Manufactured by CHG Bearing, the 130.25.933.03 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 770 mm bore diameter, a 1100 mm outer diameter, and a 163 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.
130.25.933.03 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 130.25.933.03 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 770 mm |
| Width (B) | 163 mm |
| Outer Diameter (D) | 1100 mm |
| Inner/Outer Ring Height H1 | 100 mm |
| End-face Height Difference h | 120 mm |
| Number of Lubrication Holes n1 | 16 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 1864 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 1620 mm |
| Lubrication Port Thread / Size Φ1 | RC1/8 |
| Inner Ring Mounting Hole Count n2 | 64 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 33 |
| Outer Ring Mounting Hole Count n3 | 74 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 33 |
| Gear Data | |
| Gear Module m | 14 mm |
| Gear Tip Diameter De | 1960 mm |
| Number of Gear Teeth z | 140 |
| Gear Face Width b | 100 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 856 kg |
130.25.933.03 1100 mm 770 mm 1864 mm 1620 mm 163 mm Frequently Asked Questions about 130.25.933.03 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open Type), CHG Bearing pre-charges 130.25.933.03 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.
As standard production, CHG Bearing subjects 130.25.933.03 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.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 130.25.933.03 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.
To ensure optimum performance of CHG Bearing 130.25.933.03 Three-row Cylindrical Roller Slewing Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 770 mm bore. For the 1100 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
