Manufactured by CHG Bearing, the 1797/574 is a precision Crossed Roller Slewing Bearings. Key dimensional parameters include a 574 mm bore diameter, a 781 mm outer diameter, and a 90 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.
1797/574 - Crossed Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 1797/574 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Single-row Crossed Roller Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 574 mm |
| Width (B) | 90 mm |
| Outer Diameter (D) | 781 mm |
| Inner/Outer Ring Height H1 | 74 mm |
| End-face Height Difference h | 71 mm |
| Number of Lubrication Holes n1 | 3 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 753 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 604 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 18 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 22 |
| Outer Ring Mounting Hole Count n3 | 18 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 22 |
| Gear Data | |
| Gear Module m | 6 mm |
| Gear Tip Diameter De | 792 mm |
| Number of Gear Teeth z | 132 |
| Gear Face Width b | 65 mm |
| Addendum Modification Coefficient x | 1.092 |
| Reference Data | |
| Reference Mass (kg) | 122 kg |
1797/574 781 mm 574 mm 90 mm 753 mm 604 mm Frequently Asked Questions about 1797/574 Crossed Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 1797/574 with a precision bore diameter (d) of 574 mm, an outside diameter (D) of 781 mm, and a nominal ring width (B) of 90 mm. This configuration yields an effective cross-sectional wall thickness of 103.5 mm and an envelope ratio (D/d) of 1.36, delivering compact rigidity for OEM machinery housings.
To ensure optimum performance of CHG Bearing 1797/574 Crossed Roller Slewing Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 574 mm bore. For the 781 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Quality starts with raw material selection: CHG Bearing crafts 1797/574 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
Standard batches of CHG Bearing 1797/574 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.
