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Title:
FEED SCREW AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/1999/035419
Kind Code:
A1
Abstract:
A feed screw wherein a ball screw member (2) or a slide screw member (2a) has a driving force transmission shaft (4 or 4a), and a bearing member (6 or 6a) fitted around the driving force transmission shaft (4 or 4a), the same transmission shaft (4 or 4a) being formed of aluminum or an aluminum alloy, the bearing member (6 or 6a) being formed of any one of a synthetic resin, aluminum and an aluminum alloy, the members formed of aluminum or an aluminum alloy being surface treated and preferably further surface finished.

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Inventors:
Nagai, Shigekazu (SMC Kabushiki Kaisha Tsukuba Gijutsu Center 2-2, Kinunodai 4-chome Yawara-mura, Tsukuba-gun Ibaraki-ken, 300-2439, JP)
Shiomi, Hiroyuki (SMC Kabushiki Kaisha Tsukuba Gijutsu Center 2-2, Kinunodai 4-chome Yawara-mura, Tsukuba-gun Ibaraki-ken, 300-2439, JP)
Application Number:
PCT/JP1998/005881
Publication Date:
July 15, 1999
Filing Date:
December 24, 1998
Export Citation:
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Assignee:
SMC KABUSHIKI KAISHA (16-4, Shimbashi 1-chome Minato-ku Tokyo, 105-8659, JP)
Nagai, Shigekazu (SMC Kabushiki Kaisha Tsukuba Gijutsu Center 2-2, Kinunodai 4-chome Yawara-mura, Tsukuba-gun Ibaraki-ken, 300-2439, JP)
Shiomi, Hiroyuki (SMC Kabushiki Kaisha Tsukuba Gijutsu Center 2-2, Kinunodai 4-chome Yawara-mura, Tsukuba-gun Ibaraki-ken, 300-2439, JP)
International Classes:
B23G7/00; B23G9/00; C25D11/04; F16C29/06; F16H25/24; F16H25/22; (IPC1-7): F16H25/24; B23G1/32; B23Q5/40; B24B1/00
Foreign References:
JPS63182351U
JPS48263A
JPH06305212A
JPH04203549A
JPH08285030A
JPH07110057A
Attorney, Agent or Firm:
Chiba, Yoshihiro (Shinjuku Maynds Tower 16th floor 1-1, Yoyogi 2-chome Shibuya-ku Tokyo, 151-0053, JP)
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