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公开(公告)号：WO1985005156A1
公开(公告)日：1985-11-21
申请号：PCT/JP1985000172
申请日：1985-04-05
IPC分类号： F16C29/06
CPC分类号： F16C29/0657 , F16C29/0661 , F16C29/088
摘要： A linear motion bearing used for guiding portions which perform a linear motion such as a machine tool table and a positioning table. A circulation path of balls (8, 28) is formed using a two-part split tube (3,3 min ) of opposed J shape, or by combination of a two-part split tube (23a) of opposed U shape having a belt-like connection (23c) with a two-part split tube (23b) of opposed J shape, thereby facilitating machining and assembly and attaining reduction of the number of parts.
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公开(公告)号：WO1986002417A1
公开(公告)日：1986-04-24
申请号：PCT/JP1985000173
申请日：1985-04-05
IPC分类号： F16C29/06
CPC分类号： F16C29/0623 , F16C29/0671
摘要： A ball bearing for linearly moving parts, which is used to guide a linearly moving part, such as a table in a machining tool or a positioning table. In this ball bearing, a ball-circulating passage is formed by fitting in a laminated state in a leg portion (3a) of a bearing body (3), in which load ball grooves (3b, 3b') are provided, an intermediate member (2) having upper and lower J-shaped grooves (2a), which are opposed to upper and lower members (1, 1') provided with opposed J-shaped grooves (1a), and upper and lower grooves (2a') connecting the ends of the upper and lower J-shaped grooves (2a), to thereby facilitate the manufacturing of the bearing and reduce the number of parts thereof.
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公开(公告)号：WO1984003336A1
公开(公告)日：1984-08-30
申请号：PCT/JP1983000453
申请日：1983-12-26
IPC分类号： F16C29/06
CPC分类号： F16C29/0695
摘要： A ball spline comprises: an outer race (10) provided around its cylindrical inner wall with grooves (11, 11', 12, 12'), each of a substantially semicircular cross-section; a retainer (20) provided at both end portions thereof with ball-turning grooves (24, 24') for effecting a changing of the direction of motion of balls between load-carrying grooves and non-load-carrying grooves; and a return cap (40) fitted over each of the end portions of the outer race (10) and which are provided with ball-turning grooves (41, 41'), wherein the ball-turning grooves (41, 41') and the ball-turning grooves (24, 24') of the retainer together form ball-recirculating paths.
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公开(公告)号：WO1984001194A1
公开(公告)日：1984-03-29
申请号：PCT/JP1983000313
申请日：1983-09-22
IPC分类号： F16C29/06
CPC分类号： F16C29/0645 , F16C29/0607 , F16C29/0642 , F16C29/088 , F16C33/6622
摘要： A linear operation ball bearing has a pair of recessed track surfaces (4, 4', 5, 5') of a radius of curvature slightly larger than the diameter of a ball formed axially in two side surfaces of a bearing (2) and a track base (3) facing each other, the track surfaces being perpendicular to the axis thereof and the distances (L2, L1) between the centers of curvature of the upper and lower track surfaces of the bearing (2) and the track base (3) are different.
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