Drawing Library Servo Motor Reducer
Worm gearheads (Click here for hypoid gearheads and helical gearheads)
series
EWJMK/EWMK: These are types that are basically Foot mount. Sizes 70 and below are the EWJMK series, and sizes 80 and above are the EWMK series.
SWJMK/SWMK: These are types based on flange mounting and on-shaft mounting. Sizes 70 and below are the SWJMK series, and sizes 80 and above are the SWMK series.
size
Indicates the size of the reducer.
Mounting Position
E or T: E for EWJMK and SWJMK series,
For the EWMK and SWMK series, it is T.
E can be installed in all directions, and T is a type where the input shaft is above the output shaft.
B: This type has the input shaft lower than the output shaft.
V: A type in which the output shaft is vertical.
Please refer to the diagram below for details.
Reduction ratio
Indicates the reduction ratio.
Shaft arrangement
Indicates the relationship between the mounting surface and the input/output shaft.
Please refer to the diagram below for details.
Mount Code
Specify the mount code that matches the motor you are installing.
| Mounting Position | E, T | V |
|---|---|---|
| Shaft arrangement | ![]() |
![]() |
| size | 35~63 | 70 | 80, 100 | ||
|---|---|---|---|---|---|
| Mounting Position | E | E | T | B | V |
| Shaft arrangement | ![]() |
![]() |
![]() |
![]() |
![]() |
Motor mount dimension diagram
Unit: mm
| size | Mount Code By motor manufacturer Compatibility list |
Coupling | Motor mount dimensions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Model number | Allowable Torque N・m |
MA | MB | MC | MD | ME | ML | MS | MT | ||
| EWJMK35 SWJMK35 |
E4DC | NES70W | 7 | □60 | Φ50G7 | M5 depth 10 (PCD70) |
5 | 80 | 25 | Φ8 | M3 |
| E4HC | 30 | Φ14 | |||||||||
| EWJMK42 SWJMK42 |
E4DC | NES70W | 7 | □60 | Φ50G7 | M5 depth 10 (PCD70) |
5 | 80 | 25 | Φ8 | M3 |
| E4HC | 30 | Φ14 | |||||||||
| EWJMK50 SWJMK50 |
G2HC | NES250W | 25 | □80 | Φ70G7 | M6 depth 10 (PCD90) |
5 | 110 (EWJMK) 100 (SWJMK) |
30 | Φ14 | M4 |
| G5LC | 40 | Φ19 | |||||||||
| EWJMK63 SWJMK63 |
G2HC (SWJMK only) |
NES250W | 25 | □80 | Φ70G7 | M6 depth 10 (PCD90) |
5 | --- | 30 | Φ14 | M4 |
| G5LC | 40 | Φ19 | |||||||||
| K2LC | NES800W | 80 | □130 | Φ110G7 | M8 depth 13 (PCD145) |
8 | --- | 40 | Φ19 | M6 | |
| K3YC | 55 | Φ24 | |||||||||
| L1MC | NES1300W | 130 | □176 | Φ114.3G7 | M12 depth 16 (PCD200) |
8 | --- | 55 | Φ22 | M6 | |
| L1PC | 55 | Φ28 | |||||||||
| L1RC | 79 | Φ35 | |||||||||
| EWJMK70 SWJMK70 |
G2HC (SWJMK only) |
NES250W | 25 | □80 | Φ70G7 | M6 depth 10 (PCD90) |
5 | --- | 30 | Φ14 | M4 |
| G5LC (SWJMK only) |
40 | Φ19 | |||||||||
| K2LC | NES800W | 80 | □130 | Φ110G7 | M8 depth 13 (PCD145) |
8 | --- | 40 | Φ19 | M6 | |
| K3YC | 55 | Φ24 | |||||||||
| L1MC | NES1300W | 130 | □176 | Φ114.3G7 | M12 depth 16 (PCD200) |
8 | --- | 55 | Φ22 | M6 | |
| L1PC | 55 | Φ28 | |||||||||
| L1RC | 79 | Φ35 | |||||||||
| EWMK80 SWMK80 |
K2LC | NES800W | 80 | □130 | Φ110G7 | M8 depth 13 (PCD145) |
8 | --- | 40 | Φ19 | M6 |
| K3YC | 55 | Φ24 | |||||||||
| L1MC | NES1300W | 130 | □176 | Φ114.3G7 | M12 depth 16 (PCD200) |
8 | --- | 55 | Φ22 | M6 | |
| L1PC | 55 | Φ28 | |||||||||
| L1RC | 79 | Φ35 | |||||||||
| EWMK100 SWMK100 |
L1MC | NES1300W | 130 | □176 | Φ114.3G7 | M12 depth 16 (PCD200) |
8 | --- | 55 | Φ22 | M6 |
| L1PC | 55 | Φ28 | |||||||||
| L1RC | 79 | Φ35 | |||||||||








