Manufactured by CHG Bearing, the 011.40.1120.12K2 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 998 mm bore diameter, a 1242 mm outer diameter, and a 100 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.
011.40.1120.12K2 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 011.40.1120.12K2 |
| 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) | 998 mm |
| Width (B) | 100 mm |
| Outer Diameter (D) | 1242 mm |
| Number of Lubrication Holes n1 | 6 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 1198 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 1042 mm |
| Lubrication Port Thread / Size Φ1 | ZG1/4 |
| Inner Ring Mounting Hole Count n2 | 18 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 22 |
| Outer Ring Mounting Hole Count n3 | 18 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 20 |
| Gear Data | |
| Gear Module m | 10 mm |
| Gear Tip Diameter De | 1300 mm |
| Number of Gear Teeth z | 127 |
| Gear Face Width b | 80 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 352 kg |
011.40.1120.12K2 1242 mm 1198 mm 998 mm 100 mm 1042 mm Frequently Asked Questions about 011.40.1120.12K2 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 011.40.1120.12K2 with a precision bore diameter (d) of 998 mm, an outside diameter (D) of 1242 mm, and a nominal ring width (B) of 100 mm. This configuration yields an effective cross-sectional wall thickness of 122.0 mm and an envelope ratio (D/d) of 1.24, delivering compact rigidity for OEM machinery housings.
When fitting 011.40.1120.12K2 over a 998 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.
Sourcing 011.40.1120.12K2 directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Four-Point Contact Ball Slewing Bearings.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 011.40.1120.12K2 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.
