Manufactured by CHG Bearing, the 021.40.1250 is a precision Double-Row Ball Slewing Bearings. Key dimensional parameters include a 1074 mm bore diameter, a 1426 mm outer diameter, and a 160 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.
021.40.1250 - Double-Row Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 021.40.1250 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Double-Row Ball Slewing Bearing |
| Row Configuration | Double Row |
| Dimensions | |
| Bore Diameter (d) | 1074 mm |
| Width (B) | 160 mm |
| Outer Diameter (D) | 1426 mm |
| End-face Height Difference h | 39 mm |
| Number of Lubrication Holes n1 | 5 |
| Ring Height H1 | 150 mm |
| Mounting Hole Diameter Φ | 26 mm |
| Performance | |
| Mounting Hole Count n | 40 |
| Tangential Tooth Force, Normalized Z (×10⁴ N) | 13.5 ×10⁴ N |
| Tangential Tooth Force, Quenched T (×10⁴ N) | 18.8 ×10⁴ N |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 1374 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 1126 mm |
| Lubrication Port Thread / Size Φ1 | M10×1 |
| Gear Data | |
| Gear Module m | 12 mm |
| Gear Tip Diameter De | 1497.6 mm |
| Number of Gear Teeth z | 122 |
| Gear Face Width b | 90 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 580 kg |
021.40.1250 1426 mm 1074 mm 160 mm 1374 mm 1126 mm Frequently Asked Questions about 021.40.1250 Double-Row Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Standard batches of CHG Bearing 021.40.1250 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
The CHG Bearing 021.40.1250 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
Model 021.40.1250 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 1074 mm) and steep thermal gradients between inner and outer rings.
Sourcing 021.40.1250 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 Double-Row Ball Slewing Bearings.
