Manufactured by CHG Bearing, the E1787/180 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 180 mm bore diameter, a 280 mm outer diameter, and a 40 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.
E1787/180 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | E1787/180 |
| 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) | 180 mm |
| Width (B) | 40 mm |
| Outer Diameter (D) | 280 mm |
| Number of Lubrication Holes n1 | 2 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 260 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 200 mm |
| Lubrication Port Thread / Size Φ1 | 6 |
| Inner Ring Mounting Hole Count n2 | 16 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 8 |
| Outer Ring Mounting Hole Count n3 | 16 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 8 |
| Gear Data | |
| Gear Module m | 2 mm |
| Gear Tip Diameter De | 316 mm |
| Number of Gear Teeth z | 158 |
| Gear Face Width b | 22 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 11.7 kg |
E1787/180 280 mm 260 mm 180 mm 40 mm 200 mm Frequently Asked Questions about E1787/180 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, 100% of E1787/180 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.
When fitting E1787/180 over a 180 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
To match diverse operational dynamics, CHG Bearing supplies E1787/180 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
The Open Type engineered for E1787/180 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.
