Product Description
GG Series Stepped Precision Ball Screw (C3/C5)
Precision class and axial clearance
Precision grade of GG sequence stepped precision ball screw are based mostly on C3 and C5(JISB1192-3). In accordance to precision grade, Axial play (Preload :C3) and .005mm or much less(C5).
Substance & Surface Hardness
GG sequence stepped precision ball screw of screw shaft screw materials S55C (induction hardening), nut substance SCM415H (carburizing and hardening), the surface hardness of the ball screw element is HRC58 or greater.
Application:
1. Health-related market
two.Lithium battery market
three.Solar photovoltaic market
four. Semiconductor Business
5. Standard business machinery
six. Device device
seven. Parking system
8. High-pace rail and aviation transportation tools
9. 3C sector and many others
Shaft Stop Shape
The shaft finish condition of the GG collection stepped precision ball screw has been standardized.
Technical Drawing
Specification Checklist
Manufacturing facility Thorough PROCESSING Pictures
Higher Top quality Manage Technique
FAQ
one. Why choose CZPT China?
Above the earlier seventeen a long time, CZPT has often insisted that "products and services" start off from Japanese sector requirements,getting ZheJiang standards as the bottom line, actively make investments in the improvement of new transmission factors and self-experiment and examination. With the services tenet of "exceeding consumer anticipations", establish a "reliable" partnership.
two. What is your primary goods ?
We are a top company and distributor of linear movement factors in China. Specially miniature dimension of Ball Screws and Linear Actuators and linear motion guideways. Our brand "KGG" stands for " Know-how," " Fantastic Quality," and " Very good benefit" and our manufacturing unit is positioned in the most innovative town in China: ZheJiang with the best products and innovative engineering, completely strict top quality manage method. Our aim is to offer entire world leader class linear motion components but with most realistic value in the entire world.
three. How to Custom made-created (OEM/ODM)?
If you have a solution drawing or a sample, you should send to us, and we can custom made-created the as your needed. We will also offer our expert advices of the merchandise to make the style to be a lot more recognized & maximize the performance.
four. When can I get the quotation?
We normally quote inside of 24 hrs following we get your inquiry. If you are extremely urgent to get the price tag,you should get in touch with us or explain to us in your e-mail so that we will regard your inquiry priority.
5. How can I get a sample to examine the quality?
Soon after confirmation of our quoted value, you can area the sample buy. The sample will be began soon after you sign again our comprehensive technical file.
6. What is actually your payment terms?
Our payment conditions is 30% deposit,harmony 70% before cargo.
Specifying a Ball Screw
When you need a higher-top quality ball screw, it is essential to pick one particular with the correct dimensions and specifications. When you are searching for the best item, you must think about functions these kinds of as preloading, surface end, and inner return method. You can learn more about these functions in this post. If you're uncertain which type of ball screw to pick, make contact with a reputable supplier for even more direction. To find the ideal item for your wants, click here!
Brinelling
When specifying a Brinelling ball screw, it is essential to know how much axial load it can properly bear. The static load capability, which is given in the catalogue, applies only to pure axial loading, and any radial load that is smaller sized than 5% of the axial load won't pose a dilemma. For much more details, speak to a CZPT engineer. Brinelling ball screw service lifestyle calculation must be carried out employing the following data:
Preload: The sum of load a ball screw can take care of throughout a solitary revolution. Preload is the load applied ahead of the ball screw begins relocating, and the load is usually amongst 5 and ten p.c of the dynamic capacity. Nonetheless, a ball screw that is subject to vibration will expertise greater preload, necessitating a lot more recurrent lubrication. The ensuing mechanical tension may lead to the ball screw to buckle, or cause the nut to re-circulate the balls.
Crucial ball pace: The greatest velocity at which the ball can shift through the ball nut is called the crucial ball speed. In contrast, working the ball screw at its critical shaft pace can direct to excessive vibrations, foremost to premature failure of the stop assistance bearings and brinelling of the ball track. Thus, it is advisable to work a ball screw at a reduced velocity than the vital ball velocity to avert brinelling and plastic deformation of the balls.
Fake brinelling: Fake brinelling is a form of Fretting. False brinelling takes place when the bearings are not rotating. The motion will result in depressions or use marks in the bearing raceway. This will result in sounds, use, and eventual exhaustion. If these conditions persist, a newer ball screw must be employed to examination the technique. The equipment should be operate for several hrs and tested just before replacing the bearing.
Preloading
The method of preloading ball screws minimizes backlash by implementing stress to the threads in the reverse direction of the screw's direction of rotation. It prevents any movement of the screw relative to the nut. Numerous approaches are employed for preloading. A typical one particular is to use oversized balls inside the ball nut. A double nut technique might also be employed. Both approaches are similarly efficient. No matter of the technique utilised, the stop outcome is the very same - nominal backlash and elevated performance.
In the standard method of preloading ball screws, the motors work concurrently in reverse directions, creating them to have a relative motion of roughly equal magnitudes. This reduces the frictional resistance of the method, resulting in fast traverse. The technique is ready to run with minimal backlash throughout one hundred ten inches of journey, reducing the warmth created by the drive nuts and the issues connected with ball screw heating. Moreover, this technique can be used in a wide selection of programs.
An additional method of preloading ball screws is identified as the ball-select strategy. This method consists of the use of above-sized balls that power the balls into much more contacts with the screw and nut than a regular ball screw. The edge of this method is that it reduces backlash because the balls are not machined to high tolerances. The drawback of this method is that the ball screw will expense much more to manufacture than a common ball screw and nut.
A conventional design contains a mechanical system that uses a series of balls to rotate a shaft. The difficulty of backlash is exacerbated by the mass of the shaft. The mechanical technique is much more complicated than essential and typically calls for a great deal of energy. The present invention removes these troubles by supplying an improved strategy and equipment for driving ball screws. This approach provides a much more efficient preload power that is dynamically adjustable whilst the mechanism is functioning. The approach can also boost friction and put on.
Inner return program
There are two distinct varieties of ball screws. The 1st type is external and the next is internal. The exterior variety utilizes return tubes that protrude from the ball nut and extend earlier mentioned and around the exterior of the screw. The inside type utilizes a one tube that spans the ball track, whilst the a lot more frequent style makes use of several tubes spanning 1.5 to 3.5 ball tracks. The inner program involves a one return tube and numerous pickup fingers that guide the balls into the tubes.
The exterior return tube design is an simpler, considerably less expensive choice. The external ball return system has constrained space but can manage a broad selection of shaft diameters and prospects. Even so, its physical dimension can make it incompatible with a lot of higher-speed programs. For that reason, watchful thing to consider ought to be provided to the mounting alternatives. Internal ball return systems are ideal suited for tiny sales opportunities and ball sizes. People that need a substantial pace will most likely gain from the exterior ball return technique.
Inner ball screw engineering has also retained rate with the requires of linear drive systems. Ball screw technological innovation is now more resilient than ever. Sturdy interior ball return systems flow into ball bearings through a reliable pickup pin. These deflectors aid the balls return to the screw in the appropriate location. They are vital elements in pc-controlled motion management techniques and wire bonding. If you might be intrigued in the newest advancements in linear screw technology, contact us today.
Ball screws are excellent to lead screws in several methods. Ball screws are much more efficient than direct screws, converting 90% of rotational motion into linear motion. As a consequence, they are much more high-priced than direct screws and acme screws. They also provide a smoother motion above the entire vacation variety. Furthermore, they demand significantly less power for the exact same functionality. It's no ponder that the ball screw is so well-known in many various purposes.
Surface area finish
The surface finish of a ball screw is one of the key aspects in determining the performance of the program. A ball screw with a excellent floor complete has excellent functionality in rolling resistance, backlash, and use attributes. Even so, it is essential to improve the area complete of a ball screw to obtain precision movement, reduced dress in, and reduced sounds. To obtain this, unique wire brushes will be utilised to polish precision-ground shafts.
For a ball screw to complete nicely, it must be difficult, have a easy surface area, and retain lubricant. The surface end of a ball screw must be easy, free of charge of cracks, and keep the lubricant nicely. Cracks and annealing are each undesirable for the duration of the manufacturing method, so a good quality machine should be utilised for its surface complete. Throughout the manufacturing procedure, a CBN reducing insert with entire spherical or gothic arch profile can be utilised to accomplish a high-good quality area finish.
An additional ending operation utilised in the manufacture of ball screws is lapping. Lapping improves area quality and journey variation. It entails complex relative actions of abrasive particulates with the workpiece. This eliminates a slender layer of material from the workpiece, enhancing its area top quality and dimensional accuracy. The lapping method can be carried out underneath reduced-pressure circumstances. It also boosts the friction torque and lubrication.
In lapping experiments, friction torque has the largest influence on vacation variation and surface area roughness. A friction torque of about a single N x m is ideal. In addition, rotational pace has only a small effect. The very best mixture of these parameters is 1-1.5 N x m and 30 rpm. The minimal surface area end of a ball screw is all around 800 mesh. The smallest variation in journey is observed at close to 50 percent-way by way of the journey.
Lubrication
Suitable lubrication of ball screw assemblies is vital to maintain ideal efficiency and life. Ball screw assemblies ought to be lubricated with grease, which is released straight into the ball nut. The lubrication port can be situated at various places on the item, which includes on the flange or in the external threads of the ball nut. Some ball nuts also attribute a zerk fitting for less complicated lubrication.
The lubrication of ball screws is needed in the case of running problems above 100oC. The least load for a ball screw is typically understood with a preload pressure. The lubricant is conveyed by way of the narrow lubrication gap due to the relative motion of the two surfaces. The improved viscosity of the lubricant permits separation of the speak to surfaces. To steer clear of over-lubrication, it is essential to check the lubricant degree routinely.
The oil used in lubrication of ball screw assemblies can be both mineral or artificial. The oil is composed of mineral or artificial oil, additives, and a thickening agent, such as lithium or bentonite. Other thickening agents contain lithium, barium complexes, or aluminum. The lubricant quality NLGI is a commonly employed classification for lubricating greases. It is not adequate to decide on a specific sort of lubricant for a distinct application, but it offers a qualitative evaluate.
Even with being crucial to the functionality of a ball screw, lubrication is also important to its lifespan. Various types of lubricant supply corrosion protection. Ahead of using a lubricant, make positive to completely cleanse and dry the ball screw. If there is any buildup of filth, it could injury the screw. To prevent this from occurring, you can use a solvent or lint-free of charge cloth. Lubrication of ball screw assemblies can greatly lengthen the existence of the assembly.
