Manufactured by CHG Bearing, the 2787/1083.7 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 1130 mm bore diameter, a 1323 mm outer diameter, and a 99 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.
2787/1083.7 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 2787/1083.7 |
| 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) | 1130 mm |
| Width (B) | 99 mm |
| Outer Diameter (D) | 1323 mm |
| Number of Lubrication Holes n1 | 2 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 1274 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 1162 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 32 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 20 |
| Outer Ring Mounting Hole Count n3 | 32 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 36 |
| Gear Data | |
| Gear Module m | 10 mm |
| Gear Tip Diameter De | 1083.7 mm |
| Number of Gear Teeth z | 110 |
| Gear Face Width b | 90 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 241 kg |
2787/1083.7 1323 mm 1130 mm 1274 mm 1162 mm 99 mm Frequently Asked Questions about 2787/1083.7 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing 2787/1083.7 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (1130 mm x 1323 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
To extend the trouble-free lifespan of CHG Bearing 2787/1083.7, 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies 2787/1083.7 with a precision bore diameter (d) of 1130 mm, an outside diameter (D) of 1323 mm, and a nominal ring width (B) of 99 mm. This configuration yields an effective cross-sectional wall thickness of 96.5 mm and an envelope ratio (D/d) of 1.17, delivering compact rigidity for OEM machinery housings.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 2787/1083.7. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
