China Standard I+F Precision Ground/Grind Ball Screw for CNC Machine with Hot selling

Merchandise Description

I+F Precision Floor/Grind Ball Screw for CNC Device



one. Automated managing device
two. Semi-conductor business
three. General sector machinery
4. Medical equipment
five. Solar CZPT gear
6. Machine device
seven. Parking method
8. Substantial-speed rail and aviation transportation equipment, and so forth.
Comprehensive Specification:

Our Company

As a comprehensive industrial organization that integrates R & D and sales services, with above 20 years' experience, specially the assured provider of China Producing Community, our factory covers an area of 10,000 square meters, which allows really rapid delivery.
Owning the most advanced CNC automatic production line, automatic assembly line, and a varied of testing equipment, our bearings mainly go over SKF, NSK, NTN, KOYO, TIMKEN, NACHI, THK etc., which meets all low noise, low vibration, low friction, high precision, high sealed, high turning speed and long life requests.
one.Samples amount: 1-10 pcs are available.
two.Totally free samples: It is dependent on the design NO., content and amount. Some of the bearings samples require customer to pay   samples cost and transport expense.
three.It is far better to start off your get with Trade Assurance to get complete safety for your samples buy.

The customized Emblem or drawing is satisfactory for us.

1.MOQ: ten pcs blend distinct regular bearings.
2.MOQ:  5000 pcs personalized your brand name bearings.

OEM Policy
one.We can printing your manufacturer (logo,artwork)on the shield or laser engraving your brand on the defend.
two.We can custom your packaging in accordance to your layout
three.All copyright possess by consumers and we promised don't disclose any information.

Make sure you visit our 1Xihu (West Lake) bearings website, we strongly stimulate that you can connect with us via electronic mail, thanks! 


Specifying a Ball Screw

When you want a higher-quality ball screw, it is critical to pick a single with the proper dimensions and requirements. When you are looking for the ideal solution, you ought to contemplate characteristics this kind of as preloading, area complete, and inside return technique. You can understand more about these characteristics in this post. If you might be uncertain which sort of ball screw to choose, speak to a reliable supplier for more assistance. To uncover the best product for your demands, click on right here!


When specifying a Brinelling ball screw, it is crucial to know how significantly axial load it can properly bear. The static load capability, which is presented in the catalogue, applies only to pure axial loading, and any radial load that is smaller than 5% of the axial load won't pose a problem. For much more info, get in touch with a CZPT engineer. Brinelling ball screw services existence calculation ought to be carried out employing the pursuing information:
Preload: The quantity of load a ball screw can take care of for the duration of a solitary revolution. Preload is the load used prior to the ball screw commences transferring, and the load is usually in between five and 10 percent of the dynamic capability. However, a ball screw that is matter to vibration will encounter higher preload, necessitating a lot more frequent lubrication. The ensuing mechanical stress could result in the ball screw to buckle, or result in the nut to re-flow into the balls.
Vital ball speed: The highest speed at which the ball can transfer through the ball nut is known as the vital ball pace. In distinction, managing the ball screw at its crucial shaft speed can direct to excessive vibrations, major to untimely failure of the finish support bearings and brinelling of the ball monitor. Hence, it is recommended to run a ball screw at a lower speed than the crucial ball speed to avert brinelling and plastic deformation of the balls.
Bogus brinelling: False brinelling is a form of Fretting. Fake brinelling occurs when the bearings are not rotating. The motion will outcome in depressions or use marks in the bearing raceway. This will cause sound, put on, and eventual tiredness. If these problems persist, a more recent ball screw must be used to examination the technique. The machine must be operate for numerous hours and tested prior to changing the bearing.


The method of preloading ball screws minimizes backlash by implementing pressure to the threads in the reverse route of the screw's path of rotation. It stops any movement of the screw relative to the nut. Numerous methods are used for preloading. A common a single is to use outsized balls inside of the ball nut. A double nut method could also be employed. Both strategies are equally effective. No matter of the method used, the conclude outcome is the identical - minimal backlash and enhanced efficiency.
In the typical technique of preloading ball screws, the motors operate concurrently in opposite directions, creating them to have a relative movement of about equal magnitudes. This decreases the frictional resistance of the method, ensuing in quick traverse. The technique is able to function with minimum backlash during a hundred and ten inches of vacation, reducing the warmth created by the drive nuts and the problems associated with ball screw heating. Moreover, this method can be utilised in a vast variety of applications.
One more method of preloading ball screws is recognized as the ball-pick method. This strategy contains the use of over-sized balls that force the balls into more contacts with the screw and nut than a normal ball screw. The advantage of this method is that it reduces backlash because the balls are not machined to large tolerances. The disadvantage of this strategy is that the ball screw will cost far more to manufacture than a standard ball screw and nut.
A traditional layout includes a mechanical mechanism that makes use of a collection of balls to rotate a shaft. The issue of backlash is exacerbated by the mass of the shaft. The mechanical system is much more complex than necessary and frequently needs a lot of work. The present invention eliminates these problems by providing an improved method and equipment for driving ball screws. This method supplies a far more productive preload force that is dynamically adjustable while the system is operating. The technique can also boost friction and dress in.

Inside return technique

There are two diverse types of ball screws. The first sort is external and the second is interior. The external sort employs return tubes that protrude from the ball nut and lengthen previously mentioned and around the exterior of the screw. The inner variety makes use of a single tube that spans the ball track, whilst the more typical layout employs multiple tubes spanning 1.5 to 3.5 ball tracks. The interior method involves a solitary return tube and a number of pickup fingers that guidebook the balls into the tubes.
The exterior return tube style is an less difficult, much less high-priced decision. The exterior ball return method has constrained space but can handle a broad assortment of shaft diameters and qualified prospects. However, its bodily dimensions makes it incompatible with a lot of higher-pace apps. As a result, mindful consideration should be provided to the mounting choices. Inside ball return systems are greatest suited for little leads and ball measurements. Individuals that need a high speed will probably benefit from the exterior ball return program.
Interior ball screw engineering has also stored pace with the demands of linear drive methods. Ball screw engineering is now more durable than ever. Strong internal ball return methods flow into ball bearings through a sound pickup pin. These deflectors help the balls return to the screw in the appropriate place. They are vital components in pc-controlled motion management programs and wire bonding. If you're intrigued in the most recent advances in linear screw engineering, contact us nowadays.
Ball screws are exceptional to guide screws in numerous ways. Ball screws are far more successful than direct screws, converting 90% of rotational movement into linear motion. As a consequence, they are much more expensive than guide screws and acme screws. They also offer a smoother motion over the entire vacation selection. Moreover, they require significantly less electricity for the same overall performance. It really is no question that the ball screw is so popular in a lot of distinct apps.

Surface complete

The area complete of a ball screw is one of the crucial elements in identifying the overall performance of the method. A ball screw with a very good area end has excellent overall performance in rolling resistance, backlash, and put on characteristics. Nevertheless, it is crucial to increase the area finish of a ball screw to attain precision motion, reduced dress in, and low sounds. To accomplish this, special wire brushes will be utilised to polish precision-floor shafts.
For a ball screw to carry out properly, it need to be difficult, have a smooth area, and keep lubricant. The floor finish of a ball screw need to be smooth, free of cracks, and keep the lubricant properly. Cracks and annealing are each undesirable throughout the manufacturing method, so a good quality equipment ought to be utilised for its floor end. Throughout the generation approach, a CBN cutting insert with entire round or gothic arch profile can be used to achieve a large-top quality surface area end.
Another finishing procedure utilised in the manufacture of ball screws is lapping. Lapping improves area good quality and journey variation. It involves intricate relative actions of abrasive particulates with the workpiece. This gets rid of a thin layer of material from the workpiece, enhancing its surface top quality and dimensional accuracy. The lapping process can be carried out underneath reduced-force problems. It also enhances the friction torque and lubrication.
In lapping experiments, friction torque has the biggest influence on travel variation and floor roughness. A friction torque of about one N x m is optimum. In addition, rotational pace has only a small result. The very best mixture of these parameters is 1-1.5 N x m and thirty rpm. The minimal surface finish of a ball screw is around 800 mesh. The smallest variation in travel is noticed at all around half-way through the travel.


Correct lubrication of ball screw assemblies is vital to preserve optimum functionality and lifestyle. Ball screw assemblies must be lubricated with grease, which is launched right into the ball nut. The lubrication port can be found at numerous spots on the solution, which includes on the flange or in the external threads of the ball nut. Some ball nuts also characteristic a zerk fitting for simpler lubrication.
The lubrication of ball screws is necessary in the situation of functioning problems more than 100oC. The minimal load for a ball screw is usually understood with a preload pressure. The lubricant is conveyed by way of the slim lubrication gap due to the relative motion of the two surfaces. The enhanced viscosity of the lubricant allows separation of the contact surfaces. To steer clear of above-lubrication, it is essential to check the lubricant stage frequently.
The oil employed in lubrication of ball screw assemblies can be either mineral or synthetic. The oil is composed of mineral or synthetic oil, additives, and a thickening agent, this kind of as lithium or bentonite. Other thickening agents incorporate lithium, barium complexes, or aluminum. The lubricant quality NLGI is a extensively employed classification for lubricating greases. It is not enough to select a distinct variety of lubricant for a particular application, but it supplies a qualitative measure.
Despite being essential to the overall performance of a ball screw, lubrication is also crucial to its lifespan. Different sorts of lubricant offer you corrosion safety. Just before making use of a lubricant, make positive to completely cleanse and dry the ball screw. If there is any buildup of dust, it may damage the screw. To stop this from taking place, you can use a solvent or lint-free of charge fabric. Lubrication of ball screw assemblies can drastically increase the life of the assembly.

China Standard I+F Precision Ground/Grind Ball Screw for CNC Machine     with Hot sellingChina Standard I+F Precision Ground/Grind Ball Screw for CNC Machine     with Hot selling

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