Components used in the assembly of linear or rotary motion systems, such as ball screws, lead screws, slides, stages, and actuators.

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Air Cylinders (674 suppliers)

Air cylinders are pneumatic linear actuators that are driven by a pressure differential in the cylinder's chambers. They may be single-acting (with a spring return) or double-acting.
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Ball Screws (230 suppliers)

Ball screws convert rotary motion to linear motion, or torque to thrust, and vice versa. They are primarily a power screw with a train of ball bearings riding between the screw and the nut in a recirculating track.
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Ball Slides (95 suppliers)

Ball slides are simple linear motion devices that provide smooth linear motion, accurately controlled by the rotation of the drive mechanism. 
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Ball Splines (31 suppliers)

Ball splines provide nearly friction-free linear motion while simultaneously transmitting torsional loads. The path of the bearing balls is straight, not helical, which allows for a very efficient coupling device suitable for a variety of applications.
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Crossed roller slides are simple linear motion devices that consist of a stationary base and a moving carriage. The rollers are crossed at a 90° angle in an alternating fashion and are enclosed in the rails, which have a machined V-shaped groove to support the rollers.
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Dovetail Slides (30 suppliers)

Dovetail slides are linear motion devices that allow motion and positioning along a linear axis.
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Electric rotary actuators drive components rotationally via electromagnetic power. They typically have control and indexing capabilities.
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Feed Escapements (26 suppliers)

Feed escapements are used for individually feeding parts from hoppers, conveyors, magazines, tracks, and vibratory feeders.
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Hydraulic Cylinders (820 suppliers)

Hydraulic cylinders are actuation devices that utilize pressurized hydraulic fluid to produce linear motion and force.
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Hydraulic rotary actuators use a pressurized, incompressible fluid to rotate mechanical components.
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Index Drives (31 suppliers)

Index drives are used to start and stop a table, conveyor or other equipment at precise intervals. Types of index drives include cam index drives, ring index drives, and roller gear index drives.
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Lead screws and ACME screws are used to drive a nut in linear motion via direct contact between the screw and the nut. Lead screws usually incorporate proprietary screw and nut geometries and materials, and can be configured in zero-backlash arrangements.
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Linear Actuators (732 suppliers)

Electric linear actuators have an output rod that provides linear motion via a motor driven ball screw, lead screw, or ACME screw assembly. The actuator's load is attached to the end of a screw or rod and is often unsupported.
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Linear Bearings (327 suppliers)

Linear bearings are used in applications where a component needs to be moved along a straight line with high accuracy.
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Linear slides are simple linear motion devices composed of a stationary base and a moving carriage. Linear stages are slides with a drive mechanism that provide controlled, precise positioning along a linear axis.
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Multi-axis Positioning Systems make use of linear, rotary and goniometric stages, slides and drives in various combinations to create standard and custom positioning systems.
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Piezoelectric actuators are devices that produce a small displacement with a high force capability when voltage is applied. 
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Pneumatic rotary actuators use pressurized air to rotate mechanical components.
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Rack and pinion drives use a rotational motor to affect linear motion via a rack and pinion combination. They are used frequently in long-travel applications, such as machine tool table positioning, that require high stiffness and accuracy.
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Roller Screws (23 suppliers)

Roller screws convert rotary to precise linear motion in a similar manner to ball screws or lead screws.  Due to the greater number of contact points of the rollers compared to balls or thread on thread contact, a roller screw provides higher stiffness and smooth motion.
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Rotary Stages (144 suppliers)

Rotary positioning stages are devices with tables or shafts that may be rotated to any angular position. They may be driven or simple slides.
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Wear plates, wear strips and wear parts are used to reduce wear or erosion in mechanical systems.
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Z-Axis Stages (45 suppliers)

Z-axis stages are lift stages that move up and down on the vertical axis with a high degree of resolution. They are used in all kinds of applications where high-accuracy vertical positioning is required.
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