China OEM Bearing Steel 20mm Ball Screw Sfu2005-3 wholesaler

Solution Description

Bearing metal 20mm ball screw SFU2005-three

Rapid Specifics
Producing Method:Rolled Thread
Materials:bearing steel
Design Variety:SFU2005-3
Area of Origin:ZheJiang China (Mainland)



ball screw SFU2005-3
1. Low noise 
2. Aggressive price 
three. High acceleration and deceleration velocity 
four. Accuracy grade


Ball screw introduction:

  Ball screw is a preferred product which turns rotary movement into linear movement, or linear motion into rotary movement. Ball screw is made of  screw, nut and ball . Its perform is to change the rotary motion into linear movement, which is a additional extension and improvement of ball screw. The importance of this advancement is to transfer into a rolling bearing from sliding motion. With small friction, ball screws are broadly utilized in numerous industrial products and precision instruments.


one. CNC machinery 
two. Substantial Velocity Machinery 
three. Industrial Machinery 
four. Digital Equipment


   Ball screw(ballscrew): We provide Ball Screws at a total assortment of higher efficiency, cost successful, and precision for all purposes. Ballscrews are critical components in device tools and generation machinery. 
   Ball Screw Characteristics Contain: Extended operating existence, Large guide accuracy to C3 and C5 standards, quickly supply on a lot of types. 


Kind LM-UU: This is the metric dimension sequence with seal used most often in Korea and Japan.

Kind LME-UU: This is the metric dimension sequence with seal employed most frequently in Europe.

Type LMB-UU: This is the inch dimension series with seal employed most regularly in United kingdom&Usa

LM linear bearing: LM3UU, LM4UU, LM5UU, LM6UU, LM8UU, LM8S, LM10UU, LM12UU, LM13UU, LM16UU, LM20UU, LM25UU, LM30UU, LM35UU, LM40UU, LM50UU, LM60UU, LM80UU, LM100UU

LME linear bearing:

LMB linear bearing:

LM Open up Collection linear bearing: LM10OPUU, LM12OPUU, LM13OPUU, LM16OPUU, LM20OPUU, LM25OPUU, LM3OOPU, LM35OPUU, LM40OPUU, LM50OPUU, LM60OPUU, LM80OPUU, LM100OPUU

KH variety linear bearing:
KH0622PP, KH0824PP, KH1026PP, KH1228PP, KH1630PP, KH2030PP, KH2540PP, KH3050PP, KH4060PP, KH5070PP

Stell Cage Linear Bearing: LM8GA, LM10GA, LM12GA, LM16GA, LM20GA, LM25GA, LM30GA, LM35GA, LM40GA, LM50GA, LM60GA

SDM series Steel cage linear bearing(As exact same as Relieve SDM collection): SDM16, SDM20, SDM25, SDM30, SDM35, SDM40, SDM50, SDM60, SDM80, SDM100, SDM120, SDM150

Flange Sort Linear Bearing:




Linear Slide Unit:

one. Shut Kind:
SC8UU, SC10UU, SC12UU, SC13UU, SC16UU, SC20UU, SC25UU, SC30UU, SC35UU, SC40UU, SC50UU, SC60UU (typical type)

SC8WUU, SC10WUU, SC12WUU, SC13WUU, SC16WUU, SC20WUU, SC252UU, SC30WUU, SC35WUU, SC40WUU, SC50WUU (lengthy sort) SC8VUU, SC10VUU, SC12VUU, SC13VUU, SC16VUU, SC20VUU, SC25VUU, SC30VUU, SC35VUU, SC40VUU, SC50VUU(Brief sort)

2. Open Sort: SBR10UU, SBR12UU, SBR13UU, SBR16UU, SBR20UU, SBR25UU, SBR30UU, SBR35UU, SBR40UU, SBR50UU(Standard type) SBR10LUU, SBR12LUU, SBR13LUU, SBR16LUU, SBR20LUU, SBR25LUU, SBR30LUU, SBR35LUU, SBR40LUU, SBR50LUU(Lengthy kind) TBR16UU, TBR20UU, TBR25UU, TBR30UU (This type with the flange at the pillow block)

Shaft Assist: SK/SHF SHAFT Help: SK8, SK10, SK12, SK13, SK16, SK20, SK25, SK30, SK35, SK40, SK50, SK60 SHF8, SHF10, SHF12, SHF13, SHF16, SHF20, SHF25, SHF30, SHF35, SHF40, SHF50,

Ball Screws - Dimensions, Applications, and Benefits

Ball screws are well-liked, light-weight, precision mechanical factors. They are typically utilised in machinery, gears, and knurled objects. These screw-like parts can be very easily preserved and lubricated making use of oil. This report discusses their proportions, applications, and advantages. The subsequent sections provide added details to support you decide on the correct ball screw for your needs. We'll go over some of the critical attributes of ball screws and what tends to make them so valuable.


A crucial issue with nut-to-ball screw backlash is the ability of the nut to go freely on the threads of the ball screw. To resolve this difficulty, a patented solution was designed. The patent, 4,557,156, describes an innovative technique for preloading ball screws and nuts. By making use of a preloading nut, the threads of the ball screw are prevented from relocating again and forth with the nut.
A mechanical design that involves axial engage in involves a whole lot of mass, inertia, and complexity. These traits lead to wear and rust troubles. Preloading ball screws utilizing a dynamic technique minimizes mechanical complexity by enabling preload to be modified even though the mechanism is working. This also lowers the variety of mechanical components and simplifies producing. Hence, the preloading method of the current invention is useful.
The servo motors utilised in the program monitor the output torque and modify the electricity to one motor in a dynamic way, thus making a torque differential between the balls. This torque differential in turn generates a preload power among the ball nuts. The servo motors' output torque is managed in this fashion, and the machine's backlash clearance can be exactly managed. Therefore, the device can perform several responsibilities with improved precision.
A number of prior artwork methods for preloading ball screws are explained in depth in FIG. 3. The helical thread grooves of the ball screw 26 and the nut 24 define a pathway for roller balls to journey along. The stylized broken line indicates the basic situation of the axis of the ball roller screw 26. The corresponding ball screws are used in a variety of purposes. This technique may be utilised to manufacture personalized-sized screws.


Ball screws are mechanical components that roll balls via a groove. Poor lubrication can lessen the daily life of these screw components. Inappropriate lubrication can direct to shaft hurt, malfunction, and decreased overall performance. This report discusses the importance of appropriate lubrication and how to do it. You can find out how to effectively lubricate ball screws in the subsequent paragraphs. Right here are some ideas to guarantee lengthy-expression efficiency and security of ball screws.
The initial issue you must do is decide the type of lubricant you'll be employing. Oils are desired because they have a tendency to continue being inside the ball nut, and grease can develop up in it. Oils also have a tendency to have far better anti-corrosion qualities than grease. Nonetheless, grease is much more probably to be clogged with debris than oils. So, before you decide on the lubricant that is appropriate for your screw, make certain you clean it off.
The oil used in ball screw lubrication have to be utilized at a managed price. It can prevent metallic-on-steel speak to and clean out contaminants as it passes via the ball nut. Nonetheless, oil as a lubricant is expensive and can contaminate the procedure if it mixes with the chopping fluid. Grease, on the other hand, is low-cost, demands fewer applications, and does not contaminate process fluids.
If you use a synthetic oil for lubrication, make positive to select a viscosity that is proper for the operating temperature. Oil viscosity can improve the temperature of the ball screw assembly, and excessive oil can lessen its existence. A appropriate volume of oil will lessen the temperature of the ball screw assembly, whilst too little will improve friction and use. Use the pursuing suggestions to figure out the appropriate sum of oil for your screw.


Dimensions of ball screws are a extremely critical facet to take into account when determining the best type for your software. Technological acceptance circumstances for ball screws specify the authorized deviations for the duration of acceptance assessments. The tolerance course can also adjust, relying on the demands of a distinct software. The adhering to desk lists the most critical tolerance values for the total assortment of screw lengths. This desk is a useful guidebook when searching for a distinct screw. The table beneath lists the dimensions of widespread ball screws.
The axial load used to a ball screw is .5 x Fpr / 2Fpr. The minimal screw diameter is identified as the root diameter. The axial load leads to the screw shaft to deform in a particular way (DL1 and DL2). The elastic deflection induced by the load on a ball screw is called its rigidity. This rigidity is important for calculating sizing parameters for a ball screw.
The preload value of the ball screw has an effect on the dynamic load capacity. A preload of 10 percent is regarded ample, whilst a price higher than this could compromise the screw's sturdiness. In general, a high preload price will outcome in a lower dynamic load ability and better use. Nonetheless, the preload benefit must be calculated with the relevant screw parameters. This is simply because a large preload benefit decreases the screw's longevity.
To make sure that your screw fulfills the specified parameters, the dynamic load capability should be calculated. This is the volume of drive a ball screw will face up to beneath a specified load. This calculation also includes toughness checks. If you are using a ball screw for apps that need additional toughness, it might call for a safety issue. For case in point, if the screw is employed for double-axial mounting, then the outer ball nut need to be inserted into the nut, triggering a secondary load.


The present creation offers a straightforward, nevertheless hugely effective way to mount a ball screw. Its absence of insert slots or by way of holes can make it simpler to assemble and gives a far more uniform nut. The absence of mechanical characteristics also lowers heat remedy problems, and the nut's hardness can be uniformly hardened. As a end result, the screw's all round overall performance is improved. Listed here are some illustrations of programs for ball screws.
Preloading is the process of implementing drive to a ball screw. This increases the rigidity of the screw assembly and eradicates backlash, which is missing movement caused by clearance between the nut and ball. Backlash disrupts repeatability and accuracy. Spacer preloading involves inserting drive among two ball nuts and transmitting it by means of the grooves. This approach is best when preloading is necessary in big portions. In addition to escalating rigidity, preloading can boost precision.
Ball screws need cautious treatment in their working surfaces to stop contamination. Rubber or leather-based bellows can be utilised to safeguard their surfaces, even though constructive air force can be used to the screw. Preloading eradicates backlash, a frequent difficulty among screw assemblies. In addition to the numerous applications for ball screws, they are also vital to laptop-managed movement-manage programs and wire bonding. And there are a lot of far more examples. So what are the benefits of employing these devices?
The spring preloading method uses a spring in amongst two ball nuts, implementing tensional forces to the ball nuts. This spring results in grooves in the nut's middle, which facilitates recirculation of the balls. The spring preloading system is much more compact than the double nut system, but the lengthening of the lead reduces the ball screw's load capability. Its compact design and style helps make it best for small clearance assemblies.


In addition to executing upkeep duties oneself, the producer of ball screws must provide reverse engineering solutions that will enable them to identify particular problems. The approach of reverse engineering permits ball screw makers to develop new ball screws and elements. In the celebration that a ball screw is outside of mend, a producer can usually save a substantial amount of money by repairing it rather of replacing it. In addition to restoring a ball screw, the manufacturer must also provide totally free analysis services for the element. Reconditioning and substitute involve the use of new elements, whilst reloading and alternative substitute the screw.
Executing program upkeep checks on ball screw assemblies is vital for preserving best functionality and extending their service lifestyle. Additional time, abnormal wear can guide to a range of problems, including backlash, vibration, and ball bearing sound. In addition, the improved friction boosts the needed torque for turning a screw, triggering program failure and important downtime. To guarantee that a ball screw is completely useful, it need to be checked for dress in and maintain the appropriate lubrication program.
Discoloration or pitting on a ball screw implies that it is in require of mend. The same is correct if there are chatter marks in the ball groove. In many cases, a ball screw demands a new lubrication seal or wipers. Additionally, it may possibly be missing or more than-donning, which could outcome in everlasting failure. Last but not least, extreme electrical power attract could be a indication of poor lubrication or poor set up.
Correct servicing is important for any machine device. When performed effectively, device equipment can very last a long time with steady use. Appropriate treatment and routine maintenance is essential to make sure extended lifestyle and best efficiency. In addition to improving device device uptime, appropriate servicing influences the accuracy and repeatability of the finish item. As a result, quality machine tool makers emphasis on the performance and toughness of ball screws. They create progressive patterns and lubricants to optimize the lifespan of their merchandise.

China OEM Bearing Steel 20mm Ball Screw Sfu2005-3     wholesaler China OEM Bearing Steel 20mm Ball Screw Sfu2005-3     wholesaler

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