MRG-C
Rigid coupling – Clamping type
Dimension Drawing
Dimensions/Specifications/CAD
| Part Number | A | L | W | F | G | M | Wrench Torque (N･m) |
|---|---|---|---|---|---|---|---|
| MRG-16C | 16 | 7.5 | 16 | 3.75 | 5 | M2.5 | 1 |
| MRG-20C | 20 | 9.5 | 20 | 4.75 | 6.5 | M2.5 | 1 |
| MRG-25C | 25 | 12 | 25 | 6 | 9 | M3 | 1.5 |
| MRG-32C | 32 | 15.5 | 32 | 7.75 | 11 | M4 | 2.5 |
| MRG-40C | 40 | 19.5 | 40 | 9.5 | 14 | M5 | 4 |
| MRG-50C | 50 | 24.4 | 50 | 12 | 18 | M6 | 8 |
| MRG-65C | 65 | 31.9 | 65 | 16 | 23 | M8 | 16 |
| Part Number | Max. Bore Diameter (mm) | Rated Torque* (N・m) | Max. Torque* (N・m) | Max. Rotational (min-1) | Mass** (g) |
|---|---|---|---|---|---|
| MRG-16C | 6 | 1 | 2 | 39000 | 8.3 |
| MRG-20C | 8 | 2.5 | 5 | 31000 | 15 |
| MRG-25C | 10 | 4.5 | 9 | 25000 | 29 |
| MRG-32C | 14 | 10 | 20 | 19000 | 51 |
| MRG-40C | 18 | 20 | 40 | 15000 | 104 |
| MRG-50C | 24 | 25 | 50 | 12000 | 197 |
| MRG-65C | 30 | 35 | 70 | 9000 | 446 |
* Correction of rated torque and max. torque due to load fluctuation is not required.
** These are values with max. bore diameter.
| Part Number | Stock Bores D1-D2 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 6 | 8 | 10 | 12 | 14 | 15 | 16 | 18 | 19 | 20 | 25 | 28 | 30 | |
| MRG-16C | ● | ● | – | – | – | – | – | – | – | – | – | – | – | – |
| MRG-20C | – | ● | ● | – | – | – | – | – | – | – | – | – | – | – |
| MRG-25C | – | – | ● | ● | – | – | – | – | – | – | – | – | – | – |
| MRG-32C | – | – | – | ● | ● | ● | – | – | – | – | – | – | – | – |
| MRG-40C | – | – | – | – | – | – | ● | ● | ● | – | – | – | – | – |
| MRG-50C | – | – | – | – | – | – | – | – | – | ● | ● | – | – | – |
| MRG-65C | – | – | – | – | – | – | – | – | – | – | – | ● | ● | ● |
All products are provided with hex socket set screws.
In a case where the bore diameter is φ 4 or less, the set screw is used in only one place.
Recommended dimensional allowances of applicable shaft diameter are h6 and h7.
Material/Finish
| MRG/MRG-C/MRG-W | MRGS/MRGS-C/MRGS-W | |
|---|---|---|
| Main Body | A2017 Alumite Treatment | SUS303 |
| Hex Socket Set Screw | SCM435 Ferrosoferric Oxide Film | SUSXM7 |
| Hex Socket Head Cap Screw | SCM435 Ferrosoferric Oxide Film | SUSXM7 |
Structure
Set screw type
MRG Aluminum alloy hub MRG,MRGS
MRGS Made of all stainless steel MRG,MRGS
Clamping type
MRG-C Aluminum alloy hub MRG-C,MRGS-C
MRGS-CMade of all stainless steel MRG-C,MRGS-C
Split type
MRG-W Aluminum alloy hub MRG-W,MRGS-W
MRGS-W Made of all stainless steel MRG-W,MRGS-W
Characteristics
- Applicable motors
MRG MRGS Servomotor ◎ ◎ Stepping motor ◎ ◎ General-purpose motor – – ◎：Excellent ○：Very good
- Property
MRG MRGS Zero Backlash ◎ ◎ High Torque ◎ ○ High Torsional Stiffness ◎ ◎ Corrosion Resistance (All S.S.) – ◎ ◎：Excellent ○：Very good
- These are rigid-type couplings.
- Light weight and ultra small moment of inertia. High response.
- There are two types of units made of aluminum alloy or all stainless steel.
- There are three attachment methods: set screw type, clamping type, and split type.
- Sizes of φ40 – φ65 in outside diameter have been added.
Application
High precision XY stage/Machine tool/Cleaning equipment
Selection
The area bounded by the shaft diameter and rated torque indicates is the selection size.
