Disc Couplings Servo - Fine, for Servo Motors (High Positioning Accuracy)
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MISUMI
- Disc Couplings "Servo-Fine" for Servo Motors (High Rigidity), SCXW / SCXWK type from MISUMI.
- 2 types of discs coupling available, Double Disc type (SCXW) and Double Disc with Keyway Bore type (SCXWK).
- Tolerances for d1 and d2 are values before slit machining.
- The lateral, angular, and axial misalignment values shown are for each occurring individually. When multiple misalignments are occurring simultaneously, the allowable maximum value of each will be reduced to be half.
- Tapped hole for clamp screw might go through for some sizes.
| Double Disc Type | Double Disc Type - Keywayed Bore (Keywayed Bore d1, d2) | |
| SCXW | SCXWK | |
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[ ! ] Recommended Tolerance of Shaft Diameter: h7.
[ ! ] Tolerances for d1 and d2 are values before slit machining.
[ ! ] The lateral, angular, and axial misalignment values shown are for each occurring individually. When multiple misalignments are occurring simultaneously, the allowable maximum value of each will be reduced to 1/2.
| Type | [A]Included Screw | [M] Material | [S] Surface Treatment | |||
| Main Body | Disc | Screw | Main Body | Screw | ||
| SCXW SCXWK | Hex Socket Head Cap Screw | Aluminum Alloy | Stainless steel | SCM435 | Clear Anodize Treatment | Black Oxide Film |
| Set Screw | ||||||
Specifications/Overview
| Keyway Dimension | |||||||||
 | Shaft bore diameter d1, d2 | b | t | Key Nominal Dim. b × h | Set Screw | ||||
| Standard Dimensions | Tolerance | Standard Dimensions | Tolerance | Size | Tightening Torque (N⋅m) | ||||
| 8·10 | 3 | ±0.0125 | 1.4 | +0.1 0 | 3 × 3 | M2 | 0.3 | ||
| 12 | 4 | ±0.0150 | 1.8 | 4 × 4 | M3 | 0.7 | |||
| 14 | 5 | 2.3 | 5 × 5 | M4 | 1.7 | ||||