Manufactured by CHG Bearing, the 012.30.500.03K1 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 398 mm bore diameter, a 664 mm outer diameter, and a 130 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.
012.30.500.03K1 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 012.30.500.03K1 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Single-row Four-point Contact Ball Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 398 mm |
| Width (B) | 130 mm |
| Outer Diameter (D) | 664 mm |
| Number of Lubrication Holes n1 | 4 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 566 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 434 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 20 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 18 |
| Outer Ring Mounting Hole Count n3 | 20 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 14 |
| Gear Data | |
| Gear Module m | 8 mm |
| Gear Tip Diameter De | 648 mm |
| Number of Gear Teeth z | 81 |
| Gear Face Width b | 120 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 170 kg |
012.30.500.03K1 664 mm 566 mm 398 mm 130 mm 434 mm Frequently Asked Questions about 012.30.500.03K1 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing 012.30.500.03K1 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (398 mm x 664 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 012.30.500.03K1 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.
Quality starts with raw material selection: CHG Bearing crafts 012.30.500.03K1 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.
When fitting 012.30.500.03K1 over a 398 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.
