Dimension Drawing
| Part Number | Max. Bore Diameter (mm) |
Keyway Additional Modification Max. Bore Diameter (mm) |
Rated Torque (N・m)＊1 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MOC-28-6-14 | 14 | 14 | 8 | 14 | 3000 | 2.6×10-6 | 350 | 1.5 | 3 | 24 |
＊1： If ambient temperature exceeds 30°C, be sure to correct the rated torque and max. torque with temperature correction factor shown in the following table. The allowable operating temperature of MOC is -20°C to 80°C.
＊2： These are values with max. bore diameter.
Additional Modification Service
Modified Part Number
Enter the desired bore diameter and then click [Check Modified Part Number].
| Standard bore diameter(D1) | Standard bore diameter(D2) | Modified Part Number | Price | Add to cart |
|---|---|---|---|---|
|
mm
in.
|
mm
in.
|
Cart |
| Applicable Bore Diameter D1D2 |
keyway | Key | |||||||
|---|---|---|---|---|---|---|---|---|---|
| b | t | Nominal Dimension b×h |
|||||||
| Standard Dimension | Allowance (JS9) |
Standard Dimension | Allowance | ||||||
| 6 | 7 | 2 | ±0.0125 | 1.0 | +0.1 0 |
2×2 | |||
| 8 | 9 | 10 | 3 | ±0.0125 | 1.4 | 3×3 | |||
| 11 | 12 | 4 | ±0.0150 | 1.8 | 4×4 | ||||
| 13 | 14 | 15 | 16 | 17 | 5 | ±0.0150 | 2.3 | 5×5 | |
| 18 | 19 | 20 | 22 | 6 | ±0.0150 | 2.8 | 6×6 | ||
| 24 | 25 | 28 | 30 | 8 | ±0.0180 | 3.3 | +0.2 0 |
8×7 | |
| 32 | 35 | 36 | 38 | 10 | ±0.0180 | 3.3 | 10×8 | ||
| 40 | 42 | 44 | 12 | ±0.0215 | 3.3 | 12×8 | |||
| 45 | 48 | 50 | 14 | ±0.0215 | 3.8 | 14×9 | |||
| 55 | 16 | ±0.0215 | 4.3 | 16×10 | |||||
| Standard Inch Bore Diameter D1D2 |
Keyway | |||
|---|---|---|---|---|
| Wk | T | |||
| Standard Dimension | Allowance | Standard Dimension | Allowance | |
| 1/2 | 1/8 | +0.002 0 |
0.560 | +0.01 0 |
| 9/16 | 1/8 | +0.002 0 |
0.623 | +0.01 0 |
| 5/8 | 3/16 | +0.002 0 |
0.709 | +0.01 0 |
| 11/16 | 3/16 | +0.002 0 |
0.773 | +0.01 0 |
| 3/4 | 3/16 | +0.002 0 |
0.837 | +0.01 0 |
| 13/16 | 3/16 | +0.002 0 |
0.900 | +0.01 0 |
| 7/8 | 3/16 | +0.002 0 |
0.964 | +0.01 0 |
| 15/16 | 1/4 | +0.002 0 |
1.051 | +0.01 0 |
| 1 | 1/4 | +0.002 0 |
1.114 | +0.01 0 |
| 1-1/8 | 1/4 | +0.002 0 |
1.241 | +0.01 0 |
| 1-1/4 | 1/4 | +0.002 0 |
1.367 | +0.01 0 |
| 1-3/8 | 5/16 | +0.002 0 |
1.518 | +0.01 0 |
| 1-1/2 | 3/8 | +0.002 0 |
1.669 | +0.01 0 |
| 1-5/8 | 3/8 | +0.002 0 |
1.796 | +0.01 0 |
| 1-3/4 | 3/8 | +0.002 0 |
1.922 | +0.01 0 |
- Refer to the "Couplicon Bore Diameter Additional Modification Service" for more information.
- BT： Additional modification of bore
- KT： Metric Keyway Modification (JIS Standard)
- KA： Inch Keyway Modification (AGMA Standard)
Ambient Temperature / Temperature Correction Factor
| Ambient Temperature | Temperature Correction Factor |
|---|---|
| -20°C to 30°C | 1.00 |
| 30°C to 40°C | 0.80 |
| 40°C to 60°C | 0.70 |
| 60°C to 80°C | 0.55 |
Material/Finish
| MOC | |
|---|---|
| Hub | A2017 Anodized＊1 |
| Spacer | Polyacetal with Recycled Carbon Fiber |
| Hex Socket Set Screw | SCM435 Ferrosoferric Oxide Film (Black) |
| Hex Socket Head Cap Screw | SCM435 Ferrosoferric Oxide Film (Black) |
＊1：Due to manufacturing process requirements, couplings may have bores with or without surface treatment. This does not affect the performance of the couplings.
Characteristics
- Applicable motors
| MOC | |
|---|---|
| Servomotor | ● |
| Stepping Motor | ● |
| General-purpose Motor | ◎ |
- Property
| MOC | |
|---|---|
| High Torque | ◎ |
| Allowable Misalignment | ◎ |
| Small Eccentric Reaction Force | ◎ |
| Allowable Operating Temperature | -20°C to 80°C |
- This is an oldham type flexible coupling.
- The spacer uses resin containing eco-friendly recycled carbon fiber. Higher-torque specifications than MOR.
- Slippage of hubs and a spacer allows large eccentricity and angular alignment to be accepted.
- The eccentric reaction generated by misalignment is small and the burden on the shaft is reduced.
- The simple structure allows the unit to be easily assembled.
- Compliant with the Japan Machine Accessory Association organizational standards (TES 1403).
Application
Sputtering device / Parts feeder / Industrial sewing machine / Amusement deviceSelection
Selection Based on Shaft Diameter and Rated Torque
The area bounded by the shaft diameter and rated torque indicates the selection size.
Selection Example
In case of selected parameters of shaft diameter of φ 8 and load torque of 0.4N•m, the selection size is MOC-23.Comparison of Rated Torque
Spacer's Projection Structure
Spacer's projection structure allows large angular to be effortlessly accepted. It reduces burden on the shaft.
Change in static torsional stiffness due to temperature
This is a value under the condition where the static torsional stiffness at 20°C is 100%.Changes in the static torsion spring constant within the operating temperature are shown in the graph.
Before using the unit, be aware of the deterioration of responsiveness.
