Manufactured by CHG Bearing, the HSN.60.2820A is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 2555 mm bore diameter, a 3085 mm outer diameter, and a 200 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.
HSN.60.2820A - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HSN.60.2820A |
| Brand | CHG® |
| Gear Type | Internal Gear |
| Characteristics | |
| Bearing Type | Single-row Four-point Contact Ball Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 2555 mm |
| Width (B) | 200 mm |
| Outer Diameter (D) | 3085 mm |
| Number of Lubrication Holes n1 | 9 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 3000 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2640 mm |
| Lubrication Port Thread / Size Φ1 | 16 |
| Inner Ring Mounting Hole Count n2 | 54 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 24 |
| Outer Ring Mounting Hole Count n3 | 54 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 27 |
| Gear Data | |
| Gear Module m | 20 mm |
| Gear Tip Diameter De | 2460 mm |
| Number of Gear Teeth z | 124 |
| Gear Face Width b | 150 mm |
| Addendum Modification Coefficient x | -0.5 |
| Reference Data | |
| Reference Mass (kg) | 3310 kg |
HSN.60.2820A 3085 mm 2555 mm 3000 mm 2640 mm 200 mm Frequently Asked Questions about HSN.60.2820A Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing HSN.60.2820A 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.
As standard production, CHG Bearing subjects HSN.60.2820A to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
To safeguard CHG Bearing HSN.60.2820A against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (2555 mm x 3085 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
To ensure optimum performance of CHG Bearing HSN.60.2820A 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 2555 mm bore. For the 3085 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
