JPS6197625U

JPS6197625U -

Info

Publication number: JPS6197625U
Application number: JP17822285U
Authority: JP
Priority date: 1985-11-21
Filing date: 1985-11-21
Publication date: 1986-06-23

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示すもので、第１図は
本考案に係る四方向荷重形リニアベアリングの正
面図、第２図は同平面図、第３図は同右側面図、
第４図は第１図−線縦断面図、第５図は第４
図−線縦断面図、第６図は第５図−線横
断面図、第７図はベアリング本体を示す正面図、
第８図は側蓋を示す正面図、第９図は側蓋の内面
を示す背面図、第１０図は第９図−線縦断面
図、第１１図は保持器を示す側面図、第１２図は
第１１図−線横断正面図、第１３図は舌
片を示す縦断平面図、第１４図は四方向荷重形リ
ニアベアリングの他の実施例を示す正面図である
。符号の説明、１…ベアリング本体、２，１７…
中空凹所、３，４，１８ａ，１８ｂ…スカート部
、５，６，１９ａ，１９ｂ…凹溝、７，８，９，
１０，３１，３２，３３，３４…ボール転走面、
１１，１２，１３，１４…逃げボール用穴、１５
，１６…側壁、２０ａ′，２０ａ″，２０ｂ′，
２０ｂ″…ボール方向転換用Ｕ字溝、２１ａ，２
１ｂ…係止溝、２２，２３…保持器、２４，２５
…スリツト、２６，２７…舌片、２８…軌道台、
２９，３０…突条、３５…可動部材、Ｂ_１…負荷
ボール、Ｂ_２…無負荷ボール、，′…水平線
、Ｙ，Ｙ′…交差線、α，α′…交差角度、β…
接触角度、Ｏ…ベアリング本体中心、Ｏ_１…側蓋
中心。 The drawings show an embodiment of the present invention, and FIG. 1 is a front view of a four-way load type linear bearing according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a right side view of the same.
Figure 4 is a vertical sectional view taken along the line shown in Figure 1, and Figure 5 is a vertical cross-sectional view taken along the line shown in Figure 1.
Fig. 6 is a longitudinal sectional view taken along the line shown in Fig. 5, Fig. 7 is a front view showing the bearing main body,
8 is a front view showing the side cover, FIG. 9 is a back view showing the inner surface of the side cover, FIG. The drawings are a cross-sectional front view taken along the line of FIG. 11, FIG. 13 is a vertical cross-sectional plan view showing the tongue piece, and FIG. 14 is a front view showing another embodiment of the four-way load type linear bearing. Explanation of symbols, 1... Bearing body, 2, 17...
Hollow recess, 3, 4, 18a, 18b...skirt portion, 5, 6, 19a, 19b... groove, 7, 8, 9,
10, 31, 32, 33, 34...ball rolling surface,
11, 12, 13, 14...Escape ball hole, 15
, 16... side wall, 20a', 20a'', 20b',
20b''...U-shaped groove for changing ball direction, 21a, 2
1b...locking groove, 22, 23...retainer, 24, 25
... slit, 26, 27... tongue piece, 28... track base,
29, 30... Projection, 35... Movable member, B ₁ ... Loaded ball, B ₂ ... Unloaded ball, ,'... Horizontal line, Y, Y'... Intersecting line, α, α'... Intersecting angle, β...
Contact angle, O... Center of bearing body, O ₁ ... Center of side cover.

Claims

[Claims for Utility Model Registration] (1) A bearing body having a ball raceway extending in the axial direction and a relief ball hole, a track base having a ball raceway corresponding to the ball raceway, and the bearing. A side cover that is attached to the front and rear end surfaces of the bearing body and has a ball direction changing groove that connects the ball raceway surface of the bearing body and the relief ball hole, and a retainer that holds the balls on the ball raceway surface of the bearing body. In the linear bearing consisting of
The side cover and the retainer are divided into two in the width direction, and the side cover is provided with locking grooves for engaging both ends of the retainer, and the cross-sectional shape of the retainer is W-shaped. A four-way load type linear bearing. (2) The four-way load type linear bearing according to claim 1, wherein the skirt portion of the bearing body is shortened in the vertical direction and expanded in the width direction. (3) The four-way load type linear bearing as claimed in claim 1 of the utility model registration, characterized in that the contact angle between the ball rolling surfaces of the bearing body and the track base and the balls is approximately 45 degrees. (4) The four-way load type linear bearing according to claim 1, which is characterized in that a tongue piece is formed at the slit end of the retainer.