| Performance / Mechanical Specifications | SFTC Series — Model Size | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| SFTC - 320 | SFTC - 375 | SFTC - 450 | SFTC - 525 | SFTC - 630 | SFTC - 760 | SFTC - 895 | SFTC - 1065 | |||
| STP File Model | ||||||||||
| Torque Rating (Static) | lb-ft | 40 | 80 | 160 | 320 | 650 | 1300 | 2600 | 5200 | |
| Recommended Max Speed | rpm | 3500 | 3000 | 2500 | 2000 | 1600 | 1500 | 1400 | 1400 | |
| Body Diameter | in | 3.16 | 3.75 | 4.50 | 5.25 | 6.32 | 7.60 | 8.94 | 10.65 | |
| Overall Length (ref) | in | 2.07 | 2.33 | 2.61 | 2.94 | 3.55 | 4.23 | 5.04 | 6.18 | |
| Rotor Bore – Min | in | 0.500 | 0.750 | 1.000 | 1.125 | 1.375 | 1.750 | 2.250 | 2.750 | |
| Rotor Bore – Max | in | 1.000 | 1.250 | 1.500 | 1.750 | 2.250 | 2.750 | 3.500 | 4.250 | |
When current is applied to the coil in the stationary magnet body (held from rotating by an anti-rotation pin), a magnetic field is created which attracts the armature toward the rotor. As the teeth engage, torque is transmitted.
When the current is turned off, the armature slides on the splined output plate adapter. Springs pull on the armature to assist disengagement from the rotor.
