Tag Archives: long shaft

China Best Sales 3 4 6 Axis Machining Crankshaft for Motorcycle Racing Worm Gear Step Long Spindle Motor Eccentric Grinding Connecting CNC Shaft with Free Design Custom

Part Name:3 4 6 Axis Machining Crankshaft for Motorcycle Racing Worm Gear Step Long Spindle Motor Eccentric Grinding Connecting CNC Shaft Product Presentation Product Name3 4 6 Axis Machining Crankshaft for Motorcycle Racing Worm Gear Step Long Spindle Motor Eccentric Grinding Connecting CNC ShaftMaterialsAluminum, copper, brass, stainless steel, steel, iron, alloy, zinc etc.Other Special Materials:Lucite/Nylon/wood/titanium/etcProcessingCNC turning, CNC milliing, CNC machining, (Grinding, EDM wire cutting)Surface TreatmentAnodizing,Brushing,Galvanized,laser engraving, Silk printing,polishing,Powder coating,etcTolerance+/-0.005mm, YSD Auto Gearbox Parts Oem 33384-60 0571 338460090 Synchronizer Ring For CZPT Hiace 100% QC quality inspection before deliveryTesting EquipmentVMS , Industrial camera microscope, CCD optical screening instrument Lead Time1-2 weeks for samples, 3-4 weeks for mass productionDrawing AcceptAutoCAD(DXF,DWG), PDF, Step, igs.Payment TermsTrade assurance, TT/ Paypal / West Union Get A Free Quotation Via Us >>>>>> Go Custom photo and reviews Get Free Quotation >>>>> OEM Customized Transmission Gearbox Speed Increasing Speed Reducer Gearbox > Company Profile Company profileHangZhou Huachangxing industrial( HangZhouXY top) is a professional CNC Machining Factory established in 2011 located in HangZhou,China. Specialized in making high quality machined components in a variety of materials with a range of surface treatments to meet the needs of varying applications. For example, Our parts applied to the area of automotive, aerospace Agriculture, Medical,Commercial mechanical, industrial, 3D printing, as well as many other structures. What makes us different from other machining companies is that we are focused on quality control and lead time efficiency. What s more, In order to achieve the incredible dimensions, we imported most our machines from Japan branded TSUGAMl. the minimum tolerance could reaches to 0. 005MM. Now total machines already reaches to 105 machines which enable us to make complex and micro machine precision parts faster than ever, also equipment with robots to achieve the automated production. Product MachineryMachine Name Brand Model Quantity ConditionCNC milling machine JD T540 4 Axis 10 Good CNC turning machine (1) XC lSGT-16 with robot 20 GoodCNC turning machines (2) JC cf36 auto-feeder 55 Good precise digital-controlled machine tool ( domestic) JD D206 6 Axis 24 Goodprecise digital-controlled machine tool ( Japan) TSUGAMI S206A 6 Axis 2 Good Customization Process Product packaging Skin Packing Foam Packing Corner Protector Certifications Why Choose Us Service1. We want clients more than profits.2. Always quality first 3. 100% QC4. Delivery on time5. Real shipping cost, we can provide the bill of the express agency6. Won’t charges extra fees after making, even quoted wrong we shall still make and afford that by our own.Equipment1.Total more than 110 machines;2.Imported Japanese equipment;3.Tolerance could be +/-0.005MM4.Ensure stable and high precision parts5.Automatic lathe with robot could meet the requirement of mass productionExperience1. More than 10 years experience;2. Experienced workers3. Engineers provide technical assistance. Contact Us

An Overview of Worm Shafts and Gears

This article provides an overview of worm shafts and gears, including the type of toothing and deflection they experience. Other topics covered include the use of aluminum versus bronze worm shafts, calculating worm shaft deflection and lubrication. A thorough understanding of these issues will help you to design better gearboxes and other worm gear mechanisms. For further information, please visit the related websites. We also hope that you will find this article informative.
worm shaft

Double throat worm gears

The pitch diameter of a worm and the pitch of its worm wheel must be equal. The two types of worm gears have the same pitch diameter, but the difference lies in their axial and circular pitches. The pitch diameter is the distance between the worm’s teeth along its axis and the pitch diameter of the larger gear. Worms are made with left-handed or right-handed threads. The lead of the worm is the distance a point on the thread travels during one revolution of the worm gear. The backlash measurement should be made in a few different places on the gear wheel, as a large amount of backlash implies tooth spacing.
A double-throat worm gear is designed for high-load applications. It provides the tightest connection between worm and gear. It is crucial to mount a worm gear assembly correctly. The keyway design requires several points of contact, which block shaft rotation and help transfer torque to the gear. After determining the location of the keyway, a hole is drilled into the hub, which is then screwed into the gear.
The dual-threaded design of worm gears allows them to withstand heavy loads without slipping or tearing out of the worm. A double-throat worm gear provides the tightest connection between worm and gear, and is therefore ideal for hoisting applications. The self-locking nature of the worm gear is another advantage. If the worm gears are designed well, they are excellent for reducing speeds, as they are self-locking.
When choosing a worm, the number of threads that a worm has is critical. Thread starts determine the reduction ratio of a pair, so the higher the threads, the greater the ratio. The same is true for the worm helix angles, which can be one, two, or three threads long. This varies between a single thread and a double-throat worm gear, and it is crucial to consider the helix angle when selecting a worm.
Double-throat worm gears differ in their profile from the actual gear. Double-throat worm gears are especially useful in applications where noise is an issue. In addition to their low noise, worm gears can absorb shock loads. A double-throat worm gear is also a popular choice for many different types of applications. These gears are also commonly used for hoisting equipment. Its tooth profile is different from that of the actual gear.
worm shaft

Bronze or aluminum worm shafts

When selecting a worm, a few things should be kept in mind. The material of the shaft should be either bronze or aluminum. The worm itself is the primary component, but there are also addendum gears that are available. The total number of teeth on both the worm and the addendum gear should be greater than forty. The axial pitch of the worm needs to match the circular pitch of the larger gear.
The most common material used for worm gears is bronze because of its desirable mechanical properties. Bronze is a broad term referring to various copper alloys, including copper-nickel and copper-aluminum. Bronze is most commonly created by alloying copper with tin and aluminum. In some cases, this combination creates brass, which is a similar metal to bronze. The latter is less expensive and suitable for light loads.
There are many benefits to bronze worm gears. They are strong and durable, and they offer excellent wear-resistance. In contrast to steel worms, bronze worm gears are quieter than their counterparts. They also require no lubrication and are corrosion-resistant. Bronze worms are popular with small, light-weight machines, as they are easy to maintain. You can read more about worm gears in CZPT’s CZPT.
Although bronze or aluminum worm shafts are the most common, both materials are equally suitable for a variety of applications. A bronze shaft is often called bronze but may actually be brass. Historically, worm gears were made of SAE 65 gear bronze. However, newer materials have been introduced. SAE 65 gear bronze (UNS C90700) remains the preferred material. For high-volume applications, the material savings can be considerable.
Both types of worms are essentially the same in size and shape, but the lead on the left and right tooth surfaces can vary. This allows for precise adjustment of the backlash on a worm without changing the center distance between the worm gear. The different sizes of worms also make them easier to manufacture and maintain. But if you want an especially small worm for an industrial application, you should consider bronze or aluminum.

Calculation of worm shaft deflection

The centre-line distance of a worm gear and the number of worm teeth play a crucial role in the deflection of the rotor. These parameters should be entered into the tool in the same units as the main calculation. The selected variant is then transferred to the main calculation. The deflection of the worm gear can be calculated from the angle at which the worm teeth shrink. The following calculation is helpful for designing a worm gear.
Worm gears are widely used in industrial applications due to their high transmittable torques and large gear ratios. Their hard/soft material combination makes them ideally suited for a wide range of applications. The worm shaft is typically made of case-hardened steel, and the worm wheel is fabricated from a copper-tin-bronze alloy. In most cases, the wheel is the area of contact with the gear. Worm gears also have a low deflection, as high shaft deflection can affect the transmission accuracy and increase wear.
Another method for determining worm shaft deflection is to use the tooth-dependent bending stiffness of a worm gear’s toothing. By calculating the stiffness of the individual sections of a worm shaft, the stiffness of the entire worm can be determined. The approximate tooth area is shown in figure 5.
Another way to calculate worm shaft deflection is by using the FEM method. The simulation tool uses an analytical model of the worm gear shaft to determine the deflection of the worm. It is based on a two-dimensional model, which is more suitable for simulation. Then, you need to input the worm gear’s pitch angle and the toothing to calculate the maximum deflection.
worm shaft

Lubrication of worm shafts

In order to protect the gears, worm drives require lubricants that offer excellent anti-wear protection, high oxidation resistance, and low friction. While mineral oil lubricants are widely used, synthetic base oils have better performance characteristics and lower operating temperatures. The Arrhenius Rate Rule states that chemical reactions double every ten degrees C. Synthetic lubricants are the best choice for these applications.
Synthetics and compounded mineral oils are the most popular lubricants for worm gears. These oils are formulated with mineral basestock and four to six percent synthetic fatty acid. Surface-active additives give compounded gear oils outstanding lubricity and prevent sliding wear. These oils are suited for high-speed applications, including worm gears. However, synthetic oil has the disadvantage of being incompatible with polycarbonate and some paints.
Synthetic lubricants are expensive, but they can increase worm gear efficiency and operating life. Synthetic lubricants typically fall into two categories: PAO synthetic oils and EP synthetic oils. The latter has a higher viscosity index and can be used at a range of temperatures. Synthetic lubricants often contain anti-wear additives and EP (anti-wear).
Worm gears are frequently mounted over or under the gearbox. The proper lubrication is essential to ensure the correct mounting and operation. Oftentimes, inadequate lubrication can cause the unit to fail sooner than expected. Because of this, a technician may not make a connection between the lack of lube and the failure of the unit. It is important to follow the manufacturer’s recommendations and use high-quality lubricant for your gearbox.
Worm drives reduce backlash by minimizing the play between gear teeth. Backlash can cause damage if unbalanced forces are introduced. Worm drives are lightweight and durable because they have minimal moving parts. In addition, worm drives are low-noise and vibration. In addition, their sliding motion scrapes away excess lubricant. The constant sliding action generates a high amount of heat, which is why superior lubrication is critical.
Oils with a high film strength and excellent adhesion are ideal for lubrication of worm gears. Some of these oils contain sulfur, which can etch a bronze gear. In order to avoid this, it is imperative to use a lubricant that has high film strength and prevents asperities from welding. The ideal lubricant for worm gears is one that provides excellent film strength and does not contain sulfur.

China Best Sales 3 4 6 Axis Machining Crankshaft for Motorcycle Racing Worm Gear Step Long Spindle Motor Eccentric Grinding Connecting CNC Shaft  with Free Design CustomChina Best Sales 3 4 6 Axis Machining Crankshaft for Motorcycle Racing Worm Gear Step Long Spindle Motor Eccentric Grinding Connecting CNC Shaft  with Free Design Custom

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we are confident to offer our customers flexible and diversified companies. Much more importantly, we make special components according to equipped drawings/samples and warmly welcome OEM inquiries. The item properly displays environmental defense and power conserving.
1. Description

Item name

304 stainless metal shaft


Stainless Steel,EPTT,Brass, Bronze,EPTT metal and ect. environmental defense materials.


EPTT in accordance to your drawing.


OEM, design and style, EPT


/-.01mm to /-.005mm

Area treatment method




*Sand blasting

*Electroplating(colour, blue, white, black zinc, Ni, Cr, tin, copper, silver)

*Black oXiHu (West EPT) Dis.de coating


*Very hot-dip galvanizing

*Rust preventive oil


one piece Copper bushing


We can make sample within 7daEPTTfree of demand


ISO9001:2015 cnc machining turning parts shaft

Payment Terms

Financial institution TransferWestern EPT Paypal Payoneer, Alibaba EPT Assurance30% deposit amp balance prior to delivery.

Shipping time

In fifteen-20 workdaEPTTafter deposit or payment EPTd

EPT Port

HangEPT 304 stainless metal shaft

2. Principal EPT Shafts

three. Operate Circulation

four. Application

five. About US

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Best best made in China – replacement parts – PTO shaft manufacturer & factory Nontelescopic pto shaft locking mechanism Long Cardan Shaft with ce certificate top quality low price

We – EPG Group the biggest agricultural gearbox and pto manufacturing facility in China with 5 distinct branches. For far more specifics: Cellular/whatsapp/telegram/Kakao us at: 0086-13083988828

Best  best  made in China - replacement parts - PTO shaft manufacturer & factory Nontelescopic   pto shaft locking mechanism Long Cardan Shaft with ce certificate top quality low price

tractor offer pto put up gap digger EPG 2006 jeep commander entrance drive shaft Equipment jku driveshaft is tractor source pto universal joint situated 2005 bmw x3 rear push shaft in pto shaft size list XiHu king kutter slip clutch Spot pto link kinds HangZhou 2015 polaris ranger 900 xp prop shaft Zhejiang carbon fiber driveshaft mustang ,China. It is 30km from our manufacturing facility to HangZhou worldwide airport. Our items is common exported to the United States, Germany, Australia, Russia, Spain, Hungary, Zimbabwe, Ukraine, Nigeria, Peru, Brazil, Middle and South The usa, Thailand, Pakistan, Indonesia, a lot more than 60 countries and areas.

SWP D Type Cardan Shaft(JB/T3241-1991)

Cardan shaft is broadly utilized in rolling mill, punch, straightener, crusher, ship push,paper generating products, common equipment, drinking water pump products,check bench and other mechanical apps.

·Mark illustration:
 Tactical diameter D=225mm,Set up size L=463mm,D type cardan shaft
 SWP225D×463 Coupling JB/T3241-91

·SWP D Cardan Shaft Simple Parameter And Principal Dimension(JB/T3241-1991)

Type Tactical diameter
Nominal torque
Fatique torque Tf
Measurement(mm) Rotary
Lmin Done
D3 E Eone B×h hone L1 n-d Lmin Increase 
one hundred
Lmin Enhance
one hundred
SWP160D 160 16 eight ≤10 340 one hundred forty 95 114 fifteen four 20×12 six 85 six-13 .09 .0056 35 2.1
SWP180D 180 twenty ten ≤10 380 155 one hundred and five 121 fifteen four 24×14 seven 95 six-15 .16 .0072 47 two.3
SWP200D 200 31.5 16 ≤10 440 one hundred seventy five 125 127 seventeen five 28×16 eight 110 eight-15 .28 .0114 sixty seven 3.four
SWP225D 225 forty 20 ≤10 520 196 a hundred thirty five 152 twenty 5 32×18 nine one hundred thirty eight-seventeen .fifty three .5710 ninety four six.6
SWP250D 250 63 31.five ≤10 540 218 a hundred and fifty 168 25 5 40×25 twelve.5 135 eight-19 .91 .0407 140 seven.three
SWP285D 285 ninety 45 ≤10 600 245 one hundred seventy 194 27 seven 40×30 fifteen 150 eight-21 1.91 .0702 206 9.4
SWP315D 315 140 63 ≤10 680 280 185 219 32 7 40×30 fifteen one hundred seventy ten-23 3.39 .1144 271 12.
SWP350D 350 one hundred eighty ninety ≤10 740 310 210 245 35 8 50×32 sixteen 185 ten-23 five.35 .1663 355 13.six
SWP390D 390 250 112 ≤10 820 345 235 273 forty 8 70×36 eighteen 205 ten-25 10.fifty four .2695 501 eighteen.
SWP435D 435 355 a hundred and sixty ≤10 940 385 255 299 42 10 80×40 20 235 16-28 18.fifty six .3645 825 twenty.
SWP480D 480 450 224 ≤10 1060 425 275 351 forty seven 12 90×45 22.five 265 16-31 31.69 .7571 1144 28.
SWP550D 550 710 315 ≤10 1160 492 320 402 50 twelve 100×45 22.5 290 16-31 fifty one.forty five 1.1842 1589 35.seven
SWP600D 600 1000 five hundred ≤10 1440 544 380 450 55 15 90×55 27.five 360 22-34 eighty three.fifty three one.7159 2243 40.5
SWP640D 640 1250 630 ≤10 1540 575 385 480 60 fifteen 100×60 thirty 385 eighteen-38 135.60 2.3080 3140 48.three

·Be aware:L is the duration of set up,such as the worth of S/Z shrinkage.

♦Product Present

♦ EPT Cardan Common Shaft Characteristics
one. We supply in excess of one thousand diverse spare elements for a wide range of agricultural equipment, from EPT harvesters, mowers,rakes to balers.They are used for numerous makes like John Deere, LAVERDA ,Claas, New Holland and Situation/IH. 

2.Elastomer connecting in the center

3.Can take in vibration, compensates for radial, axial and angular deviation

4.Oil resistance and electrical insulation

five.Have the identical attribute of clockwise and anticlockwise rotation

♦Other Items Listing

Transmission Machinery 
Elements Identify
Universal Coupling WS,WSD,WSP
Cardan Shaft SWC,SWP,SWZ
Tooth Coupling CL,CLZ,GCLD,GIICL,
High Flexible Coupling LM
Chain Coupling GL
Jaw Coupling LT
Grid Coupling JS

♦Our Firm
Our organization materials distinct types of goods. Substantial high quality and realistic price. We stick to the principle of “top quality first, services initial, ongoing improvement and innovation to meet the customers” for the administration and “zero defect, zero issues” as the top quality goal. To EPT our support, we provide the products with very good good quality at the reasonable price.

Welcome to customize items from our factory and you should give your style drawings or contact us if you need to have other needs.

♦Our Solutions
one.Style Companies
Our design team has encounter in cardan shaft relating to merchandise design and development. If you have any wants for your new item or would like to make more improvements, we are listed here to provide our support.

2.Product Solutions
uncooked materia EPT → Cutting → Forging →Rough machining →Shot blasting →Heat therapy →Testing →Fashioning →Cleaning→ Assembly→Packing→Shipping

3.Samples Procedure
We could produce the sample according to your requirement and amend the sample continually to fulfill your need.

four.Study & Development
We generally investigation the new requirements of the market and build the new design when there is new automobiles in the market place.

five.Good quality Handle
Every single phase must be EPT take a look at by Expert Workers in accordance to the stHangZhourd of ISO9001 and TS16949.

Q 1: Are you investing company or maker?
A: We are a professional maker specializing in production
various sequence of couplings.

Q 2:Can you do OEM?
Indeed, we can. We can do OEM & ODM for all the clients with customized artworks of PDF or AI format.

Q 3:How prolonged is your shipping and delivery time?
Usually it is 20-30 times if the products are not in stock. It is in accordance to amount.

Q 4: Do you offer samples ? Is it free of charge or further ?
Sure, we could offer you the sample but not for free of charge.Really we have a very good value theory, when you make the bulk order then value of sample will be deducted.

Q 5: How extended is your warranty?
A: Our Guarantee is twelve thirty day period beneath standard circumstance. 

Q 6: What is the MOQ?
A:Normally our MOQ is 1pcs.

Q 7: Do you have inspection processes for coupling ?
A:a hundred% self-inspection prior to packing.

Q 8: Can I have a visit to your manufacturing facility before the order? 
A: Positive,welcome to check out our factory.

Q 9: What’s your payment?
A:1) T/T. 2) L/C 

Contact Us
Incorporate: No.1 HangZhou Road,Chengnan park,HangZhou Town,ZheJiang Province,China

Best  best  made in China - replacement parts - PTO shaft manufacturer & factory Nontelescopic   pto shaft locking mechanism Long Cardan Shaft with ce certificate top quality low price