Rail de guidage linéaire AGORA Technique

Telescopic ball screws It is a complex assembly of several ball screws screwed in one. Each nut has the additional function of a bearing for the fixation of the next shaft from the assembly of ball screws. The unique construction with mutual bonds of the individual components secures simultaneous turning and actuation of all ball screws at once. In such a way multiplication of the stroke per one revolution of the drive is achieved. The telescopic ball screw replaces hydraulic cylinders, with the advantage of easy control and positioning. The telescopic ball screw takes advantage of the basic properties of the ball screws, in which the highly efficient rolling of balls in the thread profiles of the screw and the nut is used for the transition of the rotary motion into linear. Telescopic ball screws are appreciated for their compact length in comparison with the achieved total actuation. This property can be used at places where it is necessary to solve actuation without the possibility to apply through and long lifting mechanisms, such as for example in the case of various handling platforms. The telescopic ball screw can be used in machine tools with unconventional kinematic structure (hexapods). Telescopic ball screws : www.ks-kurim.cz/en/additional-assortment/telescopic-ball-screws/

Guide rods Guide rods are structural components suitable for accurate and highly efficient linear guidance of the moving parts of various mechanisms. They are produced from hardened, ground and straightened circular cross section shafts and can be mounted in clamping bars, sockets and other clamping elements. The guide rods are supplied with a relevant rolling guide according to the required operation load and type of the guide rod. Guide rods that have been properly designed, calculated and applied do not require any special supervision or maintenance. However, they should be protected against dust, water and aggressive environments. In combination with ball screws and suitable drives they constitute basic construction motion units used in various machines and equipment. Guide rods are usually produced from steel grades CF53 or 42CrMo4 and afterwards are induction heat treated to 58 – 60HRC. Assembly Before the start of operation the conservation oil layer should be removed and the guide rods should be cleaned properly. The guide rods are usually implemented with linear bushings. They should be accurately aligned in parallel with the direction of motion of the linear bearings with precision 0.02 mm/1,000 mm. In the event of any warranty repair the guide rods should be sent to the producer as a complete rolling guide assembly. Lubrication For the lubrication of the guide rods, suitable lubricants include those used for ball bearings as well as relevant plastic lubricants which are applied once on basis of the recommendation of manufacturers of rolling guides. Guide rods : www.ks-kurim.cz/en/additional-assortment/guide-rods/

Standard positioning ball screws This type of ball screws is most widely spread in practice thanks to their universal use, excellent technical parameters and wide product range. They have been produced mainly by the technologies of grinding, whirling or a combination of both. For this type of ball screws the following nut types are available: Single and double nuts With backlash or preloaded With internal or external ball recirculation system With or without flange Characteristics: Precise positioning ball screws Wide range of sizes and pitches Standard geometric and working accuracy, service life and load capacities according to DIN ISO 3408 Delivered with customized preload Technical parameters: Diameters from 12 to 125 mm Pitch from 3 to 50 mm, lengths up to 6,2 m Accuracy classes from IT1 to IT5 Do × n = 100,000 efficiency 94–97 % (according to the thread pitch and lubricant) Shaft material minimum strength Rm = 650 MPa, functional surfaces of the shaft and nut hardened to 58-60HRC Application temperatures -40 to +80 °C (according to lubricant type) Applications: Machine tools Positioning mechanisms Automotive and aerospace industries Example of designation: K80×20 – 4+4/AP+A ST/3 (ball screw with diameter 80 mm, 20 mm right hand pitch, 4 working threads, double preloaded nut type AP+A, with flange type 3) Standard positioning ball screws : www.ks-kurim.cz/en/ball-screws/standard-positioning-ball-screws/