China high quality China Ballscrews Series C7 Rolled Ball Screw for CNC Machine (Sfu1204) near me factory

Product Description

Merchandise Description
Ball Screw is created of screw and ball nut. It is operate is to change the rotary movement into linear movement which is a potential extension and growth of ball screw. The importance of the development is to move into a rolling bearing from  sliding action. With minor frication, Ball Screw are broadly utilized into a variety of industrial equipment and precision instruments.

JLD Ball Screw Working Principle: 

On the screw and nut processing line with arc spiral groove, when they go well with together, they type the spiral groove, and the race was complete of ball bearing.

The ball is together the groove rolling, and the again bead tube as the cycle of round motion.

Again bead also Functions as blocking bead on both finishes of the tube, in situation the ball together the fell out of the race.

JLD Ball Screw Model No. List:


JLD Ball Screw Programs:

Digital equipment: measuring instruments, x-y platform, health care gear, factory automation gear, PCB drilling equipment, IC packaging equipment, semiconductor products, manufacturing facility automation equipment,And many others.

Precision device tool: milling device, grinding equipment, discharge device, cutter grinding equipment, equipment equipment, drilling device, planer

CNC equipment: CNC machining middle, CNC lathe, CNC milling machine, CNC electric powered discharge device, CNC grinding machine, CNC wire reducing machine, CNC drilling device, equipment...

Conveying machinery: material managing tools, nuclear reactor, large actuator...

Aerospace business: plane flap, airport load equipment... 

Other market purposes: this kind of as antenna utilizing the actuator, the valve swap gadget...

JLD Ball Screw Proportions:

About Us

HangZhou Town CZPT Bearing Co., Ltd. Is a professional manufacturer of linear movement merchandise because 2007. We specialised in generating linear guidesball screwslinear shaftslinear motion slide modelslinear bearingsrod finishes bearingscam follower bearings/Needle roller bearingprecision linear module with great good quality and competitive value. For OEM service, the products can be Customized according to customers' demands for regular or non-common bearings. 

Our Provider

Our Good quality: 
Top quality is the lifestyle . We use only the very best good quality substance to make certain the common of our product variety is of the optimum caliber.
All merchandise we bought out are strictly selected and examined by our QC office.
We provide one year guarantee for all merchandise. 
We accept payment via TT (Lender transfer), Paypal,Western Union, and Funds Gram.
We take bank transfer for massive orders. For modest purchase, you would greater shell out via Paypal,Western union or Money Gram
We supply as a lot of delivery alternatives as feasible, including DHL, UPS, TNT, FEDEX and EMS, Airfreight and by Sea.


one. Are you manufacturing unit or investing organization?
We are manufacturing facility with most aggressive price and substantial good quality. We are Alibaba Gold Provider vendor since 2011. 

2. Customized acknowledged?
Indeed, of system, such as the bearing brand of Japanese, United states, Sweden and so on are accessible. If that, remember to send us the drawing of the kind with the photograph will be most appreciated.  

three. Can I get some samples or a lot more discount rates?
Yes, just to make contact with us and we are honored to provide samples to you for examining. 

four. How about the time of shipping ?
For the products in stock, it will be despatched out in 1-3 times Or it will be sent out 3-thirty days in accordance to the quantity.  

5. What is actually your products major line?
Because 2007, we specialised in generating all kinds of linear shaft, linear bearing, flange bearing, ball screw, linear CZPT way, linear motion ball bearing, needle roller bearing, etc.

six. How can I get a quotation?
Generally, we will quote within 24 hours. If you are in urgent, please give a call or permit us know in your e-mail with the specifics.
We need information bellow:
1.The Model Amount/ the depth drawing of non-normal bearing
4.Floor treatment 
5.Any special packing or other needs. 

Our Major Products

Specifying a Ball Screw

When you need to have a high-high quality ball screw, it is crucial to select a single with the correct dimensions and technical specs. When you are seeking for the best solution, you need to contemplate features such as preloading, area complete, and inner return technique. You can find out far more about these characteristics in this write-up. If you might be unsure which variety of ball screw to decide on, make contact with a reputable provider for even more guidance. To uncover the best merchandise for your needs, click here!


When specifying a Brinelling ball screw, it is critical to know how considerably axial load it can securely bear. The static load capacity, which is provided in the catalogue, applies only to pure axial loading, and any radial load that is more compact than 5% of the axial load will not pose a issue. For much more data, contact a CZPT engineer. Brinelling ball screw support lifestyle calculation must be performed utilizing the adhering to knowledge:
Preload: The sum of load a ball screw can take care of for the duration of a solitary revolution. Preload is the load applied before the ball screw begins moving, and the load is generally amongst five and 10 % of the dynamic ability. Even so, a ball screw that is topic to vibration will knowledge higher preload, demanding much more frequent lubrication. The ensuing mechanical tension may possibly lead to the ball screw to buckle, or lead to the nut to re-flow into the balls.
Essential ball speed: The greatest pace at which the ball can shift by way of the ball nut is known as the critical ball speed. In distinction, managing the ball screw at its crucial shaft velocity can direct to abnormal vibrations, leading to untimely failure of the stop assistance bearings and brinelling of the ball keep track of. Hence, it is suggested to run a ball screw at a reduced speed than the crucial ball speed to stop brinelling and plastic deformation of the balls.
Untrue brinelling: Fake brinelling is a sort of Fretting. Fake brinelling happens when the bearings are not rotating. The movement will outcome in depressions or use marks in the bearing raceway. This will lead to noise, dress in, and eventual exhaustion. If these conditions persist, a more recent ball screw ought to be used to take a look at the technique. The machine should be operate for a number of hours and analyzed just before changing the bearing.


The method of preloading ball screws minimizes backlash by making use of stress to the threads in the reverse course of the screw's course of rotation. It stops any motion of the screw relative to the nut. Different methods are utilized for preloading. A typical one particular is to use outsized balls inside the ball nut. A double nut program may also be used. Each strategies are equally efficient. Regardless of the strategy used, the stop result is the very same - nominal backlash and enhanced efficiency.
In the standard technique of preloading ball screws, the motors run concurrently in opposite instructions, causing them to have a relative motion of about equal magnitudes. This decreases the frictional resistance of the technique, ensuing in rapid traverse. The technique is able to work with small backlash for the duration of 110 inches of vacation, minimizing the warmth developed by the push nuts and the troubles connected with ball screw heating. Furthermore, this technique can be utilized in a wide variety of programs.
Another approach of preloading ball screws is acknowledged as the ball-pick strategy. This approach consists of the use of in excess of-sized balls that power the balls into much more contacts with the screw and nut than a standard ball screw. The gain of this method is that it decreases backlash simply because the balls are not machined to large tolerances. The downside of this approach is that the ball screw will cost more to manufacture than a normal ball screw and nut.
A typical style contains a mechanical mechanism that uses a sequence of balls to rotate a shaft. The dilemma of backlash is exacerbated by the mass of the shaft. The mechanical system is more complicated than needed and often needs a good deal of energy. The existing invention gets rid of these troubles by offering an enhanced technique and equipment for driving ball screws. This strategy offers a far more efficient preload power that is dynamically adjustable whilst the system is operating. The method can also boost friction and dress in.

Inside return method

There are two distinct kinds of ball screws. The 1st type is external and the second is inside. The external kind utilizes return tubes that protrude from the ball nut and prolong over and around the outside of the screw. The inside sort utilizes a one tube that spans the ball track, whilst the much more typical design employs a number of tubes spanning 1.5 to 3.5 ball tracks. The interior program includes a single return tube and several pickup fingers that manual the balls into the tubes.
The external return tube style is an simpler, less costly option. The exterior ball return method has restricted place but can deal with a wide assortment of shaft diameters and leads. Nonetheless, its actual physical size can make it incompatible with numerous substantial-velocity programs. As a result, careful thing to consider must be offered to the mounting possibilities. Interior ball return systems are best suited for modest prospects and ball measurements. Those that require a substantial pace will most likely gain from the external ball return system.
Interior ball screw engineering has also retained speed with the needs of linear push systems. Ball screw technologies is now a lot more tough than ever. Strong inside ball return programs circulate ball bearings via a solid pickup pin. These deflectors assist the balls return to the screw in the proper location. They are vital components in laptop-controlled movement control methods and wire bonding. If you happen to be fascinated in the newest advances in linear screw technology, make contact with us right now.
Ball screws are superior to guide screws in several ways. Ball screws are far more productive than guide screws, converting 90% of rotational motion into linear motion. As a outcome, they are far more expensive than lead screws and acme screws. They also give a smoother motion in excess of the complete journey assortment. Additionally, they demand considerably less electricity for the same overall performance. It truly is no question that the ball screw is so well-known in a lot of different apps.

Area complete

The area finish of a ball screw is a single of the important factors in identifying the performance of the system. A ball screw with a great surface area complete has superior performance in rolling resistance, backlash, and use traits. Nonetheless, it is vital to enhance the floor finish of a ball screw to accomplish precision movement, reduced wear, and lower sounds. To attain this, unique wire brushes will be utilized to polish precision-ground shafts.
For a ball screw to perform well, it have to be hard, have a sleek surface, and retain lubricant. The surface finish of a ball screw need to be smooth, free of cracks, and keep the lubricant effectively. Cracks and annealing are the two unwanted throughout the production procedure, so a quality device must be utilized for its area end. In the course of the manufacturing procedure, a CBN chopping insert with entire round or gothic arch profile can be used to attain a high-high quality floor end.
One more ending operation employed in the manufacture of ball screws is lapping. Lapping improves area good quality and travel variation. It requires complex relative movements of abrasive particulates with the workpiece. This removes a slender layer of material from the workpiece, improving its area good quality and dimensional precision. The lapping procedure can be carried out under lower-force situations. It also boosts the friction torque and lubrication.
In lapping experiments, friction torque has the biggest affect on travel variation and surface roughness. A friction torque of about one particular N x m is optimum. In addition, rotational speed has only a small result. The ideal combination of these parameters is 1-1.5 N x m and thirty rpm. The least area end of a ball screw is all around 800 mesh. The smallest variation in travel is noticed at close to fifty percent-way by means of the journey.


Appropriate lubrication of ball screw assemblies is essential to preserve ideal functionality and life. Ball screw assemblies need to be lubricated with grease, which is launched straight into the ball nut. The lubrication port can be situated at different areas on the merchandise, including on the flange or in the external threads of the ball nut. Some ball nuts also characteristic a zerk fitting for easier lubrication.
The lubrication of ball screws is required in the situation of operating circumstances more than 100oC. The minimal load for a ball screw is usually understood with a preload force. The lubricant is conveyed through the slender lubrication gap owing to the relative movement of the two surfaces. The elevated viscosity of the lubricant allows separation of the speak to surfaces. To avoid above-lubrication, it is critical to check out the lubricant amount 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, such as lithium or bentonite. Other thickening brokers include lithium, barium complexes, or aluminum. The lubricant grade NLGI is a commonly used classification for lubricating greases. It is not sufficient to select a certain type of lubricant for a certain software, but it supplies a qualitative measure.
Regardless of becoming crucial to the efficiency of a ball screw, lubrication is also crucial to its lifespan. Various varieties of lubricant supply corrosion safety. Just before employing a lubricant, make positive to extensively cleanse and dry the ball screw. If there is any buildup of filth, it might harm the screw. To prevent this from transpiring, you can use a solvent or lint-totally free cloth. Lubrication of ball screw assemblies can significantly extend the daily life of the assembly.

China high quality China Ballscrews Series C7 Rolled Ball Screw for CNC Machine (Sfu1204)     near me factory China high quality China Ballscrews Series C7 Rolled Ball Screw for CNC Machine (Sfu1204)     near me factory

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