18-3000-00 Bore 2775 Mm, Standard Double Row Crossed Rollers Slewing Rings Without Gear With Spacers
The 18-3000-00 Crossed roller slewing bearings are widely used in requiring high levels of rotational accuracy, rigidity, and load-bearing capacity, where installation space is often limited，such as industrial robots (joints, rotary seats), CNC machine tools (rotary tables, turrets), medical equipment (CT scanners, surgical robots), precision measuring instruments, radar turntables, and aerospace applications.
The 18-3000-00 bearing is a Standard double row crossed rollers slewing rings without gear with spacers with an inner diameter of 2775 mm , an outer diameter of 3230 mm, a width of 215 mm. It typically uses P0, P6, P5 grade precision tolerances and XC45 or 42CrMo4 rings, GCr15 rolling mlement. It primarily bears axial, radial and tilting moment loads, Double sealed type, NBR (Nitrile Butadiene Rubber). together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
18-3000-00 bearings ( 2775 mm x 3230 mm x 215 mm) have the advantages of The rollers are arranged in a cross pattern, resulting in minimal deformation, low rotational runout, and precise positioning, and are therefore widely used in the Industrial robots, machine tool rotary tables, medical devices, radar antennas and precision rotating equipment.
| Part Number | 18-3000-00 |
| Interchangeable | ROLLIX 18-3000-00 |
| Series | series 18 |
| Bearing Type | Standard double row crossed rollers slewing rings without gear with spacers |
| Gearing type | without gear |
| Cages or spacers Material | Nylon (polyamide PA66) |
| Seal | Double sealed |
| Seal Material | NBR (Nitrile Butadiene Rubber) |
| Rows NO. | Double |
| Manufacturer Part Code | 18 3000 00 |
| Load | axial, radial and tilting moment loads |
| Accuracy class | P0, P6, P5 |
| Rolling Element Type | Cylindrical rollers |
| DIMENSIONS | |
| HT [mm] | 215 |
| Øde [mm] | 3230 |
| He [mm] | 200 |
| Ødi [mm] | 2775 |
| Hi [mm] | 200 |
| Øce [mm] | 3225 |
| Øci [mm] | 2778 |
| Bearing Weight [kg] | 3440 |
| FASTENING HOLES | |
| External ring hole type | Through |
| Øfe [mm] | 3140 |
| Ne Number of holes on Outer Ring | 90 |
| Dhe [mm] | 39 |
| Inner ring hole type | Through |
| Øfi [mm] | 2860 |
| Ni Number of holes on Inner Ring | 90 |
| Dhi [mm] | 39 |
| GREASING | |
| Ring with greasing holes (with M10 x 1.00 thread) | on Internal ring |
| Greasing hole type | Radial |
The 18-3000-00 Crossed roller slewing bearings mainly consist of an inner ring, an outer ring, cross-arranged cylindrical rollers, spacers, and a sealing device. The rollers are arranged at 90° intervals within the raceway, enabling a single-row structure to withstand multi-directional loads.
The cross-arrangement of the rollers in crossed roller slewing bearings allows them to simultaneously withstand radial loads, axial loads, and overturning moments. They exhibit extremely high rigidity and a precision grade of P5 or higher. Their compact structure and easy installation significantly save installation space.
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