Manufactured by CHG Bearing, the 131.50.3150.11 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 2868 mm bore diameter, a 3432 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.
131.50.3150.11 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 131.50.3150.11 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 2868 mm |
| Width (B) | 270 mm |
| Outer Diameter (D) | 3432 mm |
| Inner/Outer Ring Height H1 | 258 mm |
| End-face Height Difference h | 65 mm |
| Number of Lubrication Holes n1 | 13 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 5200 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 4825 mm |
| Lubrication Port Thread / Size Φ1 | M10×1 |
| Inner Ring Mounting Hole Count n2 | 78 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 45 |
| Outer Ring Mounting Hole Count n3 | 78 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 45 |
| Gear Data | |
| Gear Module m | 28 mm |
| Gear Tip Diameter De | 5486.18 mm |
| Number of Gear Teeth z | 193 |
| Gear Face Width b | 213 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 9113 kg |
131.50.3150.11 3432 mm 2868 mm 5200 mm 4825 mm 270 mm Frequently Asked Questions about 131.50.3150.11 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 131.50.3150.11 with a precision bore diameter (d) of 2868 mm, an outside diameter (D) of 3432 mm, and a nominal ring width (B) of 270 mm. This configuration yields an effective cross-sectional wall thickness of 282.0 mm and an envelope ratio (D/d) of 1.2, delivering compact rigidity for OEM machinery housings.
In its sealed configuration (Open Type), CHG Bearing pre-charges 131.50.3150.11 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.
The Open Type engineered for 131.50.3150.11 by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
As standard production, CHG Bearing subjects 131.50.3150.11 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
