The linear technique is today the basis for the implementation of motion in many mechanical constructions in various branches of the industry.
Various elements can be used for its performance, such as linear guides, slide guides, as well as ball screws and linear motors.
WObit offers a rich offer of the previously mentioned products along with a variety of accessories
Among the listed components, the popularity of linear guides is very popular. This is mainly due to their relatively low price, high vitality and repeatability. WObit offers excellent guides from the Chieftek Precision Company (abbreviated as cpc) available in standard rail sizes from 15 to 55 mm and also miniature guides with a width of 2 mm. |  |
For standard cpc linear guides, a 4-row steel ball chain system is typical in the O-type system. This design and the contact of balls at a angle of 45ş in relation to the track mean that increasing the forces acting on the block influences the stiffness and the ability to transfer static moments. In addition, the larger size of the carts for the same size used larger balls and more of them, which increased the load capacity of the carts from 10% to 30% in comparison with the competition models. The products are characterized by a lot of load, high torque and high rigidity. Guides are available in five classes of accuracy, starting with a super precise, and up to normal, and can be made of stainless steel, while in the case of miniature versions it is obligatory.
Devices that are not inherently connected with the linear guides used to ensure the security of the system, in particular in multi-axis systems or vertical applications, are calipers and brakes. When selecting them, it is extremely important to pay attention to the quality of materials and workmanship, and also no less important technology. The WObit company offers a variety of models clamps and brakes German Zimmer Group, operating in technology manual , pneumatic , hydraulic and electrical . |  |
The clamps are adapted to all types and types of guides and prepared for each size of the linear guide and the guide rail. Using them in positioning linear axes allows you to achieve high accuracy, as well as to eliminate backlash, and the compact design makes it easy to install, even in small, hard-to-reach spaces.
The economical solution in the field of linear displacements are poles ground with appropriate supporting elements, as well as ball bearings. The cylinders in the WObit range have a diameter of 4 to 60 mm. They are made of surface-hardened carbon steel CF53 with a surface roughness Ra of 0.15-0.35 ľm and a straightness of about 0.1 mm / m. Linear linear bearings are available with closed and open casing as well as with flange, but supports can be divided into standing and main casing.
 | When it is important to carry large masses and high positioning precision, constructors often decide to use Ball screw . WObit company proposes GTEN screws, which are characterized by high quality at an extremely attractive price. Roller bolts are produced in classes of C5 and C7 accuracy in diameters from 6 to 80 mm and pitch from 1 to 50 mm. Thanks to their high accuracy and precision, rolled-up screws made in the 5th grade achieve better parameters than those of other manufacturers in the same class, and their cost is significantly lower. |
For each Bolts a wide range of caps is offered, selected depending on the required application. When choosing a cap, you should take into account installation space. External circlips are available, which are an economical solution offering milder ball patterns and internal circuits in which the outer diameter of the cap has been significantly reduced.
Significant beyond just the screw and the nut is to choose the appropriate fastening elements, such as the bearing blocks, to ensure precise and rigid guidance. Thanks to the bearings mounted in blocks it is possible to carry large radial and axial loads. bearing blocks to ensure precise and rigid guidance.
In addition to the ball screw, the increasingly popular drive element for linear movements is Linear motors . They guarantee precision and repeatability of ball screws, and at the same time much higher dynamics. For more than two years, the WObit offer has been available Chieftek Precision linear motors Ltd. .
 | The characteristic feature of these engines is the lack of an iron core, which makes them lighter. Lower weight allows faster acceleration and deceleration, and thus more dynamic work of drives. These motors consist of an electrically excited actuator and a stator with built-in permanent rare earth magnets. The stator is flat and due to its modular design it has almost any length. The movable element is an actuator composed of a Y-double winding imposed on itself. The winding is flooded with an epoxy resin, insensitive to the magnetic field, which prevents the motor from locking in the event of a power loss. The large air space between the actuator and the stator allows easy assembly and calibration. |
Along with the motor, you can use a magnetic head that moves over the magnetic band, which will allow you to work in the feedback loop for the rope motor. Motors are perfectly suited for applications in which dynamic work is necessary, that is: packaging applications or in automated warehouses, where they can be used to drive conveyors. Due to the quiet operation and also the lack of contamination, they are also suitable for applications requiring sterility, such as the food industry or various types of medical applications.
WObit also offers excellent ServoTube linear motors from Dunkermotoren. DLS engines have integrated Hall sensors that guarantee repeatability of traffic at level 12 ľm. Models from the ST25 series have a strength range of 51 to 102 N, while in peak 780 N. The motors are enclosed in a rectangular, compact housing, thanks to which they are very easy to assemble in both horizontal and vertical positions. |  |
As standard, DLS engines have IP67 protection, but for applications in the food industry whether the medical version is additionally equipped with a sealed version of stainless steel with IP69K protection. In addition, ServoTube motors are equipped with dry polymer bearings, and for cooling applied there is ordinary water. Thanks to this, the motors have no impact on the environment, their operation is quiet and maintenance-free.
Line Drives ServoTube can work as an actuator, then the moving element is a spindle stainless steel, which is made of neodymium magnets. The stem may also be attached on both sides, then the movable element is the motor (actuator). For ServoTube engines WObit recommends drivers from mcDSA series , which allow their precise positioning. For the models of the ST25 series, the appropriate controller is mcDSA-E47, while the smallest ST11 engine is designed for the mcDSAE67 driver.
