Manufactured by CHG Bearing, the 011.40.1120.12K 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.
011.40.1120.12K - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 011.40.1120.12K |
| 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 | 10 |
| Inner Ring Mounting Hole Count n2 | 18 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 20 |
| Outer Ring Mounting Hole Count n3 | 18 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 22 |
| Gear Data | |
| Gear Module m | 10 mm |
| Gear Tip Diameter De | 1300 mm |
| Number of Gear Teeth z | 127 |
| Gear Face Width b | 800 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 352 kg |
011.40.1120.12K 1242 mm 1198 mm 998 mm 100 mm 1042 mm Frequently Asked Questions about 011.40.1120.12K Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
For international ocean and air freight, CHG Bearing packs 011.40.1120.12K with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
To ensure optimum performance of CHG Bearing 011.40.1120.12K Four-Point Contact Ball Slewing Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 998 mm bore. For the 1242 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
In its sealed configuration (Open Type), CHG Bearing pre-charges 011.40.1120.12K 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.
Each 011.40.1120.12K produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (998 mm bore side) ensures perfect planar contact without edge binding.
