Merchandise Description
GG Sequence Stepped Precision Ball Screw (C3/C5)
Accuracy class and axial clearance
Precision grade of GG series stepped precision ball screw are based mostly on C3 and C5(JISB1192-3). According to accuracy quality, Axial perform (Preload :C3) and .005mm or less(C5).
Material & Area Hardness
GG collection stepped precision ball screw of screw shaft screw substance S55C (induction hardening), nut material SCM415H (carburizing and hardening), the area hardness of the ball screw element is HRC58 or higher.
Software:
1. Health-related business
two.Lithium battery industry
three.Photo voltaic photovoltaic sector
4. Semiconductor Industry
5. General industry machinery
six. Machine resource
seven. Parking program
eight. High-pace rail and aviation transportation equipment
nine. 3C sector etc
Shaft Conclude Shape
The shaft stop condition of the GG collection stepped precision ball screw has been standardized.
Technological Drawing
Specification Record
Manufacturing unit Thorough PROCESSING Pictures
Higher Top quality Control Method
FAQ
1. Why choose CZPT China?
Over the past seventeen several years, CZPT has usually insisted that "items and services" start from Japanese market requirements,getting ZheJiang standards as the bottom line, actively spend in the growth of new transmission components and self-experiment and take a look at. With the service tenet of "exceeding customer expectations", establish a "trusted" partnership.
two. What is your major items ?
We are a top producer and distributor of linear motion elements in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our manufacturer "KGG" stands for " Know-how," " Wonderful High quality," and " Great worth" and our factory is found in the most advanced city in China: ZheJiang with the greatest products and sophisticated engineering, completely rigorous top quality handle method. Our intention is to source world chief class linear movement parts but with most affordable price in the entire world.
three. How to Custom made-manufactured (OEM/ODM)?
If you have a merchandise drawing or a sample, remember to ship to us, and we can custom made-created the as your needed. We will also provide our expert advices of the products to make the layout to be far more understood & maximize the performance.
4. When can I get the quotation?
We generally quotation inside 24 hours following we get your inquiry. If you are really urgent to get the price tag,make sure you phone us or explain to us in your e-mail so that we will regard your inquiry priority.
five. How can I get a sample to check out the high quality?
Following affirmation of our quoted cost, you can area the sample get. The sample will be began after you sign back our detailed technical file.
six. What is your payment conditions?
Our payment terms is thirty% deposit,balance 70% before shipment.
Specifying a Ball Screw
When you require a substantial-good quality ball screw, it is critical to select one particular with the proper proportions and requirements. When you are searching for the best product, you must think about features this sort of as preloading, surface end, and interior return method. You can learn far more about these functions in this post. If you are uncertain which type of ball screw to choose, make contact with a respected supplier for even more direction. To discover the greatest solution for your requirements, click on below!
Brinelling
When specifying a Brinelling ball screw, it is essential to know how considerably axial load it can securely bear. The static load capacity, which is presented in the catalogue, applies only to pure axial loading, and any radial load that is scaled-down than 5% of the axial load will not pose a problem. For much more details, make contact with a CZPT engineer. Brinelling ball screw provider lifestyle calculation should be performed making use of the subsequent data:
Preload: The amount of load a ball screw can deal with for the duration of a solitary revolution. Preload is the load used ahead of the ball screw starts shifting, and the load is generally in between 5 and ten % of the dynamic potential. Nonetheless, a ball screw that is topic to vibration will encounter higher preload, demanding more repeated lubrication. The ensuing mechanical anxiety may possibly result in the ball screw to buckle, or cause the nut to re-circulate the balls.
Essential ball velocity: The optimum velocity at which the ball can transfer by means of the ball nut is called the critical ball speed. In distinction, managing the ball screw at its crucial shaft speed can guide to extreme vibrations, foremost to untimely failure of the finish assistance bearings and brinelling of the ball keep track of. As a result, it is advisable to work a ball screw at a decrease pace than the essential ball velocity to stop brinelling and plastic deformation of the balls.
Untrue brinelling: False brinelling is a form of Fretting. Fake brinelling occurs when the bearings are not rotating. The motion will consequence in depressions or put on marks in the bearing raceway. This will trigger sound, dress in, and eventual tiredness. If these circumstances persist, a more recent ball screw need to be employed to check the program. The device must be run for a number of hours and analyzed before changing the bearing.
Preloading
The procedure of preloading ball screws minimizes backlash by implementing pressure to the threads in the reverse route of the screw's path of rotation. It helps prevent any movement of the screw relative to the nut. Various approaches are employed for preloading. A frequent one particular is to use oversized balls inside of the ball nut. A double nut method could also be used. Each methods are equally successful. No matter of the approach utilized, the stop result is the exact same - minimum backlash and enhanced performance.
In the standard strategy of preloading ball screws, the motors work simultaneously in opposite directions, triggering them to have a relative movement of approximately equal magnitudes. This decreases the frictional resistance of the technique, resulting in quick traverse. The system is capable to function with minimum backlash throughout a hundred and ten inches of journey, reducing the warmth designed by the generate nuts and the problems related with ball screw heating. In addition, this method can be utilised in a wide assortment of programs.
Yet another strategy of preloading ball screws is acknowledged as the ball-decide on technique. This approach consists of the use of in excess of-sized balls that power the balls into more contacts with the screw and nut than a normal ball screw. The edge of this method is that it minimizes backlash simply because the balls are not machined to substantial tolerances. The disadvantage of this approach is that the ball screw will price a lot more to manufacture than a common ball screw and nut.
A standard style includes a mechanical mechanism that uses a series of balls to rotate a shaft. The problem of backlash is exacerbated by the mass of the shaft. The mechanical method is more sophisticated than necessary and usually demands a great deal of work. The existing invention removes these problems by providing an enhanced strategy and equipment for driving ball screws. This approach offers a far more effective preload drive that is dynamically adjustable although the mechanism is running. The technique can also improve friction and dress in.
Inside return method
There are two different varieties of ball screws. The 1st kind is exterior and the next is inner. The external variety utilizes return tubes that protrude from the ball nut and increase earlier mentioned and around the outside the house of the screw. The inside type utilizes a single tube that spans the ball keep track of, although the a lot more typical design and style uses several tubes spanning 1.5 to 3.5 ball tracks. The inside method entails a solitary return tube and a number of pickup fingers that guidebook the balls into the tubes.
The exterior return tube layout is an less difficult, less expensive decision. The external ball return method has limited place but can deal with a broad assortment of shaft diameters and leads. However, its physical measurement helps make it incompatible with several higher-pace purposes. As a result, careful thing to consider need to be presented to the mounting options. Inside ball return programs are greatest suited for tiny qualified prospects and ball measurements. Individuals that need to have a large velocity will likely gain from the external ball return method.
Interior ball screw technologies has also retained tempo with the requires of linear generate systems. Ball screw technology is now a lot more tough than at any time. Strong inner ball return systems circulate ball bearings through a strong pickup pin. These deflectors help the balls return to the screw in the proper area. They are essential factors in personal computer-managed motion manage techniques and wire bonding. If you're fascinated in the most current advances in linear screw technological innovation, speak to us nowadays.
Ball screws are outstanding to direct screws in numerous approaches. Ball screws are much more successful than guide screws, converting ninety% of rotational movement into linear movement. As a consequence, they are much more high-priced than direct screws and acme screws. They also offer a smoother movement more than the complete travel assortment. Moreover, they need significantly less electrical power for the exact same overall performance. It truly is no ponder that the ball screw is so well-liked in numerous distinct applications.
Surface area finish
The surface area finish of a ball screw is 1 of the essential aspects in figuring out the functionality of the system. A ball screw with a great area end has excellent overall performance in rolling resistance, backlash, and dress in qualities. However, it is vital to increase the surface area finish of a ball screw to achieve precision motion, lower use, and minimal sound. To accomplish this, unique wire brushes will be utilised to polish precision-floor shafts.
For a ball screw to perform well, it should be hard, have a clean floor, and keep lubricant. The surface area finish of a ball screw should be sleek, cost-free of cracks, and retain the lubricant effectively. Cracks and annealing are equally unwanted for the duration of the manufacturing method, so a good quality machine ought to be utilized for its surface area finish. Throughout the creation process, a CBN slicing insert with full spherical or gothic arch profile can be used to attain a large-good quality surface area finish.
Yet another finishing procedure employed in the manufacture of ball screws is lapping. Lapping enhances area quality and vacation variation. It includes intricate relative actions of abrasive particulates with the workpiece. This eliminates a skinny layer of material from the workpiece, enhancing its surface area high quality and dimensional precision. The lapping procedure can be carried out beneath reduced-pressure conditions. It also enhances the friction torque and lubrication.
In lapping experiments, friction torque has the greatest impact on travel variation and area roughness. A friction torque of about a single N x m is ideal. In addition, rotational speed has only a nominal influence. The ideal blend of these parameters is 1-1.5 N x m and thirty rpm. The least surface complete of a ball screw is about 800 mesh. The smallest variation in journey is observed at all around 50 percent-way by way of the journey.
Lubrication
Correct lubrication of ball screw assemblies is crucial to preserve optimum functionality and daily life. Ball screw assemblies must be lubricated with grease, which is launched right into the ball nut. The lubrication port can be located at various places on the item, including on the flange or in the external threads of the ball nut. Some ball nuts also feature a zerk fitting for less complicated lubrication.
The lubrication of ball screws is needed in the case of working conditions over 100oC. The minimal load for a ball screw is normally recognized with a preload pressure. The lubricant is conveyed via the narrow lubrication gap owing to the relative motion of the two surfaces. The enhanced viscosity of the lubricant allows separation of the make contact with surfaces. To keep away from in excess of-lubrication, it is essential to check out the lubricant level routinely.
The oil utilized in lubrication of ball screw assemblies can be either mineral or artificial. The oil is composed of mineral or artificial oil, additives, and a thickening agent, this kind of as lithium or bentonite. Other thickening brokers include lithium, barium complexes, or aluminum. The lubricant grade NLGI is a extensively used classification for lubricating greases. It is not ample to choose a specific type of lubricant for a specific application, but it gives a qualitative evaluate.
In spite of being essential to the functionality of a ball screw, lubrication is also crucial to its lifespan. Various varieties of lubricant offer you corrosion safety. Just before utilizing a lubricant, make positive to thoroughly cleanse and dry the ball screw. If there is any buildup of dirt, it might harm the screw. To prevent this from transpiring, you can use a solvent or lint-free of charge fabric. Lubrication of ball screw assemblies can drastically extend the life of the assembly.
