21 SeriesInternal gear
21N.1081.12.000 Slewing Ring Bearing
21 Series slewing ring bearing, internal gear, 1,178 mm OD × 994 mm ID.
Specifications
| SlewPro part number | 21N.1081.12.000 |
|---|---|
| Series | 21 Series |
| Bearing design | Four-point contact, single-row ball |
| Gear | Internal gear |
| Raceway diameter | 1,081 mm (42.56 in) |
| Outside diameter | 1,178.1 mm (46.38 in) |
| Inside diameter | 993.9 mm (39.13 in) |
| Overall height | 44.4 mm (1.75 in) |
| Outer ring height | 38.1 mm (1.50 in) |
| Inner ring height | 38.1 mm (1.50 in) |
| All diameters on drawing | 46.38 in (1178.1 mm), 43.75 in (1111.2 mm), 42.63 in (1082.8 mm), 42.57 in (1081.3 mm), 42.51 in (1079.8 mm), 39.13 in (993.9 mm) |
| All heights on drawing | 1.75 in (44.4 mm), 1.50 in (38.1 mm), 0.47 in (11.9 mm) |
| Diametral pitch | 3 |
| Number of teeth | 119 |
| Pitch diameter | 39.67 in |
| Pressure angle | 20° |
| Material | Steel, 50Mn |
| Approx. weight | 130 lb (59 kg) |
Dimensions from our 3D model; confirm against the certified drawing. Load ratings and life calculations available from our engineers.
CAD & documents
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