12-2000-01 Bore 1779 Mm, Specific Angular Contact Ball Slewing Rings (Double Row - Speed) For High-speed Rotation Applications
The 12-2000-01 Double-row four-point contact ball slewing bearings are widely used in Heavy-duty applications with extremely high load-bearing capacity requirements and limited installation space, such as large-scale construction machinery (large-tonnage cranes, excavators), wind power generation (main bearings), port machinery (quay cranes, stacker-reclaimers), mining machinery, tunnel boring machines, and large radar antennas, among other fields.
The 12-2000-01 bearing is a Specific angular contact ball slewing rings (Double Row - Speed) for high-speed rotation applications with internal gear with cage with an inner diameter of 1779 mm , an outer diameter of 2135 mm, a width of 123 mm. It typically uses P0, P6, P5 grade precision tolerances and 42CrMo4 rings, GCr15 rolling mlement. It primarily bears axial, radial and tilting moment loads, Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
12-2000-01 bearings ( 1779 mm x 2135 mm x 123 mm) have the advantages of high load-bearing capacity, good rigidity, stable structure, and strong impact resistance, and are therefore widely used in the Large excavators, tower cranes, and yaw bearings for wind power generation.
| Part Number | 12-2000-01 |
| Interchangeable | ROLLIX 12-2000-01 |
| Series | series 12 (DR-S) |
| Bearing Type | Specific angular contact ball slewing rings (Double Row - Speed) for high-speed rotation applications with internal gear with cage |
| Gearing type | internal gear |
| Cages or spacers Material | Reinforced Nylon (PA66 + Glass Fiber) |
| Seal | Open |
| Rows NO. | Double |
| Manufacturer Part Code | 12 2000 01 |
| Load | axial, radial and tilting moment loads |
| Accuracy class | P0, P6, P5 |
| Rolling Element Type | Balls |
| DIMENSIONS | |
| HT [mm] | 123 |
| Øde [mm] | 2135 |
| He [mm] | 123 |
| Ødi [mm] | 1779 |
| Hi [mm] | 123 |
| Bearing Weight [kg] | 886 |
| GEAR | |
| Module [mm] | 16 |
| Number of teeth - Z | 112 |
| W [mm] | 113 |
| Gear capacity unhardened [N] | 349000 |
| Gear capacity hardened [N] | 406000 |
| FASTENING HOLES | |
| External ring hole type | Through |
| Øfe [mm] | 2080 |
| Ne Number of holes on Outer Ring | 60 |
| Dhe [mm] | 27 |
| Inner ring hole type | Through |
| Øfi [mm] | 1920 |
| Ni Number of holes on Inner Ring | 60 |
| Dhi [mm] | 27 |
| GREASING | |
| Ring with greasing holes (with M10 x 1.00 thread) | on External ring |
| Greasing hole type | Radial |
The 12-2000-01 Double-row four-point contact ball slewing bearings mainly consist of an inner ring, an outer ring, upper and lower rows of steel balls, spacers, and a sealing device. The two rows of steel balls make four-point contact within the raceway, and gears can be integrated into the inner and outer rings, resulting in a compact structural layout.
Double-row four-point contact ball slewing bearings utilize a double-row ball structure, significantly improving load-bearing capacity. They can simultaneously withstand axial loads, radial loads, and overturning moments, and offer superior rigidity compared to single-row structures. With a moderate overall height, they ensure stable and reliable installation, making them suitable for heavy-duty applications.
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