21 SeriesPlain (no gear)Kaydon RK6-25P1ZRotek L6-25P9Z
21P.0644.19.000 Slewing Ring Bearing
21 Series slewing ring bearing, plain (no gear), 748 mm OD × 534 mm ID. Interchangeable with Kaydon RK6-25P1Z, Rotek L6-25P9Z.
Specifications
| SlewPro part number | 21P.0644.19.000 |
|---|---|
| Series | 21 Series |
| Bearing design | Four-point contact, single-row ball |
| Gear | Plain (no gear) |
| Raceway diameter | 644 mm (25.35 in) |
| Outside diameter | 748 mm (29.45 in) |
| Inside diameter | 533.9 mm (21.02 in) |
| Overall height | 55.9 mm (2.20 in) |
| Outer ring height | 45.5 mm (1.79 in) |
| Outer ring bore | 645.4 mm (25.41 in) |
| Inner ring outside diameter | 642.6 mm (25.30 in) |
| All diameters on drawing | 29.45 in (748.0 mm), 26.89 in (683.0 mm), 25.41 in (645.4 mm), 25.36 in (644.1 mm), 25.30 in (642.6 mm), 23.82 in (605.0 mm), 21.02 in (533.9 mm) |
| All heights on drawing | 2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.47 in (11.9 mm) |
| Material | Steel, 50Mn |
| Approx. weight | 84.8 lb (38 kg) |
Dimensions from our 3D model; confirm against the certified drawing. Load ratings and life calculations available from our engineers.
Crosses to
| Kaydon | RK6-25P1Z |
|---|---|
| Rotek | L6-25P9Z |
Interchange based on published dimensions; our engineers confirm fit before quoting.
CAD & documents
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