Motors are all well and good, but what about if you want to move something in a linear direction? Well, there are plenty of options, but linear actuators are ready to rumble and easy to use.

Concentric

Concentric linear actuators are the most common method for creating powerful linear motion, although they are slower and less precise than other devices.

  1. Concentric LACT4P-12V-5 Linear Actuator with Feedback: 4" Stroke, 12V, 1.7"/s
    SKU: POLOLU-2319 Brand: Pololu
    This 12 V linear actuator can be used in a variety of heavy-duty applications. The motor has 5:1 reduction gearbox that gives the actuator a dynamic load rating of 34 lbs (15 kg) and a maximum speed of 1.7 in/s (4.3 cm/s), and it is rated to withstand up to 450 lbs when not moving. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 4-inch stroke and a built-in potentiometer for position feedback.
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    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 5 to 9 day lead time
  2. Mounting Bracket for Concentric LD Linear Actuators
    SKU: POLOLU-2314 Brand: Pololu
    This machined aluminum bracket allows the Concentric LD series linear actuators to be mounted to a structure. Complete mounting hardware is included. Two brackets are required for mounting each actuator.
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    1 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by Apr 24th

Others

For projects such as 3D printers, CNC machines, and other devices which require faster linear motion, guide rails and gears are often used.

  1. Stepper Motor with 28cm Lead Screw: Bipolar, 200 Steps/Rev, 42×38mm, 2.8V, 1.7 A/Phase
    SKU: POLOLU-2268 Brand: Pololu
    This NEMA 17-size hybrid bipolar stepping motor has an integrated 28 cm (11″) threaded rod as its output shaft, turning it into a linear actuator capable of precision open-loop positioning. The included traveling nut has four mounting holes and moves 40 µm (1.6 mil) per full step; finer resolution can be achieved with microstepping. The stepper motor has a 1.8° step angle (200 steps/revolution) and each phase draws 1.7 A at 2.8 V, allowing for a holding torque of 3.7 kg-cm (51 oz-in).
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    0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Available with 5 to 9 day lead time

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