CM.CDM Series Ball Screws

CM.CDM 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 nut of the traditional threaded screw pair.Therefore, the sliding friction of the traditional lead screw is replaced by a very small 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 greatly reduced.2. High positioning accuracyThe ball screw pair has a low heating rate, a small 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 of the sliding screw, which eliminates 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

Why Ball Screw Repair Is Necessary?

Ball screws need to be lubricated regularly and at high levels, in order to maximize their efficiency and extend their 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 completely fail. In such a case, a ball screw repair is necessary.Wear and tear on ball screws can lead to a wide range of 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 it's not possible to achieve "like-new" characteristics, 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.