Drawing Library Linear actuator
JWB (Ball screw type )
Model No. JWB~
JWB (Ball Screw Type) is a jack with rolling friction that enables energy-saving operation.
- ・Major components include an accurate ball screw and a high-precision worm gear.
- ・High Efficiency :
High efficiency due to the ball screw and large thrust can be obtained with a small driving source. - ・High-Speed :
High-efficiency, high-speed operations can be realized compared to the trapezoidal screw type. - ・Longevity :
Using the highly-reliable ball screw allows for a long operating life. - ※Self-locking is not provided, so a brake unit is required.
Basic Capacity kN
4.90~980
Screw type
Ball screw
Stroke mm
100~2000
JWH (High lead ball screw type )
Model No. JWH~
Using the high-lead ball screw, the JWH (high-lead ball screw type) provides higher operations (up to 4 times) at the same input shaft rpm as the JWB type.
- ・The primary components are the high lead ball screw and precision worm gear.
- ・Higher Operating Speed :
With the highly-reliable high-lead ball screw used, a maximum screw shaft speed of 7.5m/min is possible. - ・Low Noise :
Requires less input rpm at the drive and reducer units to run at the same speed as the JWB (ball screw type), enabling quiet jack operations. - ※Self-locking is not provided, so a brake unit is required.
Basic Capacity kN
9.80~196
Screw type
High Lead Ball Screw
Stroke mm
100~2000
JWM (Trapezoidal screw type )
Model No. JWM~
The JWM (trapezoidal screw thread type) is a standard type jack suitable for low-speed, low-frequency operations.
- ・Main components include an aligning trapezoidal screw and a high-precision worm gear.
- ・Economical :
Simple and compact structure makes this type economical. - ・Low speed ・Infrequent operation :
Ideal for low-speed, low-frequency applications due to sliding contact of the trapezoidal screw. - ・Holds heavy loads :
The trapezoidal screw thread has a self-locking feature in terms of calculation and load retention is possible.
※In situations where the self-locking function will not work due to vibration and shock. - ・Stainless steel screw type is also available. :
For two models, JWM025 and JWM050, the austenitic stainless steel made screw shafts have been standardized. - ・Left hand screw type is also available. :
The left hand type has same input direction of rotation, but moves in a direction opposite of the right hand type.
Basic Capacity kN
1.96~980
Screw type
Trapezoidal Screw
Stroke mm
100~2000