Hiwin Technologies Corporation

Chung Hsueh Lin

Yan Yu Chen

A ball nut includes a nut member having an inner thread formed in a bore for threading with a screw member, the nut member includes a recess and an opening communicating with the bore of the nut member for forming one or more anchoring surfaces. A guiding device includes a shank received in the recess of the nut member, and one or more return channels formed in the shank for aligning with the inner thread of the nut member, and an anchoring bar on one end of the shank and engaged in the opening of the nut member. The anchoring bar has one or more end portions for engaging with the anchoring surface of the nut member and for securing the guiding device to the nut member.

Guiding device for ball nut

A ball screw device includes a ball nut having an inner thread formed by a number of helical groove portions, a screw shaft having an outer thread formed by a number of helical groove portions, for threading with the inner thread of the ball nut, and a number of rolling members engaged in the helical groove portions of the ball nut and the screw shaft, for facilitating a movement of the ball nut relative to the screw shaft. One or more guide members are engaged in the helical groove portions of the screw shaft, and each has an oil retaining member for suitably absorbing oil and for continuously applying the oil onto the screw shaft. A tube may couple two of the helical groove portions of the ball nut together, to form an endless ball rolling passage and to receive the rolling members.

Growing community of inventors

Taichung, Taiwan

Chung Hsueh Lin