Manufactured by CHG Bearing, the 1787/4810 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 4810 mm bore diameter, a 5277 mm outer diameter, and a 210 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.
1787/4810 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 1787/4810 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Single-row Four-point Contact Ball Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 4810 mm |
| Width (B) | 210 mm |
| Outer Diameter (D) | 5277 mm |
| Number of Lubrication Holes n1 | 8 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 5187 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 4900 mm |
| Lubrication Port Thread / Size Φ1 | ZG1/4 |
| Inner Ring Mounting Hole Count n2 | 60 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 42 |
| Outer Ring Mounting Hole Count n3 | 60 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 45 |
| Gear Data | |
| Gear Module m | 25 mm |
| Gear Tip Diameter De | 5400 mm |
| Number of Gear Teeth z | 214 |
| Gear Face Width b | 180 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 5489 kg |
1787/4810 5277 mm 5187 mm 4810 mm 210 mm 4900 mm Frequently Asked Questions about 1787/4810 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To extend the trouble-free lifespan of CHG Bearing 1787/4810, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
Built for demanding industrial environments, the 1787/4810 Four-Point Contact 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.
Beyond standard alloy steel, CHG Bearing can customize the 1787/4810 Four-Point Contact Ball Slewing Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
Yes, 100% of 1787/4810 Four-Point Contact Ball Slewing Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
