China Standard THK Ball Screw Bns2020A High Precision Ball Screws with high quality

Merchandise Description

THK ball screw BNS2571A large precision ball screws


NO 1. our adwantages:

1. 14 years bearing products manufacturing and 4 years exporting experiences.
2. OEM order and non-standard bearing order can be accepted.
3. Our main bearing products include Deep groove ball bearings, tapered roller bearings, cylindrical rollerbearings, spherical ball bearings, spherical roller bearings, single row angular contact bearings, double row angular contact bearings, needle roller bearings, thrust ball bearings, spherical plain bearings, spherical bearings, automotive bearings pump bearings, and many nonstandard bearings are also in our product range.
4. Sample available


 NO 2. OEM all model bearing

one. deep groove ball bearing 6000,6200,6300,6400,61800,61900,Z,RS,ZZ,2RS

two. spherical roller bearing 22200,22300,23000,24000,23100,24100,CA,CC,E,W33

three. cylindrical roller bearing N,NU,NJ,NN,NUP,E,ECP,ECM,ECJ

four. taper roller bearing 35710,30300,32200,32300,31300,32000

five. Aligning ball bearing 1200,1300,2200,2300,

6. needle roller bearing NA,NAV,NK,NKI,RNA,NK,RNAV,ZKLF,ZKLN,ZARF,ZARN

seven. thrust ball bearing 51100,51200,51300,51400,E,M

eight. angular contact ball bearing7000,7100,7200,7300,AC,BECBM,C 

nine. spherical plain bearing GE,GEG,GEEW,U,UC,UG,GX,GAC,SA,SABP

10.Wheel hub bearing /ceramic bearing/plastic bearing/lazy susan bearing


 NO 3. Tapered Roller Bearing Specification:

NO 4. Our Bearing Manufacturing unit:

NO 5. Our Bearing Warehouse:

NO 6. Our Bearing Packaging Box:

Why Choose Us:

l SFNB bearing company has 14 years manufacture experience and is one of the biggest adjustment center in north of China.
l We have large stock of original brand and our own brand bearing.
l Sample is available.
l We can accept OEM service.
l SFNB Bearing Co., Ltd. Was founded in March 2008. We were principally engaged in the research, development and manufacture of bearings in the early stage. Now we are mainly engaged in the sales of internationally-famous brand bearings. Our products are sold in Britain, America, Japan, Italy and Southeast Asia, well appreciated by their purchasers. 

Advantages of Ball Screws and How They Can Reward Your Apps

When deciding on a ball screw for your application, there are a number of elements to contemplate. This post will go over high mechanical efficiency, low friction, a number of fix options, and application specifications. Selecting the right ball screw can assist you get the job completed speedily and successfully. To make your choice less complicated, think about the following guidelines. Read through on to understand about some of the advantages of ball screws and how they can benefit your apps. Below are some of the most typical sorts:

Large mechanical performance

The mechanical efficiency of ball screws can be calculated using the axial load take a look at. The axial load is equal to .5 x FPr / 2Fpr. The elastic deformations are calculated as DL1 and DL2, respectively. Frequent engineering processes perform at 90 % dependability nonetheless, specified sectors need greater trustworthiness, which has a immediate affect on the dynamic load ability. The axial load take a look at is one of the most commonly utilized strategies to decide the mechanical efficiency of ball screws.
In order to accomplish large translation, ball screws need to be designed with high stiffness and positioning precision. In addition, large preloads boost the initial driving torque and lead to a lot more friction and warmth. Other critical layout criteria include low driving torque and reduced slip motion. This indicates that the high translation capability of ball screws need to be properly matched to the overall application. The following are some common layout conditions for ball screws. You can select the very best type of ball screw for your wants.
The high mechanical performance of ball screw is achieved by steering clear of the typical sag and pitch issue. The ball monitor style assists to lessen the centrifugal pressure. The ball screw's diameter can be adjusted by changing the centre pitch of the nut on two ball tracks. The nut's axial load is also modified by way of the offset centre pitch. This strategy allows the customers to boost the mechanical performance of ball screw by up to 40%.
When calculating the mechanical performance of ball screw, consider the application's surroundings, velocity, and other aspects. If the software needs precision and accuracy, then the ball screw is the proper selection. The engineering office of a ball screw maker will meticulously assessment the software factors and arrive up with a design that satisfies the application's anticipations. Additionally, some companies even offer customized ball screws, which can be customized to your requirements.

Reduced friction

The functioning performance of a reduced-friction ball screw is characterised by its minimal friction. This screw has a structure that transmits forces by way of rolling metal balls. The torque is calculated by calculating the load and the lead screw's proportions. This variety of screw can be used for a assortment of various programs, such as hydraulic systems. Go through on to find out more about this variety of screw and how it can help you construct a a lot more dependable and sturdy auto.
The vital speed of a ball screw is increased than that of a direct screw, so this variety of screw can accommodate greater masses and speeds. It also has a reduced friction coefficient, which lowers the sum of warmth produced. Higher-good quality ball screws can stand up to for a longer time obligation cycles than normal direct screws. Even so, in order to evaluate the two, you have to consider into account the obligation cycle. Reduced-friction ball screws are far more sturdy than direct screws, and the responsibility cycle is only one of the elements you ought to think about when picking them.
The ball bearings are the most notable component of a lower-friction ball screw. Their principal operate is to minimize the friction between the nut and the shaft. With no them, the friction would be as well higher. This feature is attainable many thanks to the ball bearing's groove profile. Two arcs intersect at the speak to details on the shaft and nut. As a result, the ball bearing decreases friction in a way that is basically non-existent without the bearing.
The mechanical performance of a lower-friction ball screw is really substantial. The standard ball screw is up to ninety% effective, but some kinds can achieve a greater efficiency. They are frequently utilized in device slides, presses, and linear actuators. The higher effectiveness of a minimal-friction ball screw tends to make it a great decision for many diverse programs. This kind of screw is created of many major factors. The ball bearings offer the helical raceway for the ball assembly and threaded shaft is the screw part. The ball screw is comparatively more bulky than a standard leadscrew, but the overall dimensions is scaled-down than its direct counterpart.

A number of mend options

A damaged ball screw will normally exhibit visible bodily symptoms, like sound or vibration. Furthermore, worn ball screws will require much more horsepower and torque to run. They may possibly also cause guide precision problems. Luckily, there are a number of fix choices for ball screws. You can get new ball screws to restore preload and minimize backlash. But there are some warning indications to search out for initial. Maintaining a near eye on your ball screw's well being can aid you stay away from a pricey replacement.
Search for a ball screw repair firm with a confirmed track document of servicing all types of ball screws. The service must offer you a free of charge evaluation and 3 types of provider: reload, recondition, and substitute. Reload is the most straightforward choice and entails cleansing and sprucing the screw and ball nut. Reconditioning or replacement, on the other hand, demands new components. Decide on the a single that provides the best price for your income.
EP provides an emergency services and superior service for your ball screws. Their British isles provider includes shipping and delivery and worldwide delivery. All ballscrew repairs are lined by a entire service warranty, and the firm is identified for offering competitive pricing. If you do need a ball screw mend, search no additional. Contact K+S right now to examine your distinct requirements. You may be glad you did. You may conserve up to 70% over getting a new ball screw.
Even though ball screw restore is an easy and affordable selection, it may possibly be required to have it changed more regularly than the normal. In addition to replacing worn ball screws, you may possibly need to have to take into account a distinct type of fix. This process includes grinding the ball nut and journal diameters again to their first dimensions. The good news is, stage 4 is the most high-priced but can restore a screw's lifespan. This is also the most extensive kind of restore available for a ball screw.

Software demands

A ball screw is an successful solution for precision movement manage in several applications, including automotive and aerospace. These screw-type devices are hugely resistant to corrosion, and the alternating metal-ceramic architecture makes certain severe trustworthiness and sturdiness. For the aerospace sector, a ball screw replaces the standard hydraulic system, and the product is utilised in wind turbine blade pitch and directional situation, solar panel motion, and gate handle in hydroelectric stations. Ball screws are also employed in motorised inspection tables, stage photolithography equipment, microscopic integrated circuits, and a lot of other purposes.
The most essential demands for a ball screw assembly are backlash and bearing help. Backlash is the volume of axial movement among the screw and nut, which sales opportunities to positioning mistakes. Even though this axial motion is minimum, it can be as small as 70um. If the preload is too huge, a ball screw may endure from too much heat. Depending on the software, the amount of preload essential can be altered to improve the all round performance of the gadget.
The option of screw is identified by the load capability. For case in point, plastic nuts are commonly utilised for mild masses, although bronze nuts are used for masses that weigh numerous thousand kilos. Guide screws are not specifically trustworthy in scenarios exactly where load needs are extremely substantial, and a ball screw will usually be a better choice. The reduce friction of a ball screw permits it to face up to larger responsibility cycles than a lead screw. When the load requirements exceed guide screws' ability, a ball screw is the far better choice.
A step photolithography equipment is one more illustration of an application exactly where ball screws perform an crucial function. This device helps makers produce microscopic integrated circuits by harnessing the response of light-weight. A stepper is a vital piece of this device, as it controls the positioning of light exposure on the silicon wafer. Substantial precision is essential for this application. In the long run, a ball screw will make the procedure simpler. Its confirmed file for assembly instrumentation requirements is an exceptional case in point of its worth in the laboratory.


The international industry for ball screws is increasing at a constant speed, but what drives the progress? In the ball screw market, performance, price, and analytical predictability are the primary issues of OEMs. This marketplace review provides in-depth evaluation of these market place dynamics. You may understand how to greatest compete in the world-wide market place for ball screws. Listed here are some tips to aid you get began:
Make certain you have a good grasp of the distinctions in between guide and ball screws. The cost of guide screws depends on their performance, and some of them can achieve C5 degree precision. Nevertheless, ball screws are a lot more durable and far more repeatable. Besides, direct screws are unable to accomplish substantial precision since of their sliding motion, which steadily grinds absent the precision. As a consequence, the value of a ball screw is more than compensated by the improved performance of OEMs.
To get the ideal value for ball screw, appear for a manufacturer with a strong technical force. Most of these companies have advanced gear and strict high quality manage systems. They draw inspiration from the demands of the marketplace and have continuously improved their technological material to keep ahead of the opposition. If you're in Pune, look for a producer with this technological innovation. It will not likely be hard to do enterprise with these kinds of a provider. The company will also give you with make contact with info, such as their office tackle and telephone numbers.
When selecting amongst lead and ball screws, you require to understand how they function and why they are more dependable. Ball screws are a lot more durable than direct screws, which is 1 of the principal causes for their acceptance. Guide screws, on the other hand, are often employed for vertical purposes. Guide screws are likely to be cheaper than ball screws, but they have more limitations. When used effectively, even so, they can boost the life and efficiency of machines. In standard, they are corrosion-resistant and provide wonderful design adaptability.

China Standard THK Ball Screw Bns2020A High Precision Ball Screws     with high qualityChina Standard THK Ball Screw Bns2020A High Precision Ball Screws     with high quality

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