Technical Data Reducers Gear Reducer for Servo Motors TERVO Handling
This section contains general information regarding the handling of the TERVO HMTK, GMTK, SWJMK, SWMK, EWJMK, and EWMK Series.
For more information, see the instruction manual provided with the product.
Servo Motor Mounting Procedure
When the motor shaft is a key shaft
- (1)Check that the key is correctly set on the motor shaft.
- (2)Apply grease adhering to the inside of the input shaft to the motor shaft.
- (3)Align the key position of the motor shaft with the key groove of the input shaft and insert it.
This completes the motor set up procedure.
When the motor shaft is round (Input shaft clamp type )
- (1)Install the reducer so that the motor mounting surface is at the top.
- (2)Thoroughly wipe away rust, dust, rust-preventive oil, and any other materials from the motor shaft.
- (3)Remove the flange's rubber cap, and then turn the input shaft to align the bolt head with the hole position. Make sure that the set bolts are loose by using an L-spanner or similar tool.
- (4)Smoothly insert the motor shaft into the input shaft bore. Exercise caution to ensure that the motor shaft is not inserted at an angle.
- (5)After inserting the spigot facing completely, fasten the motor to the flange using the appropriate bolt and tightening torque.
- (6)Use a torque wrench to tighten the set bolt on the input shaft with the specified tightening torque.
- (7)Attach the rubber cap. This completes the motor set up procedure.
Table 1. GMTK/HMTK clamp specification set bolt tightening torque
| GMTK | HMTK | Set bolt size | Tightening torque |
|---|---|---|---|
| 0218U/L 0224U/L 0228U/L 0424U/L 0428U/L 0438U/L |
0220H 0222U 0230H 0228U 0430H 0428U 0435H 0438U |
M4 | 4.1N・m {0.41kgf・m} |
| 0728U/L 0738U/L 0742F/L 1538U/L 1542F/L |
0735H 0738U 0745H 0742U 1545H 1542U 1555H 1550U |
M5 | 8.5N・m {0.85kgf・m} |
| 2242F/L | 2245H 2242U 2255H 2250U | M6 | 14N・m {1.42kgf・m} |
Table 2. SWJMK/SWMK/EWJMK/EWMK clamp set bolt sizes
| Worm model no. | Mount code | E4 | G2/G5 | K2/K3/K4 | L1 | |
|---|---|---|---|---|---|---|
| Spigot diameter | Φ50G7 | Φ70G7 | Φ110G7 | Φ114.3G7/H7 | ||
| Mounting pitch | PCD70 | PCD90 | PCD145 | PCD200 | ||
| EWJMK35, SWJMK35 | M3 | - | - | - | ||
| EWJMK42, SWJMK42 | M3 | - | - | - | ||
| EWJMK50, SWJMK50 | - | M4 | - | - | ||
| EWJMK63, SWJMK63 | - | M4 | M6 | M6 | ||
| EWJMK70, SWJMK70 | - | - | M6 | M6 | ||
| EWMK80, SWMK80 | - | - | M6 | M6 | ||
| EWMK100, SWMK100 | - | - | - | M6 | ||
Table 3. SWJMK/SWMK/EWJMK/EWMK clamp set bolt tightening torque
| Clamp set bolt size | Tightening torque |
|---|---|
| M3 | 1.9N・m {0.19kgf・m} |
| M4 | 3.8N・m {0.39kgf・m} |
| M6 | 12N・m {1.22kgf・m} |
Tightening of clamp specification set bolt
Installation of keyed motors on input shaft clamp type
By removing the key, you can use keyed/flatted motor shafts with a clamp type in the same manner as with smooth shafts.
Set the motor's key groove (D cut) on the side 180 degrees away from the clamp slit position.
Then, mount the motor on the reducer using the same procedure for smooth shafts.
