TR8 Lead Screw 2mm Pitch - 400mm

This TR8 Lead Screw is a great tool for translating rotational torque into linear motion, and is often used as a transmission for machines like 3D Printers, CNC millers and similar types of applications. It is commonly used in conjunction with stepper motors for precision movement along an axis, and allows machines like 3D printers to achieve impressive positional accuracy both horizontally and vertically.

TR8-X8-P2-L1200-001

This leadscrew has a large outer diameter of 8mm, a pitch of 2mm and 4 starts. The large diameter helps to reduce whipping and unnecessary bending, while the 2mm pitch and 4 starts means that each rotation will result in 8mm of linear movement.

Quick Spec

  • Leadscrew Length: 400mm
  • Outer Diameter: 8mm
  • Lead: 8mm
  • Pitch: 2mm
  • No. of Starts: 4
  • Thread Type: Trapezoidal (30°)
  • Net Weight: 142g

Dimensions

TR8-X8-P2-L400-002
TR8-X8-P2-L1200-004

Lead Screw VS Ball Screw

Lead screws and ball screws are both used for linear motion in machines and mechanisms, but they have distinct differences:

Mechanism

  • Lead Screw: Lead screws are simple mechanical devices with a threaded shaft (screw) and a matching threaded nut. The nut is typically rotated along the screw's threads to move along its length.
  • Ball Screw: Ball screws also consist of a threaded shaft and nut, but they employ ball bearings within the nut. These ball bearings reduce friction and allow for smoother and more efficient linear motion.

Efficiency

  • Lead Screw: Lead screws are less efficient compared to ball screws because they have higher friction due to direct contact between the screw and nut threads. This can result in more heat generation and lower accuracy.
  • Ball Screw: Ball screws are highly efficient due to the use of ball bearings. The rolling motion of the ball bearings reduces friction, making ball screws more precise and requiring less power to move loads.

Precision

  • Lead Screw: Lead screws are generally less precise than ball screws. They are suitable for applications where high precision is not critical.
  • Ball Screw: Ball screws offer high precision and repeatability, making them ideal for applications where accuracy is crucial, such as CNC machines and robotics.

Backlash

  • Lead Screw: Lead screws often have more backlash (play or slop) compared to ball screws. Backlash can impact the accuracy of linear motion.
  • Ball Screw: Ball screws typically have minimal backlash, ensuring precise and predictable movement.

Load Capacity

  • Lead Screw: Lead screws are suitable for lower-load applications where precision is not a primary concern.
  • Ball Screw: Ball screws can handle higher loads and are preferred for heavy-duty applications.

Cost

  • Lead Screw: Lead screws are generally more cost-effective than ball screws, making them a choice for budget-conscious projects.

In summary, the choice between lead screws and ball screws depends on the specific requirements of your application. Lead screws are simpler and cost-effective but are less precise and efficient. Ball screws offer higher precision and efficiency, making them suitable for applications demanding accuracy and high performance.

Shipping List

  • 1 x TR8 Lead Screw 2mm Pitch - 400mm
  • 1 x TR8 Lead Screw Nut


TR8 Lead Screw 2mm Pitch - 400mm

  • Brand: Generic
  • Product Code: TR8X8-P2-L400
  • Weight: 0.142kg
  • Product Status : Active
  • Stock

    Warehouse Stock Status Location
    Centurion In Stock UI132
    Stellenbosch In Stock 122
    Bulk Location No Stock

    We ship free of charge between branches to complete your order.

  • R104.00 (Inc Tax: R119.60)


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Tags: tr8, tr8x8, lead screw, cnc, 3d printing, 3d printer, 8mm, 2mm pitch, 400mm, linear motion