- 3 to 10.5” diameter; 2 to 7.5” length
- Bore sizes from 0.5 to 4.25”
- Static torque from 40 to 5200 lb-ft
- 1400 to 3500 RPM
- Operates both dry and in oil
- Modified designs and customized assemblies available
Stationary Field Tooth Clutches
SFTC Series
Stationary Field Tooth Clutches
| Performance / Mechanical Specifications | SFTC Series — Model Size | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| SFTC - 320 | SFTC - 375 | SFTC - 450 | SFTC - 525 | SFTC - 630 | SFTC - 760 | SFTC - 895 | SFTC - 1065 | |||
| SolidWorks Model | Model: SFTC - 320 | Model: SFTC - 375 | Model: SFTC - 450 | Model: SFTC - 525 | Model: SFTC - 630 | Model: SFTC - 760 | Model: SFTC - 895 | Model: SFTC - 1065 | Model: | |
| Torque Rating (Static) | lb-ft | Model: SFTC - 320 40 | Model: SFTC - 375 80 | Model: SFTC - 450 160 | Model: SFTC - 525 320 | Model: SFTC - 630 650 | Model: SFTC - 760 1300 | Model: SFTC - 895 2600 | Model: SFTC - 1065 5200 | Model: |
| (Nm) | Model: SFTC - 320 (54.2) | Model: SFTC - 375 (108.5) | Model: SFTC - 450 (216.9) | Model: SFTC - 525 (433.9) | Model: SFTC - 630 (881.3) | Model: SFTC - 760 (1762.6) | Model: SFTC - 895 (3525.1) | Model: SFTC - 1065 (7050.2) | Model: | |
| Recommended Max Speed | rpm | Model: SFTC - 320 3500 | Model: SFTC - 375 3000 | Model: SFTC - 450 2500 | Model: SFTC - 525 2000 | Model: SFTC - 630 1600 | Model: SFTC - 760 1500 | Model: SFTC - 895 1400 | Model: SFTC - 1065 1400 | Model: |
| Body Diameter | in | Model: SFTC - 320 3.16 | Model: SFTC - 375 3.75 | Model: SFTC - 450 4.50 | Model: SFTC - 525 5.25 | Model: SFTC - 630 6.32 | Model: SFTC - 760 7.60 | Model: SFTC - 895 8.94 | Model: SFTC - 1065 10.65 | Model: |
| (mm) | Model: SFTC - 320 (80.26) | Model: SFTC - 375 (95.25) | Model: SFTC - 450 (114.30) | Model: SFTC - 525 (133.35) | Model: SFTC - 630 (160.53) | Model: SFTC - 760 (193.04) | Model: SFTC - 895 (227.08) | Model: SFTC - 1065 (270.51) | Model: | |
| Overall Length (ref) | in | Model: SFTC - 320 2.07 | Model: SFTC - 375 2.33 | Model: SFTC - 450 2.61 | Model: SFTC - 525 2.94 | Model: SFTC - 630 3.55 | Model: SFTC - 760 4.23 | Model: SFTC - 895 5.04 | Model: SFTC - 1065 6.18 | Model: |
| (mm) | Model: SFTC - 320 (52.58) | Model: SFTC - 375 (59.18) | Model: SFTC - 450 (66.29) | Model: SFTC - 525 (74.68) | Model: SFTC - 630 (90.17) | Model: SFTC - 760 (107.40) | Model: SFTC - 895 (128.02) | Model: SFTC - 1065 (156.97) | Model: | |
| Rotor Bore – Min | in | Model: SFTC - 320 0.500 | Model: SFTC - 375 0.750 | Model: SFTC - 450 1.000 | Model: SFTC - 525 1.125 | Model: SFTC - 630 1.375 | Model: SFTC - 760 1.750 | Model: SFTC - 895 2.250 | Model: SFTC - 1065 2.750 | Model: |
| (mm) | Model: SFTC - 320 (12.700) | Model: SFTC - 375 (19.050) | Model: SFTC - 450 (25.400) | Model: SFTC - 525 (28.575) | Model: SFTC - 630 (34.925) | Model: SFTC - 760 (44.450) | Model: SFTC - 895 (57.150) | Model: SFTC - 1065 (69.85) | Model: | |
| Rotor Bore – Max | in | Model: SFTC - 320 1.000 | Model: SFTC - 375 1.250 | Model: SFTC - 450 1.500 | Model: SFTC - 525 1.750 | Model: SFTC - 630 2.250 | Model: SFTC - 760 2.750 | Model: SFTC - 895 3.500 | Model: SFTC - 1065 4.250 | Model: |
| (mm) | Model: SFTC - 320 (25.400) | Model: SFTC - 375 (31.750) | Model: SFTC - 450 (38.100) | Model: SFTC - 525 (44.450) | Model: SFTC - 630 (57.150) | Model: SFTC - 760 (69.85) | Model: SFTC - 895 (88.900) | Model: SFTC - 1065 (107.95) | Model: | |
SFTC Operation:
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.
