SFC [L] Fixed-Length Type
You can specify the total length of the double-element type in 1-mm increments within the applicable range. By adjusting the dimensions of the spacers positioned in the middle, the system can accommodate the required clearance between the drive and driven elements. Additionally, changing the spacer length allows for a larger allowable eccentricity, enabling more flexible operation.
[Specifications]
| Model | Shape TYPE | Allowable Torque | Tolerance | Maximum Rotational Speed | Moment of Inertia | Mass | Price | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| [N·m] | Eccentricity [mm] | Angular displacement | Axial | [min⁻¹] | [kg·m²] | [kg] | [yen] | |||||
| L min | L Max | [°] | [mm] | Min. L | Min. L | Min. L | Max. L | |||||
| SFC-005DA2 | C | 0.6 | 0.03 | 0.2 | 0.5 (per side) | ±0.1 | 10,000 | 0.33×10⁻⁶ | 0.62×10⁻⁶ | 0.009 | 0.017 | 8540 |
| SFC-010DA2 | C | 1 | 0.08 | 0.44 | 1 (per side) | ±0.2 | 10,000 | 0.72×10⁻⁶ | 1.38×10⁻⁶ | 0.014 | 0.026 | 7230 |
| SFC-020DA2 | C | 2 | 0.1 | 0.46 | 1 (per side) | ±0.33 | 10,000 | 3.02×10⁻⁶ | 5.30×10⁻⁶ | 0.031 | 0.054 | 8340 |
| SFC-025DA2 | C | 4 | 0.09 | 0.46 | 1 (per side) | ±0.38 | 10,000 | 4.55×10⁻⁶ | 7.95×10⁻⁶ | 0.036 | 0.061 | 8990 |
| SFC-030DA2 | A | 5 | 0.11 | 0.48 | 1 (per side) | ±0.4 | 10,000 | 6.09×10⁻⁶ | 12.80×10⁻⁶ | 0.046 | 0.085 | 9520 |
| B | 8.11×10⁻⁶ | 14.82×10⁻⁶ | 0.053 | 0.091 | ||||||||
| C | 10.22×10⁻⁶ | 16.93×10⁻⁶ | 0.061 | 0.099 | ||||||||
| SFC-035DA2 | C | 10 | 0.15 | 0.54 | 1 (per side) | ±0.5 | 10,000 | 23.85×10⁻⁶ | 35.97×10⁻⁶ | 0.108 | 0.161 | 11,020 |
| SFC-040DA2 | A | 12 | 0.15 | 0.54 | 1 (per side) | ±0.6 | 10,000 | 25.06×10⁻⁶ | 44.76×10⁻⁶ | 0.107 | 0.174 | 13,120 |
| B | 30.89×10⁻⁶ | 50.62×10⁻⁶ | 0.116 | 0.182 | ||||||||
| C | 37.58×10⁻⁶ | 57.31×10⁻⁶ | 0.13 | 0.197 | ||||||||
| SFC-050DA2 | A | 25 | 0.16 | 0.63 | 1 (per side) | ±0.8 | 10,000 | 77.42×10⁻⁶ | 144.3×10⁻⁶ | 0.205 | 0.347 | 16,120 |
| B | 97.97×10⁻⁶ | 164.8×10⁻⁶ | 0.225 | 0.365 | ||||||||
| C | 120.8×10⁻⁶ | 187.6×10⁻⁶ | 0.252 | 0.394 | ||||||||
| SFC-055DA2 | C | 40 | 0.16 | 0.6 | 1 (per side) | ±0.84 | 10,000 | 226.8×10⁻⁶ | 325.0×10⁻⁶ | 0.378 | 0.538 | 20,190 |
| SFC-060DA2 | A | 60 | 0.19 | 0.63 | 1 (per side) | ±0.9 | 10,000 | 210.8×10⁻⁶ | 340.1×10⁻⁶ | 0.382 | 0.567 | 23,690 |
| B | 269.9×10⁻⁶ | 399.2×10⁻⁶ | 0.424 | 0.609 | ||||||||
| C | 333.5×10⁻⁶ | 462.8×10⁻⁶ | 0.484 | 0.669 | ||||||||
- *Please note that the shape type (A, B, or C) is automatically determined based on the combination of hole diameters you select, so you cannot specify it.
- *Please note that the allowable torque may be limited by the holding force of the shaft fastening section; please verify this using the standard bore diameter of the SFC (DA2).
- *The maximum rotational speed does not take dynamic balance into account.
- *The moment of inertia and mass are based on the maximum bore diameter.
- *Please refer to the SFC(DA2) specifications for the values of each spring constant.
[Dimensions]
| Model | Shape TYPE | d1 | d2 | D | N | L | LF | S | A1 | A2 | C | d3 | K | M | Tightening torque | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Minimum | Max | Minimum | Max | Standard | Minimum | Max | [N·m] | ||||||||||||
| SFC-005DA2 | C | 3 | 6 | 3 | 6 | 16 | － | 23.2 | 21 | 40 | 7.85 | 1 | － | 4.8 | 2.5 | 6.5 | 6.5 | 1-M2 | 0.4–0.5 |
| SFC-010DA2 | C | 3 | 8 | 3 | 8 | 19 | － | 25.9 | 24 | 45 | 9.15 | 1.05 | － | 5.8(6) | 3.15 | 8.5 | 8.5 | 1–M2.5 (M2) | 1.0–1.1 (0.4–0.5) |
| SFC-020DA2 | C | 4 | 10 | 4 | 11 | 26 | － | 32.3 | 29 | 50 | 10.75 | 1.65 | － | 9.5 | 3.3 | 10.6 | 10.6 | 1-M2.5 | 1.0–1.1 |
| SFC-025DA2 | C | 5 | 14 | 5 | 14 | 29 | － | 32.8 | 29 | 50 | 10.75 | 1.9 | － | 11 | 3.3 | 15 | 14.5 | 1–M2.5 | 1.0–1.1 |
| SFC-030DA2 | A | 5 | 10 | 5 | 10 | 34 | 21.6 | 37.8 | 34 | 55 | 12.4 | 2.5 | 8 | － | 3.75 | 15 | 14.5 | 1-M3 | 1.5–1.9 |
| B | Over 10 | 16 | 12.5 | ||||||||||||||||
| C | Over 10 | 14 | － | － | |||||||||||||||
| SFC-035DA2 | C | 6 | 16 | 6 | 19 | 39 | － | 48 | 43 | 65 | 15.5 | 3 | － | 14 | 4.5 | 17 | 17 | 1-M4 | 3.4–4.1 |
| SFC-040DA2 | A | 8 | 15 | 8 | 15 | 44 | 29.6 | 48 | 43 | 65 | 15.5 | 3 | 11 | － | 4.5 | 20 | 19.5 | 1-M4 | 3.4–4.1 |
| B | Over 15 | 24 | 17 | ||||||||||||||||
| C | Over 15 | 19 | － | － | |||||||||||||||
| SFC-050DA2 | A | 8 | 19 | 8 | 19 | 56 | 38 | 59.8 | 53 | 80 | 20.5 | 2.4 | 14.5 | － | 6 | 26 | 26 | 1-M5 | 7.0–8.5 |
| B | Over 19 | 30 | 22 | ||||||||||||||||
| C | Over 19 | 25 | － | － | |||||||||||||||
| SFC-055DA2 | C | 10 | 30 | 10 | 30 | 63 | － | 68.7 | 60 | 85 | 24 | 2.6 | － | 23 | 7.75 | 31 | 31 | 1-M6 | 14–15 |
| SFC-060DA2 | A | 11 | 24 | 11 | 24 | 68 | 46 | 73.3 | 65 | 90 | 25.2 | 3.2 | 17.5 | － | 7.75 | 31 | 31 | 1-M6 | 14–15 |
| B | Over 24 | 35 | 26.5 | ||||||||||||||||
| C | Over 24 | 30 | － | － | |||||||||||||||
- *Please note that the shape type (A, B, or C) is automatically determined based on the combination of hole diameters you select, so you cannot specify it.
- *The designation for Clamp Bolt M is based on the quantity and thread size; the quantity refers to the number of bolts on one side of the hub.
- *The values in parentheses for SFC-010 apply when d1 or d2 is 8 mm.
- *The total length L that can be accommodated is the range from the minimum to the maximum L dimension shown in the table above. Please specify the length in 1-mm increments.
- *If the L dimension is shorter than the standard, the left and right clamp bolts will be offset by 45°.
- *Please refer to the standard bore diameter for SFC (DA2).
