Manufactured by CHG Bearing, the D1797/496 is a precision Crossed Roller Slewing Bearings. Key dimensional parameters include a 496 mm bore diameter, a 694 mm outer diameter, and a 65 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.
D1797/496 - Crossed Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | D1797/496 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Single-row Crossed Roller Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 496 mm |
| Width (B) | 65 mm |
| Outer Diameter (D) | 694 mm |
| Inner/Outer Ring Height H1 | 56 mm |
| End-face Height Difference h | 56 mm |
| Number of Lubrication Holes n1 | 2 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 658 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 532 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 20 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 18 |
| Outer Ring Mounting Hole Count n3 | 20 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 18 |
| Gear Data | |
| Gear Module m | 4 mm |
| Gear Tip Diameter De | 704 mm |
| Number of Gear Teeth z | 176 |
| Gear Face Width b | 50 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 79.7 kg |
D1797/496 694 mm 496 mm 65 mm 658 mm 532 mm Frequently Asked Questions about D1797/496 Crossed Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To match diverse operational dynamics, CHG Bearing supplies D1797/496 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies D1797/496 with a precision bore diameter (d) of 496 mm, an outside diameter (D) of 694 mm, and a nominal ring width (B) of 65 mm. This configuration yields an effective cross-sectional wall thickness of 99.0 mm and an envelope ratio (D/d) of 1.4, delivering compact rigidity for OEM machinery housings.
To safeguard CHG Bearing D1797/496 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (496 mm x 694 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
The CHG Bearing D1797/496 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.
