Manufactured by CHG Bearing, the D1787/835 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 833 mm bore diameter, a 1115 mm outer diameter, and a 82 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.
D1787/835 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | D1787/835 |
| 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) | 833 mm |
| Width (B) | 82 mm |
| Outer Diameter (D) | 1115 mm |
| Number of Lubrication Holes n1 | 4 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 1015 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 880 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 36 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 22 |
| Outer Ring Mounting Hole Count n3 | 36 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 22 |
| Gear Data | |
| Gear Module m | 6 mm |
| Gear Tip Diameter De | 1115 mm |
| Number of Gear Teeth z | 184 |
| Gear Face Width b | 72 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 172 kg |
D1787/835 1115 mm 1015 mm 833 mm 82 mm 880 mm Frequently Asked Questions about D1787/835 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open Type), CHG Bearing pre-charges D1787/835 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
To ensure optimum performance of CHG Bearing D1787/835 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 833 mm bore. For the 1115 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for D1787/835, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
Quality starts with raw material selection: CHG Bearing crafts D1787/835 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.
