BT-FC Series Ball Screws

BT-FC Series Ball Screws

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.

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 a 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 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 multiple 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

Ball Screws VS Lead Screws

A ball screw is a mechanical fastener that uses balls that rotate in a nut. It works the same as a lead screw, with some differences. Both are precision devices designed for specific applications. Both are available in a variety of sizes and have different features. Each has advantages and disadvantages, and it is essential to choose the right one for your needs.The lead of the screw depends on its size, material, and shape. This is an essential consideration for high-speed and precise positioning applications. Lead screws also vary in pitch diameter and the number of threads per unit length, determining how fast they rotate. Depending on the application, lead screws are more expensive and require larger lead diameters than ball screws.Another essential factor to consider when comparing ball screws and lead screws is the degree of mechanical efficiency. Ball screws are more efficient than lead screws due to their recirculating mechanism. A typical ball screw may be 90% efficient compared to the lead screw's 20% to 25% efficiency. Furthermore, the absence of sliding friction reduces the need for lubrication. These advantages can offset the added initial cost of using a ball screw.Another difference between a ball screw and a lead screw is their ability to carry different loads. While both lead screws are effective, ball screws are more efficient and can handle heavier loads. Ball screws are generally more rigid than lead screws, allowing higher speeds and load capacities. Plus, they're quieter and vibration-free.

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.