Profile: THK Co., Ltd. is a provider of mechanical and electronic equipment in a wide variety of systems used in all industries. We develop many unique mechanical products including spline, ball screws, and link balls. Our product range includes screw nut, cross roller ring, spherical plain bearing products, cross roller guide, cross roller table, and linear ball slides. Our ball screw is a high efficiency method of converting rotary motion to linear motion by using a re-circulating ball mechanism between the screw shaft and the nut. Our screw nut is a sliding nut adopting the standards for a trapezoidal screw thread. Our die casting uses special bearing alloy for superb abrasion resistance.