Manufactured by CHG Bearing, the 021.30.800 is a precision Double-Row Ball Slewing Bearings. Key dimensional parameters include a 658 mm bore diameter, a 942 mm outer diameter, and a 124 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.
021.30.800 - Double-Row Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 021.30.800 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Double-Row Ball Slewing Bearing |
| Row Configuration | Double Row |
| Dimensions | |
| Bore Diameter (d) | 658 mm |
| Width (B) | 124 mm |
| Outer Diameter (D) | 942 mm |
| End-face Height Difference h | 29 mm |
| Number of Lubrication Holes n1 | 6 |
| Ring Height H1 | 114 mm |
| Mounting Hole Diameter Φ | 22 mm |
| Performance | |
| Mounting Hole Count n | 30 |
| Tangential Tooth Force, Normalized Z (×10⁴ N) | 8 ×10⁴ N |
| Tangential Tooth Force, Quenched T (×10⁴ N) | 11.1 ×10⁴ N |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 898 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 702 mm |
| Lubrication Port Thread / Size Φ1 | M10×1 |
| Gear Data | |
| Gear Module m | 8 mm |
| Gear Tip Diameter De | 982.4 mm |
| Number of Gear Teeth z | 120 |
| Gear Face Width b | 80 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 200 kg |
021.30.800 942 mm 658 mm 124 mm 898 mm 702 mm Frequently Asked Questions about 021.30.800 Double-Row Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Built for demanding industrial environments, the 021.30.800 Double-Row Ball Slewing Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
The CHG Bearing 021.30.800 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.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 021.30.800 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.
Standard batches of CHG Bearing 021.30.800 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.
