BT-SG Series Ball Screws for Plastic Machinery

BT-SG Series Ball Screws for Plastic Machinery

Our ball screw assemblies consist of a lead screw and a nut, each with matching helical grooves. Balls roll between these grooves, providing contact between the nut and the lead screw. These recirculating bearings enable the unit to operate efficiently with excellent static and dynamic load ratings.We stock ball screw models in various materials and designs, including high carbon and low carbon alloy steels and multiple grades of stainless steel in standard and metric sizes.Our ball screws provide linear motion solutions for various industries, including Building construction, heavy lifting, transportation, marine, medical, food packaging, and energy.

Accuracy Index of Ball Screw

Another is for transmission()The accuracy degree has 7 degrees; 1 is top, then the following Step down. Ball screws have two major parts: a screw shaft and ball bearings. A motor at one end provides rotational power to the screw. The nut, meanwhile, houses the ball bearing and recirculation system. The ball bearings match up with grooves on the screw shaft. A ball bearing is usually made of steel.As with all other types of screw repairs, ball screw repair services take into account the physical and design specifications of the screw. Some features include the type of unit, length, outer diameter, lead accuracy, lubrication port, thread type, right-hand or left-hand threads, twin leads, and more.Ball screws are used in many industries, including aerospace, robotics, and automotive manufacturing. They are also used in missiles and precision assembly equipment.

Features of Ball Screw Pairs

1. High transmission efficiencyIn a ball screw assembly, free rolling balls transmit force and motion between the screw and the nut. This transmission method replaces the direct action method between the screw and the standard threaded screw pair nut.Therefore, the sliding friction of the traditional lead screw is replaced by minimal rolling friction so that the transmission efficiency of the ball screw pair reaches more than 90%, and the driving torque of the entire transmission pair is reduced to about 1/3 of the sliding lead screw.Right, the heat generation rate is thus significantly reduced.2. High positioning accuracyThe ball screw pair has a low heating rate, a slight temperature rise, and measures such as pre-stretching and pre-tightening the lead screw to eliminate axial clearance during processing so that the lead screw pair has high positioning accuracy and repeat positioning accuracy.3. Transmission reversibilityThe ball screw pair has no stick-slip friction from the sliding screw, eliminating the possible creeping phenomenon during the transmission process. The ball screw pair can realize two transmission modes—converting rotary motion into linear motion or converting linear motion into rotation. Movement and transmission of power.4. Long service lifeDue to the strict control of the accuracy of the shape of the screw raceway, the surface hardness, and the selection of materials, the actual life of the ball screw pair is much higher than that of the sliding screw.5. Good synchronization performanceDue to the smooth operation of the ball screw pair, the elimination of axial play, and the consistency of manufacturing, when multiple sets of ball screw pairs are used to drive the same device or numerous identical components, good synchronization can be achieved.

Model.Series	Style of nut
G.GD	Inner cycle fixed reverser single/double nut style
CM.CDM	Tube single/double nut type
ZCT	Tube big size and extra-load type
KD	Inner cycle high speed type
Z.ZD	Inner cycle rolling single/double nut type
CBT	Tube lead preload type
JS-FC	Tube big lead type
GWS	Micro ball screw
GZXS	Planetary roller Screw
SG	Heavy load type for plastic machinery

Why Is Ball Screw Repair Necessary?

Ball screws must be lubricated regularly and at high levels to maximize efficiency and extend operating life. Inadequate lubrication can cause increased friction and reduced efficiency. If metal chips or dirt build up inside the ball thread raceway, the screw may ultimately fail. In such a case, a ball screw repair is necessary.Wear and tear on ball screws can lead to many performance problems. For example, a worn screw will increase backlash, reduce efficiency, and require more horsepower and torque. Worn ball screws can also lead to poor lead accuracy. Repairing ball screws can be a time-saving option. Nonetheless, be aware of the cost.When a ball screw is damaged, a specialist can offer a comprehensive range of repair services. They will inspect the ball screw assembly to identify if it's still reusable and perform a thorough visual inspection to determine whether it's still in good working order. Once the ball screw has been evaluated, the assembly is cleaned and re-loaded with new balls. While achieving "like-new" characteristics is impossible, the repair process will bring the ball screw back to life.

Company Profile

Raydafon is a professional manufacturer of mechanical parts. Our main products are helical worm gear reducers, sprockets, taper sleeves, gear and racks， coupling, and other transmission parts. Its products are mainly exported to Germany, Britain, France, and other European countries, with an annual export value of 18 million U.S. dollars, accounting for more than 65% of the total output. The annual output value reached 200 million yuan.Our products all adopt international, European, and American advanced industrial standards, use precise and good processing equipment, develop reasonable production technology, apply efficient and flexible management systems, and improve the quality management system to ensure that the product quality is good and the price is affordable.Our factory adheres to the enterprise concept of "quality: the basis of enterprise survival, integrity: the basis of enterprise development, service: the source of enterprise development, low price: the instrument of enterprise development." We are always looking forward to the presence of customers at home and abroad, seeking win-win benefits and joint cause development.