21 SeriesInternal gearRotek L6-22N9Z
21N.0544.19.000 Slewing Ring Bearing
21 Series slewing ring bearing, internal gear, 648 mm OD × 447 mm ID. Interchangeable with Rotek L6-22N9Z.
Specifications
| SlewPro part number | 21N.0544.19.000 |
|---|---|
| Series | 21 Series |
| Bearing design | Four-point contact, single-row ball |
| Gear | Internal gear |
| Raceway diameter | 544 mm (21.42 in) |
| Outside diameter | 648 mm (25.51 in) |
| Inside diameter | 447 mm (17.60 in) |
| Overall height | 55.9 mm (2.20 in) |
| Outer ring height | 45.5 mm (1.79 in) |
| Inner ring height | 45.5 mm (1.79 in) |
| Outer ring bore | 545.6 mm (21.48 in) |
| Inner ring outside diameter | 542.5 mm (21.36 in) |
| All diameters on drawing | 25.51 in (648.0 mm), 22.95 in (582.9 mm), 21.48 in (545.6 mm), 21.44 in (544.6 mm), 21.40 in (543.6 mm), 21.36 in (542.5 mm), 17.60 in (447.0 mm) |
| All heights on drawing | 2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.47 in (11.9 mm) |
| Diametral pitch | 4 |
| Number of teeth | 72 |
| Pitch diameter | 18 in |
| Pressure angle | 20° |
| Material | Steel, 50Mn |
| Approx. weight | 303 lb (137 kg) |
Dimensions from our 3D model; confirm against the certified drawing. Load ratings and life calculations available from our engineers.
Crosses to
| Rotek | L6-22N9Z |
|---|
Interchange based on published dimensions; our engineers confirm fit before quoting.
CAD & documents
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Standard lead time 14–16 weeks; expediting available for an additional charge. Pricing quoted within 1–2 business days. Matching pinions available.
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