FWA Series slewing drives
Full-throat worm slewing drives with cup seal. 14 models and 95 configurations designed so far, with new designs added often.
Which enclosed drive? Pick the worm type, then the seal. A cup seal is the better sealing arrangement for wet, dusty or washdown conditions.
| Lip seal | Cup seal | |
| Hourglass worm | FGE Series | FGA Series |
| Full-throat worm | FWE Series | FWA Series |
Need it sealed on both the outer and inner faces? The FGB Series adds a second seal to the FGA design.
Full-throat worm slewing drives with cup seal
FWA Series
A full-throat worm with the face sealed by a cup seal instead of a lip seal, for a better sealing arrangement up to IP65 against dust and water. Single or double worm (double the torque), self-locking or non-self-locking, metric or inch mounting.
Applications
- Truck-mounted cranes
- Aerial work platforms
- Drilling machines
- Rotating platforms

| Model | Output torque (kN·m) | Tilting moment (kN·m) | Holding torque (kN·m) | Ratio | Weight (lb) | Configurations |
|---|---|---|---|---|---|---|
| FWA7 | 3.5 | 14.7 | 20.6 | 47:1 | 77.2 | 0 |
| FWA9 | 8.0 | 35.6 | 39.8 | 62:1 | 114.6 | 0 |
| FWA12 | 9.5 | 57.0 | 44.3 | 79:1 | 147.7 | 19 |
| FWA14 | 10.8 | 71.2 | 49.5 | 86:1 | 165.3 | 17 |
| FWA14-2 | 16.2 | 71.2 | 74.0 | 86:1 | 198.4 | 0 |
| FWA14C | 10.8 | 71.2 | 49.5 | 86:1 | — | 1 |
| FWA17 | 13.0 | 142.4 | 74.0 | 104:1 | 213.8 | 22 |
| FWA17-2 | 19.4 | 142.4 | 110.0 | 104:1 | 253.5 | 0 |
| FWA19 | 18.5 | 196.0 | 82.0 | 94:1 | 264.6 | 14 |
| FWA21 | 28.7 | 203.0 | 107.0 | 90:1 | 374.8 | 8 |
| FWA21-2 | 48.0 | 203.0 | 181.0 | 90:1 | 440.9 | 0 |
| FWA25 | 34.2 | 310.0 | 160.0 | 104:1 | 440.9 | 14 |
| FWA25-2 | 58.0 | 310.0 | 275.0 | 108:1 | 595.2 | 0 |
| FWA28 | 35.0 | 450.0 | 200.0 | 137:1 | 493.8 | 0 |
Talk to an engineer
Need help selecting the right part? Our engineers will size it, cross it, and quote it — usually within 1–2 business days.
Not in the catalog? We design to your application, with no engineering charge.

