21 SeriesExternal gearFairfield Engineering STB12025XFR0601
21E.0644.19.003 Slewing Ring Bearing
21 Series slewing ring bearing, external gear, 740 mm OD × 534 mm ID. Interchangeable with Fairfield Engineering STB12025XFR0601.
Specifications
| SlewPro part number | 21E.0644.19.003 |
|---|---|
| Series | 21 Series |
| Bearing design | Four-point contact, single-row ball |
| Gear | External gear |
| Raceway diameter | 644 mm (25.35 in) |
| Outside diameter | 740.4 mm (29.15 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) |
| Inner ring height | 45.5 mm (1.79 in) |
| Outer ring bore | 646.4 mm (25.45 in) |
| Inner ring outside diameter | 641.6 mm (25.26 in) |
| All diameters on drawing | 29.15 in (740.4 mm), 25.45 in (646.4 mm), 25.26 in (641.6 mm), 23.50 in (596.9 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) |
| Diametral pitch | 4 |
| Number of teeth | 115 |
| Pitch diameter | 28.75 in |
| Pressure angle | 20° |
| Approx. weight | 114 lb (52 kg) |
Dimensions from our 3D model; confirm against the certified drawing. Load ratings and life calculations available from our engineers.
Crosses to
| Fairfield | Engineering STB12025XFR0601 |
|---|
Interchange based on published dimensions; our engineers confirm fit before quoting.
CAD & documents
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