Manufactured by CHG Bearing, the 013.25.900.12 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 794 mm bore diameter, a 1008 mm outer diameter, and a 78 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.
013.25.900.12 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 013.25.900.12 |
| Brand | CHG® |
| Gear Type | Internal Gear |
| Characteristics | |
| Bearing Type | Single-row Four-point Contact Ball Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 794 mm |
| Width (B) | 78 mm |
| Outer Diameter (D) | 1008 mm |
| Number of Lubrication Holes n1 | 2 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 964 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 836 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 20 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 22 |
| Outer Ring Mounting Hole Count n3 | 20 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 22 |
| Gear Data | |
| Gear Module m | 8 mm |
| Gear Tip Diameter De | 744 mm |
| Number of Gear Teeth z | 94 |
| Gear Face Width b | 58 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 181 kg |
013.25.900.12 1008 mm 794 mm 964 mm 836 mm 78 mm Frequently Asked Questions about 013.25.900.12 Four-Point Contact Ball 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 013.25.900.12 with a precision bore diameter (d) of 794 mm, an outside diameter (D) of 1008 mm, and a nominal ring width (B) of 78 mm. This configuration yields an effective cross-sectional wall thickness of 107.0 mm and an envelope ratio (D/d) of 1.27, delivering compact rigidity for OEM machinery housings.
As standard production, CHG Bearing subjects 013.25.900.12 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.
To match diverse operational dynamics, CHG Bearing supplies 013.25.900.12 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 013.25.900.12 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.
