Sanwa Techno Co., Ltd.

Freebear Corporation

Kaito Oomae

Kazuro Fukui

Toshio Takino

Hiroyuki Furuuchi

Masashi Kouhara

Atsushi Sakane

Nagamasa Maruyama

A ball screw in which a nut and a male-threaded shaft provided with an arcuate continuous groove threadedly engage by way of a multiplicity of steel spheres inserted between the male threads and female threads, the end portion seal member is capable of being attached toward a front or toward a back from said nut, and has a support frame body arranged at an outside circumference of said male-threaded shaft; a base fabric portion, a back surface of which is secured to an inside circumferential surface of said support frame body; and the cut pile that protrudes in such fashion as to be directed toward said groove from a front surface of said base fabric portion; wherein fiber tip portions of said cut pile are bent and made to abut said groove so as to occlude a gap between said groove and said support body, and good lubricant is retained.

Wet end portion seal member for ball screw, and ball screw employing said seal member

To provide a ball transfer and a seal member for a ball transfer, a seal member is employed which is characterized in that it has a seal member employing pile fiber that, at a ball transfer having a main body which has a socket, an inner surface of which is a hemispherical concave surface, a plurality of ball bearings arranged at the main exterior socket, a primary ball, diameter of which is greater than that of said ball bearings and which is rotatably supported by the socket by way of the ball bearings, and a housing-like case which surrounds the main body socket and rotatably supports the ball bearings and the primary ball at a bearing portion thereof and which has a hole from which a portion of the primary ball is made to protrude at an upper surface of the primary ball socket.

Ball transfer and seal member for ball transfer employing pile seal member

Growing community of inventors

Kobe, Japan

Kaito Oomae