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2. Ball screw - Wikipedia

   en.wikipedia.org/wiki/Ball_screw

   Two ball screws, including close-ups of the ball assembly of the top screw. Left inset: recirculating tube removed showing retainer bracket, loose balls and tube. Right inset: closer view of the nut cavity. A ball screw (or ballscrew) is a mechanical linear actuator that translates rotational motion to linear motion with little friction.

3. Actuator - Wikipedia

   en.wikipedia.org/wiki/Actuator

   On the other hand, some actuators are intrinsically linear, such as piezoelectric actuators. Conversion between circular and linear motion is commonly made via a few simple types of mechanism including: Screw: Screw jack, ball screw and roller screw actuators all operate on the principle of the simple machine known as the screw. By rotating the ...

4. Roller screw - Wikipedia

   en.wikipedia.org/wiki/Roller_screw

   Roller screws can surpass ball screws in regard to positioning precision, load rating, rigidity, speed, acceleration, and lifetime. Standard roller screw actuators can achieve dynamic load ratings above 130 tons of force (exceeded in single-unit actuator capacity only by hydraulic cylinders ).

5. THK Co., Ltd. - Wikipedia

   en.wikipedia.org/wiki/THK_CO.,_LTD.

   The headquarters are in Tokyo. Since it was founded in April 1971, the company has developed into an international company. THK shares have been listed on the Tokyo Stock Exchange's first segment [3] since 2001. As 2022, THK has 37 manufacturing facilities in Japan, Europe, North and South America and Asia including associated companies. [4]

6. Linear actuator - Wikipedia

   en.wikipedia.org/wiki/Linear_actuator

   A traveling-nut linear actuator has a motor that stays attached to one end of the lead screw (perhaps indirectly through a gear box), the motor spins the lead screw, and the lead nut is restrained from spinning so it travels up and down the lead screw. A traveling-screw linear actuator has a lead screw that passes entirely through the motor.

7. Linear-motion bearing - Wikipedia

   en.wikipedia.org/wiki/Linear-motion_bearing

   A linear-motion bearing or linear slide is a bearing designed to provide free motion in one direction. There are many different types of linear motion bearings.. Motorized linear slides such as machine slides, X-Y tables, roller tables and some dovetail slides are bearings moved by drive mechanisms.