China OEM 15 Years Professional Manufacturer CNC Ball Screw (SFk model) near me factory

Merchandise Description



Product Description

SFK collection Domestic Chinese miniature ball screw shaft with nut specifics
Substantial precision reduced sound ERSK ball screw

Ball screw is made of screw, nut and ball. The purpose is to switch the rotary movement into liner movement, which is a further extension and advancement of ball screw. The significance of this improvement is to transfer into a rolling bearing from sliding action With tiny friction, ball screws are broadly employed in numerous industrial equipment and precision devices.

Items overview

Large Dependability

TBI Motion or ERSK ball screw has really stringent good quality manage standards masking each and every manufacturing method. With proper lubrication and use,difficulties-cost-free operation for an extended time period of time is attainable.

Smooth Operation

The higher performance of ball screws is vastly superior to traditional screws. The torque essential is considerably less than thirty%. Linear motion can be effortlessly transformed from rotary motion.

High Rigidity and Preload

When axial enjoy is minimized in conventional screw-nut assemblies, the actuating torque becomes excessive and the operation is not sleek. The axial play in TBI Motion or ERSK precision ball screws could be reduced to zero by preloading and a light-weight clean procedure is even now possible. herefore, equally low torque and higher rigidity can be acquired simultaneously.TBI Movement or ERSK ball screws have gothic CZPT groove profiles which let these situations to be accomplished.

Circulation Technique

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

Higher Longevity

Rigidly selected components, intensive heat managing and processing methods, backed by a long time of expertise,have resulted in the most sturdy ball screws made.

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

Detailed Photos

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

ball screw created by ERSK business (cnc ball screw)

First TBI ball screw

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

liner motion, which is a more extension and growth of ball screw. The importance of this

growth is to go into a rolling bearing from sliding motion With little friction, ball screws are

widely used in different industrial products and precision instruments. Particularly in current years,

it is extensively utilized in CNC equipment tools. ball screw is manufactured by grinding and whirling, or rolled, and it

has 2 types of ball screw, precision from 1 to 7, 1 is the maximum and 7 is the most affordable.

There are many areas what can be matched into the ball screw, Make sure you
pick what you need:

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


  1. Ground/Chilly rolled ball screw CF53 Germany materialHigh-speed and sleek operationC5 C7 precision No gap and preloadingQuality as very good as TBI manufacturer is higher precision, extended daily life usePay a lot more interest to ahead of-sale, in-sale, soon after -sales service.Producer with big stock & brief delivery

We are CZPT to finish machining, if you need, Make sure you allow us know ahead of buy, and remember to offer a

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

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

ball screw Associated Items: Ball screw finish help Nut, bracket, Coupling

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

Ball screw Feature
one. Cold rolled ball screw
two. Gcr15 substance
3. Large-speed operation
four. C5 C7 C10 precision
five. No hole and preloading
six. High quality as great as TBI manufacturer is higher precision, prolonged life use.
7. Pay out a lot more consideration to just before-sale, in-sale, after -product sales service.
8. Maker with massive inventory & brief shipping

Chilly Rolled Ball Screw Application:

1. Engraving machines 2. Substantial velocity CNC equipment
four. Automobile-machinery. 3. Semi-Conductor tools
5. Equipment equipment 6. Industrial Equipment
7. Printing equipment 8. Paper-processing device
9. Textiles machine ten. Digital equipment
eleven. Transport equipment twelve. Robot and many others.

Rolled ball screws can not only be employed in previously mentioned common equipment, but also in numerous superior industries. Rolled ball screw with a motor assembles electrical-mechanical actuator, which is far more eco-helpful than hydraulic pump technique. Nowadays it is applied to electric vehicles, photo voltaic power plants, railway gadgets and many healthcare and CZPT equipments.

Installation Directions

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

Connected merchandise



Our service

In excess of Support and Our basic principle:

Good quality very first, reliability is the crucial, the value followed

Our Benefits

Packaging & Shipping and delivery

Packaging and transport

PP bag for each linear shaft, Normal exported carton outside the house for small order delivery by international convey,this kind of as DHL, TNT, UPS,Wooden box exterior for large quantity or quite
long linear shaft by sea, by air

Company Profile

Business Details

HangZhou Wangong Precision Machinery Co., Ltd's ERSK brand name is the leading brand name of rolled ball screw and linear CZPT in China. We layout and create our very own rolling instruments, and we can make all types of screws and nuts or linear CZPT upon customer's requests.
We produce chilly rolled ball screw in huge stock, Specification include: 1204, 1604, 1605, 1610, 2004, 2005, 2571, 2505, 2510, 3205, 3210, 4005, 4571, 4571, 5005, 5571, 6310, and so on. (Having all sorts of designs) the max length 6000mm, we recommend customer acknowledge 3000mm, it really is simple packing, simple and risk-free for transportation.

Associated Merchandise:
Ball screw end assist
Nut bracket
All these relative merchandise have large stock.

Regularly Requested Questions
1. What is actually your primary items?
Cold rolled ball screws, ball screw assist units, Linear CZPT rails, Linear motion ball slide bearing, Cylinder rails, Linear shaft, Couplings, etc.

2. How can I get a sample to check your high quality?
Right after price tag affirmation, sample get is accessible to verify our high quality.

3. When can I get the quotation?
We generally quote inside 24 hrs after we get your inquiry. If you are quite urgent to get the price, please get in touch with us or tell us in your email so that we will regard your inquiry priority.

4. Can you do ball screw finish device processing?
Sure. We have a skilled group obtaining prosperous experience in finish machine processing, make sure you supply us the drawing with the tolerance and we will help you to make the ball screws relying on the drawing.

five. How lengthy is the lead time for mass production?
Honestly, it relies upon on the get amount and the time you location the buy. The guide time of MOQ is about 7 to fifteen times. Typically speaking, we advise that you start off inquiry 2 months just before the date you would like to get the merchandise at your region.

Get a lot more thorough details! ! !

Inquiry with us, Now! ! !

We will reply within 24 Hours! ! !





Ball Screws - Dimensions, Programs, and Positive aspects

Ball screws are popular, light-weight, precision mechanical elements. They are commonly employed in equipment, gears, and knurled objects. These screw-like parts can be very easily maintained and lubricated employing oil. This write-up discusses their dimensions, apps, and advantages. The following sections supply extra data to aid you decide on the correct ball screw for your demands. We are going to discuss some of the critical qualities of ball screws and what tends to make them so beneficial.


A essential difficulty with nut-to-ball screw backlash is the capacity of the nut to go freely on the threads of the ball screw. To solve this problem, a patented remedy was designed. The patent, 4,557,156, describes an innovative technique for preloading ball screws and nuts. By implementing a preloading nut, the threads of the ball screw are prevented from moving back again and forth with the nut.
A mechanical design and style that requires axial play entails a good deal of mass, inertia, and complexity. These attributes direct to use and rust troubles. Preloading ball screws employing a dynamic program reduces mechanical complexity by making it possible for preload to be modified although the mechanism is running. This also minimizes the amount of mechanical parts and simplifies producing. Hence, the preloading strategy of the present creation is advantageous.
The servo motors used in the method monitor the output torque and modify the energy to 1 motor in a dynamic way, as a result producing a torque differential between the balls. This torque differential in change results in a preload drive in between the ball nuts. The servo motors' output torque is controlled in this manner, and the machine's backlash clearance can be exactly controlled. Therefore, the device can execute a number of jobs with improved precision.
Many prior art strategies for preloading ball screws are explained in detail in FIG. 3. The helical thread grooves of the ball screw 26 and the nut 24 define a pathway for roller balls to journey alongside. The stylized broken line indicates the common position of the axis of the ball roller screw 26. The corresponding ball screws are utilized in a variety of purposes. This technique may be utilised to manufacture custom made-sized screws.


Ball screws are mechanical elements that roll balls through a groove. Poor lubrication can lessen the lifestyle of these screw factors. Improper lubrication can lead to shaft damage, malfunction, and reduced overall performance. This write-up discusses the relevance of correct lubrication and how to do it. You can find out how to correctly lubricate ball screws in the adhering to paragraphs. Here are some guidelines to guarantee long-time period efficiency and security of ball screws.
The initial thing you must do is decide the variety of lubricant you may be using. Oils are chosen simply because they are inclined to remain within the ball nut, and grease can construct up in it. Oils also have a tendency to have better anti-corrosion homes than grease. Nevertheless, grease is a lot more probably to be clogged with debris than oils. So, ahead of you pick the lubricant that is right for your screw, make certain you wash it off.
The oil used in ball screw lubrication must be utilized at a managed rate. It can avert steel-on-metallic contact and clear out contaminants as it passes via the ball nut. Nevertheless, oil as a lubricant is high-priced and can contaminate the process if it mixes with the cutting fluid. Grease, on the other hand, is economical, calls for much less apps, and does not contaminate method fluids.
If you use a artificial oil for lubrication, make sure to pick a viscosity that is acceptable for the functioning temperature. Oil viscosity can improve the temperature of the ball screw assembly, and abnormal oil can decrease its lifestyle. A right quantity of oil will lessen the temperature of the ball screw assembly, whilst also small will improve friction and wear. Use the pursuing tips to establish the right volume of oil for your screw.


Proportions of ball screws are a very critical facet to contemplate when deciding the ideal variety for your application. Complex acceptance situations for ball screws specify the authorized deviations for the duration of acceptance exams. The tolerance course can also change, relying on the wants of a distinct software. The following desk lists the most crucial tolerance values for the entire variety of screw lengths. This table is a useful guide when looking for a certain screw. The table below lists the dimensions of frequent ball screws.
The axial load applied to a ball screw is .5 x Fpr / 2Fpr. The bare minimum screw diameter is identified as the root diameter. The axial load triggers the screw shaft to deform in a specific way (DL1 and DL2). The elastic deflection induced by the load on a ball screw is known as its rigidity. This rigidity is important for calculating sizing parameters for a ball screw.
The preload price of the ball screw influences the dynamic load capacity. A preload of 10 p.c is regarded as satisfactory, whilst a value better than this may compromise the screw's toughness. In standard, a substantial preload value will end result in a decrease dynamic load ability and better use. Nevertheless, the preload value need to be calculated with the relevant screw parameters. This is due to the fact a higher preload value reduces the screw's longevity.
To make certain that your screw fulfills the specified parameters, the dynamic load capability should be calculated. This is the amount of power a ball screw will face up to underneath a specified load. This calculation also consists of energy checks. If you are making use of a ball screw for purposes that require further power, it could require a basic safety aspect. For illustration, if the screw is used for double-axial mounting, then the outer ball nut should be inserted into the nut, creating a secondary load.


The existing creation offers a simple, however highly efficient way to mount a ball screw. Its absence of insert slots or by means of holes can make it easier to assemble and gives a much more uniform nut. The lack of mechanical attributes also reduces warmth therapy troubles, and the nut's hardness can be uniformly hardened. As a outcome, the screw's overall performance is improved. Below are some examples of programs for ball screws.
Preloading is the approach of applying force to a ball screw. This will increase the rigidity of the screw assembly and removes backlash, which is lost motion triggered by clearance among the nut and ball. Backlash disrupts repeatability and precision. Spacer preloading involves inserting drive in between two ball nuts and transmitting it by means of the grooves. This strategy is perfect when preloading is necessary in large quantities. In addition to escalating rigidity, preloading can boost precision.
Ball screws require mindful care in their doing work surfaces to avert contamination. Rubber or leather-based bellows can be employed to shield their surfaces, while optimistic air force can be used to the screw. Preloading eliminates backlash, a widespread dilemma amid screw assemblies. In addition to the several purposes for ball screws, they are also crucial to personal computer-controlled motion-manage programs and wire bonding. And there are numerous a lot more examples. So what are the benefits of employing these devices?
The spring preloading program uses a spring in amongst two ball nuts, applying tensional forces to the ball nuts. This spring creates grooves in the nut's center, which facilitates recirculation of the balls. The spring preloading mechanism is much more compact than the double nut system, but the lengthening of the lead decreases the ball screw's load capacity. Its compact style helps make it best for small clearance assemblies.


In addition to doing servicing jobs by yourself, the company of ball screws ought to offer reverse engineering services that will enable them to determine specific issues. The process of reverse engineering allows ball screw manufacturers to develop new ball screws and components. In the celebration that a ball screw is beyond repair, a maker can frequently save a significant volume of cash by fixing it alternatively of replacing it. In addition to fixing a ball screw, the manufacturer must also provide free of charge analysis providers for the component. Reconditioning and replacement require the use of new areas, although reloading and alternative change the screw.
Carrying out program routine maintenance checks on ball screw assemblies is vital for keeping optimal overall performance and extending their service existence. Additional time, abnormal dress in can lead to a assortment of troubles, like backlash, vibration, and ball bearing sound. In addition, the improved friction boosts the essential torque for turning a screw, leading to system failure and substantial downtime. To make certain that a ball screw is entirely purposeful, it should be checked for wear and maintain the correct lubrication technique.
Discoloration or pitting on a ball screw suggests that it is in need of mend. The exact same is true if there are chatter marks in the ball groove. Frequently, a ball screw requirements a new lubrication seal or wipers. Furthermore, it may be missing or over-wearing, which could consequence in long lasting failure. Lastly, too much power draw could be a sign of inappropriate lubrication or improper installation.
Proper maintenance is vital for any device resource. When carried out properly, machine instruments can final a long time with continuous use. Correct treatment and routine maintenance is essential to make sure extended existence and optimum performance. In addition to bettering machine tool uptime, suitable maintenance influences the precision and repeatability of the conclude merchandise. As a result, quality equipment instrument manufacturers focus on the functionality and toughness of ball screws. They create revolutionary types and lubricants to optimize the lifespan of their products.

China OEM 15 Years Professional Manufacturer CNC Ball Screw (SFk model)     near me factory China OEM 15 Years Professional Manufacturer CNC Ball Screw (SFk model)     near me factory

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