Manufactured by CHG Bearing, the 011.45.1250.12 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 1110 mm bore diameter, a 1390 mm outer diameter, and a 110 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.
011.45.1250.12 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 011.45.1250.12 |
| 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) | 1110 mm |
| Width (B) | 110 mm |
| Outer Diameter (D) | 1390 mm |
| Number of Lubrication Holes n1 | 5 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 1337 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 1163 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 40 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 26 |
| Outer Ring Mounting Hole Count n3 | 40 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 26 |
| Gear Data | |
| Gear Module m | 12 mm |
| Gear Tip Diameter De | 1449.6 mm |
| Number of Gear Teeth z | 118 |
| Gear Face Width b | 90 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 405 kg |
011.45.1250.12 1390 mm 1337 mm 1110 mm 110 mm 1163 mm Frequently Asked Questions about 011.45.1250.12 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 011.45.1250.12 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 match diverse operational dynamics, CHG Bearing supplies 011.45.1250.12 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.
To ensure optimum performance of CHG Bearing 011.45.1250.12 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 1110 mm bore. For the 1390 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Model 011.45.1250.12 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 1110 mm) and steep thermal gradients between inner and outer rings.
