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12-50mm Diameter Ball Lead Screw With Plastic End Block Return

12-50mm Diameter Ball Lead Screw With Plastic End Block Return

50mm Ball Bearing Screw

12mm Ball Bearing Screw

High Speed ball bearing lead screw


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Product Details
Scew Ball Structure:
High Speed And Heavy Load
End Block Return:
Plastic,suitable For High Speed
Diameter Of Installation Hole:
Waist Groove Type:
Metal,suitable For Heavy Load
Shaft,screw Nut And Ball Bearing
Return Method:
End Block And Waist Groove Type
Payment & Shipping Terms
Product Description

Product Description:

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 frictional 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, and the two ends of the ball screw are connected through bearings and bearing seats, and then connected through bearing seats and equipment. The screw nut is connected to the nut seat through flanges, keys, or threads. After installing bearings on both ends of the screw rod, fix the bearings with circlips or locking nuts. When the ball screw is working, it will produce axial force and requires bearings that can withstand axial thrust.


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: Using the installation sleeve, the diameter of the sleeve is the same as the inner ring of the bearing, and the material can be aluminum or copper sleeve to press the inner ring in. If the tolerance is tight or the interference fit is tight, the bearing should be heated. Pay attention to observing the contact angle of the arrow or the rolling element inside the bearing at its complete position. Generally, it is combined back to back or face to face, and finally screw on the locking nut. Retroreflector plates or hole safety rings can be used to handle the situation of loose locking screws.

12-50mm Diameter Ball Lead Screw With Plastic End Block Return 0


Ball screw offers many advantages, in particular:

  • High efficiency with testing equipment and quality inspection process ensuring product efficiency of 90% or above.
  • Low temperature rise due to the superior surface quality of the screw ball track and the strict size of the ball.
  • High precision due to small temperature rise and measures such as pre tightening and clearance elimination.
  • High speed with the machine operating reliably at high speeds above 60M/min.
  • High rigidity with the screw rod and nut being processed with excellent materials and pre tightening and clearance elimination.
  • High reversibility due to the absence of viscous friction between the screw and nut.
  • Low maintenance with a special dust prevention device designed at the nut end.
  • Long service life due to the strict control of the material and surface hardness HRC62 of the screw and nut.

Technical Parameters:

Feature Parameter
Low Noise And Enduring Ball screw shaft with nut, Ball screw shaft with nut, Single nut ball screw shaft
Diameter 12--50mm
Working method Rotating While Axial Movement
Return method End Block And Waist Groove Type
Dynamic load capacity 126tons
Rigidity 1314N/um--4956N/um
Diameter of installation hole 11-17.5mm
Scew ball structure High Speed And Heavy Load
Waist groove type Metal,suitable For Heavy Load
Stucture Shaft,screw Nut And Ball Bearing


Ball screws can widely used for various industrial machinery, such as CNC machining center, CNC lathe, CNC bed, CIC wire cutting machine, CNC drilling machine, gantry milling machine, laser processing equipment, marking machine, CNC engraving machine, drawing machine IC packaging machine, CIC discharge machining machine, CWC grinding machine, glass machinery, textile machinery, woodworking machinery, printing and packaging machinery, petroleum machinery, metallurgical machinery, tobacco machinery etc.

Besides, it also can be applied to electronic machinery, such as robotic arm, testing machinery, measurement equipment, X-Y platform, medical equipment, factory automated equiptment. Meanwhile, ball screws can be used for transmission machinery, Metal heat treatment equipment, nuclear reaction equipment, actuators and support aerospace industry, such as aircraft flap actuator, seat actuator, airport installation equipment, radio antenna actuator, door and window control, medical bed control, parking lot equipment etc.



Our Linear Motion Guideways are designed to be compatible with heavy loads and are made of metal waist groove type. The structure includes a shaft, a screw nut and ball bearings. Our products come with diameters ranging from 12 to 50 mm and maximum length of 10 m. With a static load capacity of 595 tons, our Linear Motion Guideways are made of ball screw shaft with nut, ball screw, rolled ball screws and linear guideways.


Packing and Shipping:

Packaging and Shipping for Linear Motion Guideways

Linear Motion Guideways are packaged carefully and shipped to customers in the most efficient and secure way possible. Our staff takes the utmost care in ensuring that the product is properly packaged and shipped safely and securely to its destination.

We use a combination of thermally-insulated packaging materials and protective cushioning to keep the product at its best during transportation. We use bubble wrap, plastic wrap, and other forms of cushioning to protect the product from impact and other physical damage.

We also use special tracking and monitoring technologies to ensure that our customers receive their product in a timely manner. Our tracking system allows us to monitor the product’s progress from the point of packaging to its final destination.

We also partner with reliable shipping companies to ensure that our customers receive their products in a timely manner. We use the most reliable shipping methods to ensure that our customers receive their products safely and securely.

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