Register and download cad service life calculation lm guide, ball screw and electrical actuator. A682 features and types ball screw features of the ball screw driving torque one third of the sliding screw with the ball screw, balls roll between the screw shaft and the nut to achieve high efficiency. The type sbkh features the high load carrying capacity of thks type hbn caged ball screw and the highspeed capability of the type sbk ball screw. The ball screw nut is incorporated with a compact labyrinth seal or a brush seal. The simplenut ball screw has a more compact structure and allows smoother motion than the conventional doublenut type spacer inserted between two nuts. Well precision linear guide,taiwan hiwin linear guide.
Ball screw drive is a popular linear actuator introduction the ball screw drive is an assembly that converts rotary motion to linear motion and vice versa. But certain design parameters of the ball screw must be adapted to such usage. Increasing a ball screw diameter will increase the critical speed and buckling load. Obtain required lead accuracy of a ball screw under these conditions. Correct installation of nsk ball screw is important for long life, low friction and high accuracy. Purchase thk products online, linear motion guides, actuators, ball screws, cross roller rings, linear bushings, and even custom parts. Precision ball screws din standard compliant ball screw thk. Nsk ball screws were developed through cuttingedge tribology friction control technology, and nsk manufactures the largest volume in the world with its outstanding production and quality control techniques. The interface between the ball screw and the nut is made by ball bearings which roll in matching ball forms. Compared with a conventional sliding screw, this product has drive torque of onethird or less, making it most suitable for saving drive motor power.
Ball screws feed screw products thk america official. You can order only 1 piece with no delivery charge. The ball screw drive is an assembly that converts rotary motion to linear motion or vice versa. Compared with a conventional sliding screw, this product has a drive torque of onethird or less, making it most suitable for saving drive motor power. Thk finishes the ball raceways of rolled ball screw nuts by grinding, just as the precision ball screws, to secure the durability and the smooth motion. A wide variety of thk precision ball screws options are available to you, there are 1,856 suppliers who sells thk precision ball screws on, mainly located in asia.
Specifications of products, calculate life span, download cad data. Thk linear guide bearing, hgh30cahgw35cc linear block. Linear guideways huntley, illinois hiwin corporation. With the worlds leading ball screw, nsk has been contributing to industrial growth. Ball screw selection 1 selecting overall length of the screw shaft. Ball screw examples of selecting a ball screw highspeed transfer equipment horizontal use table mass m 1 60kg work mass m 2 20kg stroke length s mm maximum speed v max 1ms acceleration time t 1 0. Ball screws the ball screw is a highefficiency feed screw with the ball making a rolling motion between the screw axis and the nut. Thk steel precision ball screw assembly model bnk0601. Due to a recent update to the thk technical support site, we need you to register some additional information to your optimal product selection tool account. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users.
The balls between the screw axis and the nut are creating rolling motion. It consists of a ball screw and a ball nut packaged as an assembly with recirculating ball bearings. All programs meet the requirements for the label swiss made software. Feed screw ball screw ball screw standardlead rolled ball screw rectangularnut nonpreloaded type bnt 3d cad models. A modern interface with extended help and safety functions simplifies operation and quickly leads to optimum results. Ball screws work in a similar fashion to ball bearings, where hardened steel balls move. Thk ball screw import data of india and price seair exim solutions provides the latest, 100% genuine and trusted indian import data of thk ball screw. Ball screw life can be calculated with basic dynamic load ratings using the following formula. It is possible to design a ball screw for operation outside this range we do it all the time. The simplenut ball screw is an offset preload type in which a phase is provided in the middle of a single ball screw nut, and an axial clearance is set at a belowzero value under a preload. Ball screw automation components from thk for industrial applications. The grabcad library offers millions of free cad designs, cad files, and 3d models. Thk ball screw import data india with hs code, thk ball. When considering the total torque required for a given ball screw assembly, you must consider several factors.
The top countries of suppliers are china, india, and japan, from which the percentage of thk precision ball screws supply is. For 5 years,will is professionally produce ball screw and linear guide,focused on bearing manufacturing,just to provide the best products. On this page the demo versions and the software documentation are available. Linear guideways provides linear motion by recirculating rolling elements between a profiled rail and a bearing block. This means the allowable applied load is between about 10 and 30% of ca again, this is for most industrial ball screws. Easy select and service life calculator for ball screw are available.
Thk has a great calculator for determining safety factors in lifetimes for a variety of relatively straightforward layouts, says wally logan, vp of. Thk is a technology focused company, says ed johnson, vp of sales at thk america. The coefficient of friction on a linear guideway is only 150 compared to a traditional slide and they are able to take loads in all directions. You can find your most suitable thk products by dimensions. It covers the complete range of roller and ball rail systems as well as ball and planetary screw assemblies.
The nut travels on a ball bearing circuit for smooth, lowfriction travel, and it has a flanged. Thk ek10 thks linear motion system helps to provide a guide device that enables this precision and speed to be realized. Miniature linear bearings all the way to size 65 are provided in a variety of bearing blocks. Join the grabcad community today to gain access and download. If you are building a system based on a single axis with two rails and four blocks, for example, the online calculator will probably be effective. Select one of the items below and click the update button. Ball screws thk linear bearings, thk bearings,thk guide. These tools consist of howto videos, various calculators, charts and application data froms that you can fill out and submit to our. A ball screw consists of a threaded shaft and a nut, and either one can act as the traversing component. Thks tech calculator can quickly provide you insights into the service life of various thk solutions including the linear motion guide, ball screw, and linear. General industrial machine manufacturing industry c.
To meet the spacesaving requirement, this type of ball screw has a standardized screw shaft and a ball screw nut. Below is a listing of the engineering tools available on our website to assist you with your particular application. Technical calculation selection method ball screws. Support the screw properly for its length and application. Product selection tool by dimensions thk innovations for robotics. The ball screw is a highefficiency feed screw with the ball making a rolling motion between the screw axis and the nut. Ball screws life is defined as a total number of rotations it can sustain without showing any deterioration caused by repeated stress on the ball or rolling surfaces. If an axial load acting on the ball screw is present, it is necessary to calculate. Heavy grease is a good general use lubricant for ball screws, unless the environment is particularly dusty in which case use a dry film lubricant. This thk ball screw assembly is a 40 mm stroke feed screw and ball nut for transmitting rotary motion into linear motion. The ends of the screw shaft are standardized to fit the corresponding support unit. Thrust force the sum of all external forces such as machining load, gravity, friction, inertial forces, etc. Standard combinations of shaft diameter and lead for the rolled ball screw.
Me en 7960 precision machine design ball screw calculations 43 based on load a ball screw transforms rotational motion into translational motion. It will help you in many ways such as you can generate competitive analysis reports on importer, port, supplier and exporter of thk ball screw. If youre designing a fiveaxis machining center, calling a sales engineer is the best approach. The ball screw is a highefficiency feed screw with the ball making a rolling motion. Online bearing calculator simplifies linear guide selection. Thk ek10 in order to repeat the production of this advanced product, the lm guide and ball screw in the milling machine guide system which dont waste of action 3. Misumi has 2600 brands, 9 millions products of automation components, fastners and materials. It has a grounded steel screw for strength and hardness, with rolled thread for stronger, smoother surface than cut thread. Thk develops and manufactures mechanical components including the linear motion system, lm guides, ball splines, ball screws, and electric actuators for. Additionally, based on the list axial clearances of ball screws on p. You can use the selection tools for ball screws, nsk linear guides, and megatorque motors. This achieves a low friction, a high dustprevention effect and a. Ball screw selection and calculations university of utah. As an established thk sales and distribution organization, technico, inc.
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