China Professional High Precision Domestic Ball Screw with Nut and Support with Good quality

Item Description

Item Description

SFS series Domestic Chinese massive direct ball screw shaft with nut specifics
Large precision reduced noise ERSK ball screw

Ball screw is created of screw, nut and ball. The purpose is to flip the rotary movement into liner movement, which is a more extension and development of ball screw. The importance of this improvement is to shift into a rolling bearing from sliding motion With tiny friction, ball screws are widely utilized in different industrial products and precision devices.

Items overview

Large Trustworthiness

TBI Motion or ERSK ball screw has quite stringent high quality control requirements masking each manufacturing procedure. With proper lubrication and use,problems-cost-free operation for an prolonged period of time of time is achievable.

Easy Procedure

The higher performance of ball screws is vastly superior to standard screws. The torque necessary is significantly less than thirty%. Linear movement can be effortlessly changed from rotary movement.

Substantial Rigidity and Preload

When axial play is minimized in traditional screw-nut assemblies, the actuating torque turns into extreme and the operation is not sleek. The axial perform in TBI Movement or ERSK precision ball screws may be lowered to zero by preloading and a light sleek procedure is still attainable. herefore, the two lower torque and large rigidity can be obtained at the same time.TBI Motion or ERSK ball screws have gothic CZPT groove profiles which enable these circumstances to be achieved.

Circulation Method

Ball return tube technique.(V,E,S,Y sort)Ball defelector technique.(I,U,M,K variety)

Substantial Toughness

Rigidly picked resources, intensive warmth managing and processing strategies, backed by several years of knowledge,have resulted in the most durable ball screws manufactured.

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

Comprehensive Pictures

We are CZPT to machinize the finish sides of ball screw shafts in accordance to your specifications

ball screw developed by ERSK business (cnc ball screw)

First TBI ball screw

Ball screw assembly is consisted of screw, nut and ball. The function is to flip the rotary motion into

liner motion, which is a additional extension and improvement of ball screw. The significance of this

improvement is to go into a rolling bearing from sliding action With small friction, ball screws are

extensively employed in a variety of industrial tools and precision devices. Especially in modern many years,

it is broadly utilized in CNC machine instruments. ball screw is manufactured by grinding and whirling, or rolled, and it

has 2 sorts of ball screw, accuracy from 1 to 7, 1 is the maximum and 7 is the cheapest.

There are several areas what can be matched into the ball screw, Remember to
pick what you need:

ERSK Ball Screw and it's components
((( ball screw shaft, ball screw Nut, Nut housing, Coupling, Conclude support unit )))


  1. Ground/Chilly rolled ball screw CF53 Germany materialHigh-speed and clean operationC5 C7 precision No gap and preloadingQuality as very good as TBI manufacturer is high precision, long daily life usePay a lot more focus to prior to-sale, in-sale, after -product sales services.Manufacturer with large inventory & brief supply

We are CZPT to end machining, if you need, You should let us know before buy, and make sure you give a

thorough conclude machined drawing, if not, we will not conclude machined the ball screw.

Any duration of the ball screw, we can fulfill to you.

ball screw Connected Goods: Ball screw finish assistance Nut, bracket, Coupling

There are many distinct sequence of ball screw shaft with nut, like SFU collection, SFS series, SFI collection, SFY series, DFU series, SFUL sequence, SFK series.Every single collection has its very own characteristics, Let's look at the big difference in appearance and qualities.

Ball screw Attribute
one. Cold rolled ball screw
2. Gcr15 substance
three. Large-velocity procedure
four. C5 C7 C10 precision
5. No hole and preloading
six. Top quality as excellent as TBI manufacturer is higher precision, long existence use.
seven. Spend more attention to ahead of-sale, in-sale, right after -sales provider.
8. Producer with large stock & limited shipping and delivery

Cold Rolled Ball Screw Software:

one. Engraving devices 2. Large pace CNC equipment
4. Car-equipment. 3. Semi-Conductor gear
five. Device instruments 6. Industrial Machinery
7. Printing machine 8. Paper-processing equipment
9. Textiles device ten. Electronic machinery
11. Transportation equipment twelve. Robotic etc.

Rolled ball screws can not only be employed in previously mentioned basic equipment, but also in many superior industries. Rolled ball screw with a motor assembles electrical-mechanical actuator, which is far more eco-friendly than hydraulic pump method. These days it truly is used to electrical cars, photo voltaic energy vegetation, railway products and numerous medical and CZPT equipments.

Installation Instructions

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

Relevant merchandise

Our support

Above Services and Our principle:

Top quality 1st, credibility is the key, the cost adopted

Our Rewards

Packaging & Shipping

Packaging and transport

PP bag for every single linear shaft, Standard exported carton exterior for modest get shipping and delivery by worldwide convey,this kind of as DHL, TNT, UPS,Wood box outside for big quantity or quite
prolonged linear shaft by sea, by air

Company Profile

Firm Details

HangZhou Wangong Precision Equipment Co., Ltd's ERSK brand is the foremost brand name of rolled ball screw and linear CZPT in China. We layout and make our possess rolling resources, and we can create all types of screws and nuts or linear CZPT on customer's requests.
We create chilly rolled ball screw in massive inventory, Specification include: 1204, 1604, 1605, 1610, 2004, 2005, 2571, 2505, 2510, 3205, 3210, 4005, 4571, 4571, 5005, 5571, 6310, etc. (Getting all sorts of versions) the max size 6000mm, we suggest buyer accept 3000mm, it is straightforward packing, simple and secure for transportation.

Associated Goods:
Ball screw finish assistance
Nut bracket
All these relative items have large inventory.

Often Asked Queries
1. What is actually your major merchandise?
Chilly rolled ball screws, ball screw help units, Linear CZPT rails, Linear movement ball slide bearing, Cylinder rails, Linear shaft, Couplings, and so forth.

2. How can I get a sample to check out your high quality?
Right after value affirmation, sample order is obtainable to examine our quality.

3. When can I get the quotation?
We generally estimate within 24 hours soon after we get your inquiry. If you are really urgent to get the cost, please phone us or explain to us in your e-mail so that we will regard your inquiry priority.

4. Can you do ball screw stop equipment processing?
Sure. We have a specialist team obtaining rich knowledge in finish machine processing, you should give us the drawing with the tolerance and we will help you to make the ball screws based on the drawing.

5. How prolonged is the direct time for mass creation?
Honestly, it depends on the get quantity and the season you location the buy. The direct time of MOQ is about 7 to fifteen times. Typically talking, we advise that you begin inquiry 2 months just before the date you would like to get the items at your nation.

Get far more comprehensive details! ! !

Inquiry with us, Now! ! !

We will reply inside of 24 Hours! ! !



Specifying a Ball Screw

When you want a high-top quality ball screw, it is important to decide on 1 with the suitable dimensions and specifications. When you are hunting for the ideal item, you must consider characteristics this sort of as preloading, area complete, and inner return method. You can understand far more about these characteristics in this report. If you happen to be not sure which kind of ball screw to select, make contact with a reliable provider for further assistance. To locate the greatest item for your requirements, simply click right here!


When specifying a Brinelling ball screw, it is crucial to know how much axial load it can safely and securely bear. The static load potential, which is given 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 likely pose a difficulty. For far more data, make contact with a CZPT engineer. Brinelling ball screw support existence calculation must be performed employing the pursuing data:
Preload: The amount of load a ball screw can deal with in the course of a one revolution. Preload is the load used before the ball screw starts moving, and the load is generally among 5 and ten p.c of the dynamic potential. Even so, a ball screw that is subject matter to vibration will expertise larger preload, necessitating much more regular lubrication. The resulting mechanical anxiety may trigger the ball screw to buckle, or trigger the nut to re-circulate the balls.
Crucial ball velocity: The highest velocity at which the ball can move by way of the ball nut is referred to as the critical ball speed. In distinction, operating the ball screw at its crucial shaft speed can lead to excessive vibrations, foremost to untimely failure of the conclude support bearings and brinelling of the ball monitor. As a result, it is recommended to work a ball screw at a reduced speed than the essential ball velocity to avert brinelling and plastic deformation of the balls.
Bogus brinelling: Untrue brinelling is a sort of Fretting. False brinelling takes place when the bearings are not rotating. The motion will consequence in depressions or dress in marks in the bearing raceway. This will cause sound, put on, and eventual fatigue. If these problems persist, a more recent ball screw need to be utilised to examination the method. The machine ought to be run for many hrs and examined before changing the bearing.


The process of preloading ball screws minimizes backlash by implementing stress to the threads in the reverse course of the screw's route of rotation. It prevents any motion of the screw relative to the nut. A variety of techniques are used for preloading. A common 1 is to use oversized balls within the ball nut. A double nut program may possibly also be employed. The two methods are equally efficient. Regardless of the method utilised, the stop result is the exact same - small backlash and enhanced efficiency.
In the traditional method of preloading ball screws, the motors work concurrently in opposite instructions, triggering them to have a relative motion of approximately equal magnitudes. This minimizes the frictional resistance of the program, resulting in fast traverse. The method is ready to run with small backlash during a hundred and ten inches of travel, minimizing the heat created by the travel nuts and the problems connected with ball screw heating. Additionally, this approach can be employed in a wide variety of purposes.
An additional approach of preloading ball screws is known as the ball-decide on method. This method includes the use of over-sized balls that pressure the balls into far more contacts with the screw and nut than a normal ball screw. The benefit of this technique is that it minimizes backlash because the balls are not machined to large tolerances. The drawback of this strategy is that the ball screw will price a lot more to manufacture than a normal ball screw and nut.
A conventional design involves 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 program is far more sophisticated than required and frequently requires a whole lot of effort. The current creation eliminates these difficulties by offering an enhanced strategy and equipment for driving ball screws. This technique offers a more efficient preload drive that is dynamically adjustable while the system is working. The approach can also boost friction and wear.

Inner return program

There are two distinct types of ball screws. The 1st sort is external and the second is interior. The external sort employs return tubes that protrude from the ball nut and increase earlier mentioned and about the outside the house of the screw. The interior kind uses a solitary tube that spans the ball keep track of, even though the a lot more common design uses several tubes spanning 1.5 to 3.5 ball tracks. The inside program includes a solitary return tube and many pickup fingers that guide the balls into the tubes.
The exterior return tube style is an easier, much less high-priced decision. The external ball return technique has limited place but can handle a vast assortment of shaft diameters and leads. Nevertheless, its bodily dimensions tends to make it incompatible with a lot of substantial-pace applications. For that reason, careful consideration should be presented to the mounting options. Inner ball return methods are greatest suited for small sales opportunities and ball measurements. Individuals that require a high pace will very likely advantage from the exterior ball return system.
Internal ball screw technologies has also stored pace with the demands of linear drive programs. Ball screw engineering is now much more tough than ever. Robust internal ball return systems circulate ball bearings by way of a sound pickup pin. These deflectors help the balls return to the screw in the correct spot. They are crucial factors in laptop-managed motion manage techniques and wire bonding. If you're interested in the most recent developments in linear screw technology, get in touch with us these days.
Ball screws are outstanding to lead screws in many techniques. Ball screws are far more successful than direct screws, changing ninety% of rotational motion into linear motion. As a end result, they are far more pricey than lead screws and acme screws. They also offer a smoother motion above the whole vacation assortment. Additionally, they need considerably less energy for the identical efficiency. It really is no surprise that the ball screw is so well-known in a lot of distinct apps.

Surface complete

The surface area complete of a ball screw is one of the key elements in deciding the efficiency of the technique. A ball screw with a very good floor complete has superior functionality in rolling resistance, backlash, and use traits. Nevertheless, it is essential to increase the surface complete of a ball screw to achieve precision motion, low wear, and lower sound. To accomplish this, specific wire brushes will be used to polish precision-floor shafts.
For a ball screw to carry out well, it must be challenging, have a sleek floor, and keep lubricant. The floor finish of a ball screw need to be clean, free of cracks, and keep the lubricant properly. Cracks and annealing are each undesirable during the production process, so a high quality device should be utilised for its floor end. Throughout the production approach, a CBN slicing insert with full spherical or gothic arch profile can be employed to attain a substantial-high quality surface area end.
Yet another finishing operation employed in the manufacture of ball screws is lapping. Lapping enhances floor high quality and journey variation. It requires complicated relative actions of abrasive particulates with the workpiece. This removes a thin layer of substance from the workpiece, bettering its surface area high quality and dimensional accuracy. The lapping process can be carried out beneath reduced-stress conditions. It also enhances the friction torque and lubrication.
In lapping experiments, friction torque has the largest impact on travel variation and floor roughness. A friction torque of about a single N x m is optimum. In addition, rotational speed has only a nominal impact. The very best mix of these parameters is 1-1.5 N x m and thirty rpm. The bare minimum surface area end of a ball screw is around 800 mesh. The smallest variation in travel is observed at close to 50 %-way through the vacation.


Appropriate lubrication of ball screw assemblies is critical to sustain the best possible efficiency and lifestyle. Ball screw assemblies must be lubricated with grease, which is released right into the ball nut. The lubrication port can be found at different areas on the solution, which includes on the flange or in the external threads of the ball nut. Some ball nuts also feature a zerk fitting for less difficult lubrication.
The lubrication of ball screws is required in the case of functioning problems above 100oC. The minimum load for a ball screw is typically realized with a preload pressure. The lubricant is conveyed by way of the slender lubrication hole due to the relative motion of the two surfaces. The elevated viscosity of the lubricant allows separation of the speak to surfaces. To stay away from above-lubrication, it is critical to verify the lubricant stage frequently.
The oil used in lubrication of ball screw assemblies can be both 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 incorporate lithium, barium complexes, or aluminum. The lubricant grade NLGI is a widely used classification for lubricating greases. It is not enough to choose a distinct kind of lubricant for a specific software, but it offers a qualitative measure.
In spite of getting important to the functionality of a ball screw, lubrication is also crucial to its lifespan. Different kinds of lubricant supply corrosion protection. Prior to utilizing a lubricant, make sure to totally clean and dry the ball screw. If there is any buildup of dust, it may possibly hurt the screw. To avoid this from taking place, you can use a solvent or lint-free fabric. Lubrication of ball screw assemblies can drastically lengthen the lifestyle of the assembly.

China Professional High Precision Domestic Ball Screw with Nut and Support     with Good qualityChina Professional High Precision Domestic Ball Screw with Nut and Support     with Good quality

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