Manufactured by CHG Bearing, the 2788/1712K is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 1790 mm bore diameter, a 2050 mm outer diameter, and a 126 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.
2788/1712K - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 2788/1712K |
| 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) | 1790 mm |
| Width (B) | 126 mm |
| Outer Diameter (D) | 2050 mm |
| Number of Lubrication Holes n1 | 18 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 2006 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 1847 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 72 |
| 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 | 16 mm |
| Gear Tip Diameter De | 1712 mm |
| Number of Gear Teeth z | 108 |
| Gear Face Width b | 99 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 859 kg |
2788/1712K 2050 mm 1790 mm 2006 mm 1847 mm 126 mm Frequently Asked Questions about 2788/1712K Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, 100% of 2788/1712K 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.
The Open Type engineered for 2788/1712K by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
Absolutely. The CHG Bearing 2788/1712K Four-Point Contact Ball Slewing Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 2788/1712K, FAG 2788/1712K, NSK 2788/1712K. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
To extend the trouble-free lifespan of CHG Bearing 2788/1712K, 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.
