Shaft Coupling
Coupling is a core component that transmits power and motion
from the driving shaft to the driven part while absorbing misalignment
and any possible factors that could reduce efficiency of machines
(e.g. vibration, noise, electric current, etc.)
SFC Series
Urethane Flexible Coupling 
Set-screw
Dimensions / Performance
| Model | CAD | Size (±2mm) | Screw | Max. Torque (N·m) |
Max. rpm (min-1) |
Mass (g) |
Permissible Misalignment | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | Size | Fastening Torque (N·m) |
Angular (˚) |
Parallel (mm) |
End- play (mm) |
|||||
| SFC-29 |  |
25 | 28 | 18.7 | M4 | 1.7 | 0.35 | 3,000 | 19 | 10 | 2 | 1.5 |
| SFC-38 | |
32 | 35 | 23 | M4 | 1.7 | 1.35 | 3,000 | 38 | 10 | 2.5 | 2 |
| SFC-48 | |
43 | 50 | 26.5 | M5 | 4 | 1.8 | 3,000 | 60 | 12 | 2.5 | 2 |
| SFC-54 | |
50 | 59 | 29.5 | M6 | 7 | 4.5 | 3,000 | 140 | 12 | 3 | 2 |
Standard Inner Diameter (ID)
| Model | Standard Inner Diameter (d1, d2) (mm) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 4 | 5 | 6 | 8 | 10 | 12 | 14 | 15 | 16 | |
| SFC-29 | ● | ● | ● | ● | ● | ||||
| SFC-38 | ● | ● | ● | ● | |||||
| SFC-48 | ● | ● | ● | ● | |||||
| SFC-54 | ● | ● | ● | ● | ● | ||||
※ Keyway is NOT available for all sized SFC series.