Drawing Library   Linear actuator

JWB (Ball screw type )

Model No.  JWB~

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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~

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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~

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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

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