Manufactured by CHG Bearing, the 75234800-183JD is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 1900 mm bore diameter, a 2112 mm outer diameter, and a 73 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.

75234800-183JD - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 75234800-183JD |
| 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) | 1900 mm |
| Width (B) | 73 mm |
| Outer Diameter (D) | 2112 mm |
| Number of Lubrication Holes n1 | 4 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 2084 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 1960 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 36 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 12 |
| Outer Ring Mounting Hole Count n3 | 36 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 12 |
| Gear Data | |
| Gear Module m | 10 mm |
| Gear Tip Diameter De | 2130 mm |
| Number of Gear Teeth z | 213 |
| Gear Face Width b | 50 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 343 kg |
75234800-183JD 2112 mm 2084 mm 1900 mm 73 mm 1960 mm Frequently Asked Questions about 75234800-183JD Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing 75234800-183JD is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 75234800-183JD. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
To extend the trouble-free lifespan of CHG Bearing 75234800-183JD, 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.
To match diverse operational dynamics, CHG Bearing supplies 75234800-183JD 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.
