Technical Information

Types of Other THK Power Transmission Elements

Lead Screw Nut

Change Nut

The lead screw nut is a sliding feed screw that conforms to the standard for 30° trapezoidal threads. It is a high-precision, low-cost product die-cast from a special alloy for bearings with excellent wear resistance. The change nut is a sliding feed nut with a lead angle of 45°, which is difficult to achieve through machining. Because of the large lead, they are ideal for providing a fast-feed mechanism at low-speed rotation.
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