| 摘要 |
943,931. Rectilinear-motion bearings GEORG FISCHER A.G. March 3, 1961 [March 5, 1960; Jan. 4, 1961], No. 7916/61. Heading F2A. A machine slideway constitutes a rectilinearmotion bearing which comprises machine members 1 and 2 which are connected for longitudinal movement by a guide rail 3 which is secured to member 1 by a screw or bolt 4. Around the guide rail 3 is located a partly circular bush 5 which is housed within the bore 10 of member 2. The bore of the bush 5 is slightly larger than the circumference of the guide rail and bearing contact is obtained by three surfaces 6, 7 and 8 which extend longitudinally to the bush bore and radially inwards towards the centre 12 of the guide rail. The bush is secured in bore 10 of member 2 by one or more screws 15 which have a cylindrical extension 17 which locates in a suitably provided hole 18 in the bush 5. Other embodiments of this device includes the use of a non-circular section guide bar and a split first member and bush. |
