China manufacturer Zero Backlash Ball Screw with Good quality

Product Description


Product Description

SFY collection Domestic Chinese big guide ball screw shaft with nut details
Substantial precision low sounds ERSK ball screw

Ball screw is manufactured of screw, nut and ball. The operate is to change the rotary motion into liner motion, which is a additional extension and development of ball screw. The significance of this development is to shift into a rolling bearing from sliding motion With minor friction, ball screws are broadly utilised in numerous industrial products and precision devices.

Merchandise overview

Substantial Reliability

TBI Motion or ERSK ball screw has extremely stringent quality handle specifications covering every generation approach. With suitable lubrication and use,problems-free operation for an prolonged period of time is attainable.

Easy Operation

The large efficiency of ball screws is vastly excellent to typical screws. The torque needed is less than 30%. Linear movement can be effortlessly altered from rotary movement.

Substantial Rigidity and Preload

When axial perform is minimized in typical screw-nut assemblies, the actuating torque gets to be excessive and the procedure is not smooth. The axial engage in in TBI Movement or ERSK precision ball screws might be diminished to zero by preloading and a gentle smooth procedure is even now feasible. herefore, both minimal torque and large rigidity can be acquired at the same time.TBI Motion or ERSK ball screws have gothic CZPT groove profiles which permit these conditions to be achieved.

Circulation Strategy

Ball return tube method.(V,E,S,Y type)Ball defelector approach.(I,U,M,K type)

Higher Durability

Rigidly chosen resources, intensive heat managing and processing methods, backed by a long time of expertise,have resulted in the most resilient ball screws created.

Ball screw dimension are the exact same as ZheJiang TBI ball screw shafts and nuts, they can be interchanged into each other

Comprehensive Images

We are CZPT to machinize the finish sides of ball screw shafts according to your requirements

There are a lot of areas what can be matched into the ball screw, Please
decide on what you want:

ERSK Ball Screw and it truly is elements
((( ball screw shaft, ball screw Nut, Nut housing, Coupling, End assistance unit )))

There are several diverse series of ball screw shaft with nut, like SFU collection, SFS series, SFI sequence, SFY collection, DFU series, SFUL collection, SFK series.Each and every sequence has its possess characteristics, Let us appear at the big difference in physical appearance and traits.

Ball screw Characteristic
1. Cold rolled ball screw
two. Gcr15 material
3. Substantial-pace procedure
four. C5 C7 C10 precision
5. No gap and preloading
6. Quality as excellent as TBI brand name is high precision, long existence use.
7. Shell out much more attention to just before-sale, in-sale, following -income provider.
eight. Maker with massive inventory & brief delivery

Chilly Rolled Ball Screw Software:

1. Engraving equipment 2. Higher pace CNC equipment
4. Vehicle-machinery. 3. Semi-Conductor equipment
5. Equipment tools 6. Industrial Equipment
seven. Printing machine 8. Paper-processing equipment
nine. Textiles equipment 10. Electronic machinery
eleven. Transport machinery twelve. Robot etc.

Rolled ball screws can not only be utilized in earlier mentioned standard machinery, but also in a lot of superior industries. Rolled ball screw with a motor assembles electrical-mechanical actuator, which is a lot more eco-friendly than hydraulic pump method. Presently it's utilized to electric vehicles, photo voltaic electrical power vegetation, railway products and a lot of health care and CZPT equipments.

Installation Instructions

The way to assemble the ball screw nut in the ball screw shaft

Connected goods


Our services

Over Services and Our basic principle:

Quality first, credibility is the essential, the value followed

Our Positive aspects

Packaging & Shipping

Packaging and transport

PP bag for each linear shaft, Regular exported carton exterior for modest order shipping and delivery by global categorical,this kind of as DHL, TNT, UPS,Wooden box outdoors for big amount or very
extended linear shaft by sea, by air

Company Profile

Organization Data

HangZhou Wangong Precision Equipment Co., Ltd's ERSK brand is the top manufacturer of rolled ball screw and linear CZPT in China. We layout and create our possess rolling equipment, and we can generate all kinds of screws and nuts or linear CZPT on customer's requests.
We generate cold rolled ball screw in huge stock, Specification consist of: 1204, 1604, 1605, 1610, 2004, 2005, 2571, 2505, 2510, 3205, 3210, 4005, 4571, 4571, 5005, 5571, 6310, and many others. (Having all types of models) the max size 6000mm, we propose client acknowledge 3000mm, it really is easy packing, simple and safe for transportation.

Related Merchandise:
Ball screw end help
Nut bracket
All these relative merchandise have big inventory.

Usually Questioned Queries
one. What is your major items?
Chilly rolled ball screws, ball screw assistance units, Linear CZPT rails, Linear motion ball slide bearing, Cylinder rails, Linear shaft, Couplings, and so on.

two. How can I get a sample to verify your top quality?
Following value affirmation, sample buy is available to check our top quality.

three. When can I get the quotation?
We normally quote within 24 hrs after we get your inquiry. If you are very urgent to get the value, please get in touch with us or notify us in your e-mail so that we will regard your inquiry priority.

four. Can you do ball screw conclude equipment processing?
Of course. We have a professional group getting rich knowledge in finish device processing, make sure you supply us the drawing with the tolerance and we will help you to make the ball screws based on the drawing.

five. How lengthy is the lead time for mass manufacturing?
Actually, it relies upon on the order amount and the year you spot the order. The direct time of MOQ is about 7 to 15 times. Typically talking, we advise that you begin inquiry 2 months before the date you would like to get the items at your nation.

Get more in depth info! ! !

Inquiry with us, Now! ! !

We will reply within 24 Hours! ! !


Specifying a Ball Screw

When you need a high-top quality ball screw, it is crucial to pick a single with the suitable proportions and specs. When you are looking for the ideal item, you must contemplate attributes this sort of as preloading, floor complete, and interior return method. You can discover a lot more about these functions in this report. If you might be uncertain which sort of ball screw to decide on, speak to a respected supplier for further assistance. To discover the best product for your requirements, simply click right here!


When specifying a Brinelling ball screw, it is crucial to know how significantly axial load it can securely bear. The static load capability, which is offered in the catalogue, applies only to pure axial loading, and any radial load that is scaled-down than 5% of the axial load is not going to pose a problem. For far more data, speak to a CZPT engineer. Brinelling ball screw provider lifestyle calculation need to be carried out making use of the pursuing information:
Preload: The volume of load a ball screw can handle for the duration of a single revolution. Preload is the load utilized ahead of the ball screw begins moving, and the load is usually in between 5 and ten percent of the dynamic capability. Nevertheless, a ball screw that is matter to vibration will encounter larger preload, requiring more recurrent lubrication. The ensuing mechanical anxiety could lead to the ball screw to buckle, or lead to the nut to re-flow into the balls.
Crucial ball velocity: The greatest pace at which the ball can move through the ball nut is known as the vital ball speed. In distinction, running the ball screw at its crucial shaft velocity can guide to abnormal vibrations, leading to untimely failure of the stop assistance bearings and brinelling of the ball observe. Therefore, it is advised to operate a ball screw at a reduce velocity 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 occurs when the bearings are not rotating. The movement will result in depressions or put on marks in the bearing raceway. This will cause noise, use, and eventual fatigue. If these situations persist, a newer ball screw need to be utilised to take a look at the system. The device should be operate for many hours and examined ahead of changing the bearing.


The method of preloading ball screws minimizes backlash by making use of strain to the threads in the opposite course of the screw's direction of rotation. It prevents any movement of the screw relative to the nut. A variety of techniques are utilised for preloading. A common one particular is to use outsized balls inside of the ball nut. A double nut technique could also be utilised. Each approaches are equally effective. No matter of the approach utilised, the end consequence is the very same - nominal backlash and increased efficiency.
In the typical strategy of preloading ball screws, the motors operate concurrently in reverse instructions, leading to them to have a relative movement of roughly equivalent magnitudes. This decreases the frictional resistance of the technique, ensuing in fast traverse. The system is capable to work with nominal backlash during one hundred ten inches of vacation, decreasing the heat developed by the generate nuts and the problems associated with ball screw heating. Furthermore, this technique can be utilised in a extensive selection of apps.
One more approach of preloading ball screws is known as the ball-select approach. This method consists of the use of above-sized balls that power the balls into a lot more contacts with the screw and nut than a normal ball screw. The edge of this strategy is that it decreases backlash due to the fact the balls are not machined to high tolerances. The downside of this strategy is that the ball screw will cost much more to manufacture than a normal ball screw and nut.
A standard layout includes a mechanical system that uses a collection of balls to rotate a shaft. The problem of backlash is exacerbated by the mass of the shaft. The mechanical program is more sophisticated than required and usually demands a good deal of effort. The present creation eradicates these difficulties by providing an enhanced strategy and equipment for driving ball screws. This method supplies a far more productive preload drive that is dynamically adjustable although the system is working. The strategy can also improve friction and wear.

Internal return technique

There are two various varieties of ball screws. The very first type is external and the 2nd is inside. The external kind employs return tubes that protrude from the ball nut and prolong above and about the exterior of the screw. The inner sort employs a single tube that spans the ball track, whilst the a lot more typical layout uses a number of tubes spanning 1.5 to 3.5 ball tracks. The inner technique includes a one return tube and several pickup fingers that information the balls into the tubes.
The exterior return tube design and style is an less difficult, less costly selection. The external ball return program has restricted room but can deal with a wide range of shaft diameters and sales opportunities. Even so, its bodily dimension helps make it incompatible with numerous substantial-pace programs. Consequently, mindful thing to consider must be offered to the mounting options. Inner ball return techniques are ideal suited for small sales opportunities and ball sizes. Individuals that want a large speed will most likely advantage from the exterior ball return technique.
Inner ball screw engineering has also stored pace with the demands of linear push methods. Ball screw engineering is now more tough than ever. Strong inner ball return systems circulate ball bearings by way of a sound pickup pin. These deflectors support the balls return to the screw in the correct spot. They are essential parts in laptop-managed movement management techniques and wire bonding. If you are fascinated in the newest improvements in linear screw technological innovation, contact us right now.
Ball screws are exceptional to guide screws in many approaches. Ball screws are much more efficient than lead screws, changing ninety% of rotational motion into linear motion. As a outcome, they are a lot more expensive than lead screws and acme screws. They also offer a smoother motion above the complete journey range. Moreover, they require much less electrical power for the identical performance. It is no wonder that the ball screw is so well-liked in a lot of various programs.

Area finish

The floor end of a ball screw is a single of the crucial elements in identifying the efficiency of the system. A ball screw with a very good surface area finish has excellent overall performance in rolling resistance, backlash, and wear qualities. Nonetheless, it is essential to improve the surface area finish of a ball screw to obtain precision movement, low put on, and reduced sounds. To attain this, unique wire brushes will be utilized to polish precision-ground shafts.
For a ball screw to perform effectively, it must be hard, have a easy surface area, and retain lubricant. The floor complete of a ball screw must be sleek, totally free of cracks, and retain the lubricant well. Cracks and annealing are both undesirable during the manufacturing approach, so a quality equipment must be utilized for its floor complete. During the production procedure, a CBN slicing insert with total round or gothic arch profile can be utilised to attain a substantial-quality surface finish.
An additional ending procedure used in the manufacture of ball screws is lapping. Lapping enhances area good quality and travel variation. It entails complex relative actions of abrasive particulates with the workpiece. This gets rid of a skinny layer of substance from the workpiece, enhancing its floor quality and dimensional precision. The lapping approach can be carried out underneath lower-pressure circumstances. It also improves the friction torque and lubrication.
In lapping experiments, friction torque has the biggest influence on vacation variation and floor roughness. A friction torque of about a single N x m is the best possible. In addition, rotational velocity has only a minimal impact. The greatest mixture of these parameters is 1-1.5 N x m and thirty rpm. The minimal floor finish of a ball screw is close to 800 mesh. The smallest variation in travel is noticed at about fifty percent-way through the journey.


Appropriate lubrication of ball screw assemblies is vital to maintain optimum efficiency and daily life. Ball screw assemblies should be lubricated with grease, which is launched immediately into the ball nut. The lubrication port can be located at different places on the item, such as on the flange or in the exterior threads of the ball nut. Some ball nuts also function a zerk fitting for simpler lubrication.
The lubrication of ball screws is necessary in the situation of running circumstances in excess of 100oC. The least load for a ball screw is generally recognized with a preload drive. The lubricant is conveyed through the slim lubrication gap thanks to the relative motion of the two surfaces. The elevated viscosity of the lubricant allows separation of the speak to surfaces. To avoid over-lubrication, it is crucial to check the lubricant level frequently.
The oil utilised in lubrication of ball screw assemblies can be possibly mineral or synthetic. The oil is composed of mineral or synthetic oil, additives, and a thickening agent, these kinds of as lithium or bentonite. Other thickening agents include lithium, barium complexes, or aluminum. The lubricant quality NLGI is a commonly utilised classification for lubricating greases. It is not adequate to decide on a certain type of lubricant for a particular software, but it offers a qualitative measure.
Even with getting essential to the performance of a ball screw, lubrication is also vital to its lifespan. Different varieties of lubricant provide corrosion defense. Before using a lubricant, make sure to completely cleanse and dry the ball screw. If there is any buildup of dust, it might harm the screw. To prevent this from taking place, you can use a solvent or lint-free cloth. Lubrication of ball screw assemblies can tremendously lengthen the lifestyle of the assembly.

China manufacturer Zero Backlash Ball Screw     with Good qualityChina manufacturer Zero Backlash Ball Screw     with Good quality

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