China best Professional Linear Bearing Factory CNC 3D Printer Aluminum Alloy or Plastic Linear Motion CZPT Rail Shaft Slide Ball Bearing (SBR TBR CZPT LM LME LMF LMK KH) with Good quality

Product Description

Professional Factory CNC Machine 3D Printer Aluminum Alloy or Plastic Linear Motion Xihu (West Lake) Dis. Rail Shaft Block Slide Ball Bearing (SBR TBR CZPT LM LME LMF LMK KH)

Product Description

Linear bearings are widely used in electronic equipment, pull tester and the digital three-dimensional coordinate measuring device, such as precision equipment, as well as multi-axis machine tools, press, tool grinder, automatic gas cutting machine, printer, card sorting machine, food packaging machines and other industrial machinery sliding components.
Type LM..UU;LME..UU;LM…LUU;LME..LUU;LM..OP; LMF..UU/LUU;LMK..UU/LUU;LMH..UU/LUU; KH
Model number LM bearing:
LM3,LM4UU,LM5UU,LM6UU,LM8UU,LM8S,LM10UU,LM12UU,LM13UU,LM16UU,LM20UU,LM25UU,LM30UU, LM35UU,LM40UU,              LM50UU,LM60UU, LM80UU,LM100UU
LME linear bearing: 
LME3UU,LME4UU,LME5UU,LME6UU,LME8UU,LME8S,LME10UU,LME12UU,LME13UU, LME16UU,LME20UU,LME25UU,LME30UU,LME35UU,LME40UU,LME50UU,LME60UU, LME80UU,LME100UU
 LM Open Series linear bearing:
LM10OPUU,LM12OPUU,LM13OPUU,LM16OPUU,LM20OPUU,LM25OPUU, LM30OPUU,LM35OPUU,LM40OPUU,LM50OPUU,LM60OPUU,LM80OPUU,LM100OPUU
Flange type linear bearing:
LMF6UU,LMF8UU,LMF10UU,LMF12UU,LMF13UU,LMF16UU,LMF20UU,LMF25UU,LMF30UU, LMF35UU,LMF40UU,LMF50UU,LMF60UU
LMK6UU,LMK8UU,LMK10UU,LMK12UU,LMK13UU,LMK16UU,LMK20UU,LMK25UU,LMK30UU,LMK35UU,LMK40UU,LMK50UU,LMK60UU
LMH6UU,LMH8UU,LMH10UU,LMH12UU,LMH13UU,LMH16UU,LMH20UU,LMH25UU,LMH30UU
KH type linear bearing
KH0622PP,KH0824PP,KH1026PP,KH1228PP,KH1630PP,KH2030PP, KH2540PP,KH3050PP,KH4060PP,KH5070PP
Material Gcr15 steel
Application Machine centers,Machine tools,Precision machining machines,Heavy cutting machines,
Punching machines,Marble cutting machines,Automatic equipments,Grinding machines,High speed transfer equipments,Injection molding machines,Measuring equipments

Aluminium Linear Ball Bearing Slide Unit 
Model number Supported Liner Rail: SBR16,20,25,30,35,40,50; TBR16,20,25,30  Length:0-6000mm
SBR..UU:  SBR10UU, SBR12UU, SBR16UU, SBR20UU, SBR25UU, SBR30UU, SBR35UU,SBR40UU, SBR50UU;
SBR…LUU:SBR10LUU,SBR12LUU,SBR16LUU,SBR20LUU,SBR25LUU,SBR30LUU,SBR35LUU,SBR40LUU,SBR50LUU
TBR..UU: TBR16UU, TBR20UU, TBR25UU, TBR30UU;TBR…LUU:TBR16LUU, TBR20LUU, TBR25LUU, TBR30LUU
SCS..UU:SCS6UU,SCS8UU,SCS10UU,SCS12UU,SCS13UU,SCS16UU,SCS20UU,SCS25UU,SCS30UU,SCS35UU,SCS40UU,SCS50UU
SCS..LUU:SCS8LUU,SCS10LUU,SCS12LUU,SCS13LUU,SCS16LUU,SCS20LUU,SCS25LUU,SCS30LUU,SCS35LUU,SCS40LUU,SCS50LUU
SC..VUU: SC8VUU,SC10VUU,SC12VUU,SC13VUU,SC16VUU,SC20VUU,SC25VUU,SC30VUU,SC35VUU,SC40VUU, SC50VUU
SHF..A:SHF8,SHF10,SHF12,SHF13,SHF16,SHF20,SHF25,SHF30,SHF35,SHF40,SHF50
SH..A(SK):SK8,SK10,SK12,SK13,SK16,SK20,SK25,SK30,SK35,SK40,SK50,SK60 
Material Aluminum Alloy
Appearance Anodized surface, high hardness, corrosion resistance, not rust, low noise
Application 3D printer, milling machine, CNC engine lathe, gear shaper, hobbing, precision machine tools, robotics, semiconductor, electric tools, sports equipment, woodworking machinery, food machinery, medical machinery, textile machinery, optical instruments, glass manufacturing, automobile manufacturing equipment, automation equipment, laser engraving, blanket machinery, ceramic tile machinery, printing machinery, electronic industry, man-made board bearing equipment, machinery, paper machinery, plastic machinery, inspection devices, transmission equipment, packaging machinery, textile machinery
OEM&Customized Accepted to drawing

 

Detailed Photos

 

 

Company Profile

 

HangZhou City CZPT Bearing Co., Ltd. is a professional manufacturer of linear motion products with many years’ experience. We are specialized in the producing linear shaft, linear guides, ball screws,  linear bearings, linear CZPT blocks, ball screw end supports, linear rails, cam followers with good quality and competitive price. Our company is located in HangZhou city, ZHangZhoug province, close to HangZhou port and HangZhou city.

Our products are widely used in precise machines, fitness equipment, printing machines, packing machines, medical and food machines, textile machinery and other machines and supplementary equipment. Our products sell well in North America, West Europe, Australia, Southeast Asia, Middle East, South America and other regions.

After Sales Service

Our Quality: 

Quality is the life . We use only the best quality material to ensure the standard of our product range is of the highest caliber.All products we sold out are strictly selected and tested by our QC department.
Warranty: 
All products may have problem after used by a period of time. We provide 1 year warranty for all products. 
Payment: 
We accept payment via TT (Bank transfer), Paypal,Western Union, and Money Gram.
We accept bank transfer for large orders. For small order, you’d better pay via Paypal,Western union or Money Gram
Shipping: 
We offer as many shipping options as possible, including DHL, UPS, TNT, FEDEX and EMS, Airfreight and by Sea.

FAQ

1. Are you factory or trading company?

We are professional manufacturer with most competitive price and high quality, 15 year’s experience.

2.What’s your product range?
We are specialized in producing linear shafts, linear bearings, linear guides, linear rails, ball screws,cam follower and other linear motion units.

3.Do you offer OEM&ODM services?
Yes, OEM, ODM is welcomed

4.How Can I get some samples?
We are honored to offer samples. You are requested to pay the shipping cost and some samples cost.

5.What does your factory do about quality control?
We uphold the tenet of “Quality is the future, we have passed ISO9001 certification, and we have strict procedures to control quality.

6. How can I get a quotation?
You can send quotation below or email to us. you can contact dirrectly with us through TM or WhatsApp,Skype as you like.Call any time if you are urgent.

 

Main Products

 

 

Screw Sizes and Their Uses

Screws have different sizes and features. This article will discuss screw sizes and their uses. There are 2 main types: right-handed and left-handed screw shafts. Each screw features a point that drills into the object. Flat tipped screws, on the other hand, need a pre-drilled hole. These screw sizes are determined by the major and minor diameters. To determine which size of screw you need, measure the diameter of the hole and the screw bolt’s thread depth.

The major diameter of a screw shaft

The major diameter of a screw shaft is the distance from the outer edge of the thread on 1 side to the tip of the other. The minor diameter is the inner smooth part of the screw shaft. The major diameter of a screw is typically between 2 and 16 inches. A screw with a pointy tip has a smaller major diameter than 1 without. In addition, a screw with a larger major diameter will have a wider head and drive.
The thread of a screw is usually characterized by its pitch and angle of engagement. The pitch is the angle formed by the helix of a thread, while the crest forms the surface of the thread corresponding to the major diameter of the screw. The pitch angle is the angle between the gear axis and the pitch surface. Screws without self-locking threads have multiple starts, or helical threads.
The pitch is a crucial component of a screw’s threading system. Pitch is the distance from a given thread point to the corresponding point of the next thread on the same shaft. The pitch line is 1 element of pitch diameter. The pitch line, or lead, is a crucial dimension for the thread of a screw, as it controls the amount of thread that will advance during a single turn.
screwshaft

The pitch diameter of a screw shaft

When choosing the appropriate screw, it is important to know its pitch diameter and pitch line. The pitch line designates the distance between adjacent thread sides. The pitch diameter is also known as the mean area of the screw shaft. Both of these dimensions are important when choosing the correct screw. A screw with a pitch of 1/8 will have a mechanical advantage of 6.3. For more information, consult an application engineer at Roton.
The pitch diameter of a screw shaft is measured as the distance between the crest and the root of the thread. Threads that are too long or too short will not fit together in an assembly. To measure pitch, use a measuring tool with a metric scale. If the pitch is too small, it will cause the screw to loosen or get stuck. Increasing the pitch will prevent this problem. As a result, screw diameter is critical.
The pitch diameter of a screw shaft is measured from the crest of 1 thread to the corresponding point on the next thread. Measurement is made from 1 thread to another, which is then measured using the pitch. Alternatively, the pitch diameter can be approximated by averaging the major and minor diameters. In most cases, the pitch diameter of a screw shaft is equal to the difference between the two.

The thread depth of a screw shaft

Often referred to as the major diameter, the thread depth is the outermost diameter of the screw. To measure the thread depth of a screw, use a steel rule, micrometer, or caliper. In general, the first number in the thread designation indicates the major diameter of the thread. If a section of the screw is worn, the thread depth will be smaller, and vice versa. Therefore, it is good practice to measure the section of the screw that receives the least amount of use.
In screw manufacturing, the thread depth is measured from the crest of the screw to the root. The pitch diameter is halfway between the major and minor diameters. The lead diameter represents the amount of linear distance traveled in 1 revolution. As the lead increases, the load capacity decreases. This measurement is primarily used in the construction of screws. However, it should not be used for precision machines. The thread depth of a screw shaft is essential for achieving accurate screw installation.
To measure the thread depth of a screw shaft, the manufacturer must first determine how much material the thread is exposed to. If the thread is exposed to side loads, it can cause the nut to wedge. Because the nut will be side loaded, its thread flanks will contact the nut. The less clearance between the nut and the screw, the lower the clearance between the nut and the screw. However, if the thread is centralized, there is no risk of the nut wedgeing.
screwshaft

The lead of a screw shaft

Pitch and lead are 2 measurements of a screw’s linear distance per turn. They’re often used interchangeably, but their definitions are not the same. The difference between them lies in the axial distance between adjacent threads. For single-start screws, the pitch is equal to the lead, while the lead of a multi-start screw is greater than the pitch. This difference is often referred to as backlash.
There are 2 ways to calculate the pitch and lead of a screw. For single-start screws, the lead and pitch are equal. Multiple-start screws, on the other hand, have multiple starts. The pitch of a multiple-start screw is the same as its lead, but with 2 or more threads running the length of the screw shaft. A square-thread screw is a better choice in applications requiring high load-bearing capacity and minimal friction losses.
The PV curve defines the safe operating limits of lead screw assemblies. It describes the inverse relationship between contact surface pressure and sliding velocity. As the load increases, the lead screw assembly must slow down in order to prevent irreversible damage from frictional heat. Furthermore, a lead screw assembly with a polymer nut must reduce rpm as the load increases. The more speed, the lower the load capacity. But, the PV factor must be below the maximum allowed value of the material used to make the screw shaft.

The thread angle of a screw shaft

The angle between the axes of a thread and the helix of a thread is called the thread angle. A unified thread has a 60-degree angle in all directions. Screws can have either a tapped hole or a captive screw. The screw pitch is measured in millimeters (mm) and is usually equal to the screw major diameter. In most cases, the thread angle will be equal to 60-degrees.
Screws with different angles have various degrees of thread. Originally, this was a problem because of the inconsistency in the threading. However, Sellers’s thread was easier to manufacture and was soon adopted as a standard throughout the United States. The United States government began to adopt this thread standard in the mid-1800s, and several influential corporations in the railroad industry endorsed it. The resulting standard is called the United States Standard thread, and it became part of the ASA’s Vol. 1 publication.
There are 2 types of screw threads: coarse and fine. The latter is easier to tighten and achieves tension at lower torques. On the other hand, the coarse thread is deeper than the fine one, making it easier to apply torque to the screw. The thread angle of a screw shaft will vary from bolt to bolt, but they will both fit in the same screw. This makes it easier to select the correct screw.
screwshaft

The tapped hole (or nut) into which the screw fits

A screw can be re-threaded without having to replace it altogether. The process is different than that of a standard bolt, because it requires threading and tapping. The size of a screw is typically specified by its major and minor diameters, which is the inside distance between threads. The thread pitch, which is the distance between each thread, is also specified. Thread pitch is often expressed in threads per inch.
Screws and bolts have different thread pitches. A coarse thread has fewer threads per inch and a longer distance between threads. It is therefore larger in diameter and longer than the material it is screwed into. A coarse thread is often designated with an “A” or “B” letter. The latter is generally used in smaller-scale metalworking applications. The class of threading is called a “threaded hole” and is designated by a letter.
A tapped hole is often a complication. There is a wide range of variations between the sizes of threaded holes and nut threads, so the tapped hole is a critical dimension in many applications. However, even if you choose a threaded screw that meets the requisite tolerance, there may be a mismatch in the thread pitch. This can prevent the screw from freely rotating.

China best Professional Linear Bearing Factory CNC 3D Printer Aluminum Alloy or Plastic Linear Motion CZPT Rail Shaft Slide Ball Bearing (SBR TBR CZPT LM LME LMF LMK KH)   with Good qualityChina best Professional Linear Bearing Factory CNC 3D Printer Aluminum Alloy or Plastic Linear Motion CZPT Rail Shaft Slide Ball Bearing (SBR TBR CZPT LM LME LMF LMK KH)   with Good quality