 131.38.3161.03. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Yes, 100% of 131.38.3161.03 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.
In its sealed configuration (Open Type), CHG Bearing pre-charges 131.38.3161.03 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
