1. LER Series / Continuous Rotation Type
　Electric Rotary Table
LER Series / Continuous Rotation Type
LER10
LER30
LER50

2. 1. Features Continuous rotation Origin point signal
degree rotation
2. Reset accumulated angle 0 degree
automatically in every 360 degree rotation.
3. Capable of continuous rotation
in CW and CCW direction.
Origin point signal
by proximity sensor
1. Input the proximity sensor signal
to the controller.
Adjusting origin point
1. By adjusting the proximity sensor,
　　 origin point may adjust in +/-30 degree. CW
CCW
Proximity sensor
- The LER series has three sizes in total.
The built-in motor realizes a low profile and space saving structure.
Product variations in addition to the basic type are:
A high precision table type with high precision bearing
A high positioning repeatability type with external stopper (rotation angle 90 or 180 degree)
　Mounting variations
Mounting on body possible from top or bottom surface
Table is hollow which allows accommodation of wiring and piping
Proximity dog

3. 2. Background of Development
Add continuous rotation type in LER series
　 1. Use in Index table.
Rotation control
　　1. No impact rotation with position control
　　2. Multiple point positioning
　　3. Easy setting by a digital control
（setting angular speed, angular acceleration, angular deceleration, etc)
Varied type
　　1. Hi-accuracy positioning repeatability
　 Positioning repeatability: +/-0.05 degree
2. Hi-accuracy Table (Hi-accuracy bearing)
Basic
High precision
The positioning repeatability (for intermediate stop) is +/-0.05 degrees. It can be improved with an external stopper to +/-0.01 degrees.
The table precision can be selected like the MSQ series from:
Roll bearing for basic type and high precision bearing for high precision type
High precision bearing
Rolling element bearing
The movement in the direction of table radial thrust is reduced.

4. 3. Applications General machinery Capable in all rotational transfer.
In case of vertical transfer, a variation in load occurs depending on the position at time of rotation, but the speed can be controlled to a certain amount.
In combination with an electric gripper, after a work piece is gripped, rotation and transfer are possible.

5. 4. Specifications LER10 LER30 LER50 Model LER10K-1 LER10J-1 360 0.32
Rotation [degree]
360
Maximum torque [Nm]
0.32
0.22
Rotation Speed [degree/s]
20~280
30~420
Positioning repeatability [degree]
+/-0.05
LER30
Model
LER30K-1
LER30J-1
Rotation [degree]
360
Maximum torque [Nm]
1.2
0.8
Rotation Speed [degree/s]
20~280
30~420
Positioning repeatability [degree]
+/-0.05
LER50
For all three sizes, two types of torque and an external stopper for 90 or 180 degree are available.
The maximum rotational speed is 420 degree/sec.
The maximum rotational torque is 0.3Nm for LER10, 1.2Nm for LER30 and 10Nm for LER50.
The maximum speed shown in the table is for no load, and can vary depending on the work load transferred vertically.
Model
LER50K-1
LER50J-1
Rotation [degree]
360
Maximum torque [Nm] 10
6.6
Rotation Speed [degree/s]
20~280
30~420
Positioning repeatability [degree]
+/-0.05

6. 5. Construction Warm wheel Warm Motor Belt Ball bearing
The power of the motor is transmitted to the worm gear through the belt and pulley (a type with a 1.5 time deceleration rate is also available), and used for actuating the moving parts (worm wheel and table).
High rigidity bearing also available.
The worm gear is a gear that can rotate a comparatively large worm wheel, and achieve a large deceleration rate (30 times the gear ratio) with only one stage. The worm gear used for the LER series is a special type with limited backlash and high precision rotation.

7. 7. How to Order

8. 8. Dimensions W H2 L H1 Size W L H1 H2 Basic High precision 10 87 8332 17 30
115.5
107 40 13 22 50
147.5
127 52 16 26