Ball screw is a commonly used transmission component in both tool and precision machinery. Its main function is to convert rotational motion into linear motion or torque into axial repeated force, while also possessing the characteristics of high precision, reversibility, and efficiency. Due to its small friction resistance, ball screws are widely used in various industrial equipment and precision instruments.
Bearings are an important component in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotational accuracy. The ball screw is usually equipped with a special support bearing for the screw, with a contact angle of 60°. This bearing has a large bearing capacity, low speed, and high accuracy. Generally, bearings need to be paired during installation. The specific pairing method should be determined based on the use of the machine tool.
In order to improve the working accuracy of the feed system, the ball screw mechanism must have a high transmission stiffness. In addition to increasing the stiffness of the ball screw itself, the ball screw mechanism must be designed with a sufficiently rigid support structure and must be installed correctly. The factors that affect the rigidity of the support structure include the stiffness of the bearing seat, the contact area between the bearing seat and the machine structure, and the stiffness of the bearing.
Universal ball screw, using angular contact ball bearings is sufficient. Install the bearings "face to face" on the two supporting shaft ends of the ball screw. If it is a specialized screw rod for special equipment, and if the equipment installation manual requires the use of specialized bearings, then assemble according to the relevant instructions.
In the load bearing capacity of the ball screw, both radial and axial loads exist simultaneously, and consideration should be given to the selection of bearings. Commonly used bearings that can withstand the load simultaneously include angular contact bearings and tapered roller bearings. The former focuses on dry light load and high-speed fields, while the latter focuses on heavy load and low-speed situations. It should be noted that the above two types of bearings are generally used in pairs and installed relative to each other (face to face or back to back), which can limit the axial movement of the screw rod.
Installation instructions for ball screw bearings:
Ball screw features high efficiency, with testing equipment and quality inspection process ensuring product efficiency of over 90%. Its low temperature rise is attributed to the superior surface quality of the screw ball track and the strict size of the ball ensuring the lowest friction between the ball and the track.
Pre tightening and clearance elimination leads to the screw drive pair achieving high positioning accuracy. Excellent design and meticulous manufacturing enables this machine to operate reliably at high speeds above 60M/min. Furthermore, the rigidity is improved in the screw rod and nut through the processing with excellent materials and pre-tightening and clearance elimination.
Due to the absence of viscous friction between the screw and nut, the creeping phenomenon in the transmission is eliminated. In addition, a special dust prevention device is designed at the nut end and general maintenance is required during operation. Lastly, a long service life is assured thanks to the strict control of the material and surface hardness HRC62 of the screw (high carbon steel) and nut (alloy steel).
|Diameter of installation hole||11-17.5mm|
|Static load capacity||595tons|
|Feature||Low Noise And Enduring|
|Working method||Rotating While Axial Movement|
|Stucture||Shaft,screw Nut And Ball Bearing|
|Return method||End Block And Waist Groove Type|
|Dynamic load capacity||126tons|
|End block return||Plastic,suitable For High Speed|
|Rolled ball screw||Yes|
|Ball bearing screw||Yes|
|Rolled ball screw nut||Yes|
Ball screw usages have a wide range of applications in the industrial machinery field, such as CNC machining centers, CNC lathes, CNC beds, CNC wire cutting machines, CNC drilling machines, gantry milling machines, laser processing equipment, marking machines, CNC engraving machines, drawing machines, IC packaging machines, CNC discharge machining machines, CWC grinding machines, glass machinery, textile machinery, woodworking machinery, printing and packaging machinery, petroleum machinery, metallurgical machinery, and tobacco machinery.
Moreover, ball screws can also be used in electronic machinery, such as robotic arms, testing machinery, measuring equipment, X-Y platforms, medical equipment, and other factory automation equipment. Transmission machinery such as metal heat treatment equipment, nuclear reaction equipment, and actuators also benefit from the usage of ball screws. In the aerospace industry, ball screws are commonly used in aircraft flap actuators, seat actuators, airport installation equipment, and radio antenna actuators.
Lastly, ball screws are also widely used in door-window control, medical bed control, and parking lot equipment. In conclusion, the usage of ball screws applies to numerous machines and equipment from different industries.
Linear Motion Guideways is designed with ball screw shaft with nut, and Single nut ball screw, and Linear motion screw to support heavy load. It has a static load capacity of 595tons, and rigidity of 1314N/um to 4956N/um. The diameter of installation hole is 11-17.5mm, and the length can be up to 10m.
Linear Motion Guideways are packaged in protective cardboard boxes with bubble wrap or foam padding for additional protection. All packages are clearly labeled with the product name and quantity. All packages must be handled with care. Prior to shipping, all packages are inspected to ensure that the product is in good condition and ready for transport.
Linear Motion Guideways are shipped via standard ground or air freight. Customers are responsible for arranging their own transportation. All packages must be inspected upon receipt and any damages must be reported to the carrier immediately.
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