SD.486.20.00.B bearings ( 342 mm x 486 mm x 56 mm) have the advantages of Compact structure, lightweight, small footprint, high cost-performance ratio, and are therefore widely used in the Robots, construction machinery, wind turbines, radar antennas, and various rotary worktables.

| Part Number | SD.486.20.00.B |
| Gear type | Without Gear |
| Bearing Type | Slewing rings |
| Weight [kg] | 29 |
| Seal | Double sealed |
| Seal Material | NBR (Nitrile Butadiene Rubber) |
| Interchangeable | TGB SD.486.20.00.B |
| G NO. | NO.(4) x Greasenipples DIN 71412 AM 8x1 equally-spaced |
| Dimensions | |
| Da [mm] | 486 |
| U [mm] | 415.5 |
| C Tolerances [mm] | 412.5 |
| Di [mm] | 342 |
| H [mm] | 56 |
| Fixing holes | |
| La [mm] | 460 |
| na NO. | 24 |
| Li [mm] | 368 |
| ni NO. | 24 |
The SD.486.20.00.B Single-row four-point contact ball slewing bearings mainly consist of an inner ring, an outer ring, steel balls, spacers, and a sealing device. The raceways are peach-shaped or arc-shaped, and the steel balls form four-point contact with the inner and outer ring raceways. Gears can be integrated into the inner and outer rings.
Single-row four-point contact ball slewing bearings feature a low axial height and light weight due to their single-row structure. One bearing can simultaneously withstand axial loads, radial loads, and overturning moments. The four-point contact design provides high load-bearing capacity, good rigidity, and easy installation and maintenance.















