Tag Archives: t5 timing pulley

China T2.5 T5 T10 At5 At10 Timing Belt Pulley pulley design

Solution Description

CZPT Machinery offers a vast variety of high high quality Timing Belt Pulleys and Toothed Bars/ Timing Bars. Regular and non-standard pulleys in accordance to drawings are available .

 
Sorts of materials:
  1. AlCuMgPb 6061 6082 Aluminum Timing Pulley
  2. C45E 1045 S45C Carbon Steel Timing Pulley
  3. GG25 HT250 Cast Iron Timing Pulley
  4. SUS303 SUS304 AISI431 Stainless Metal Timing Pulley
  5. Other content on demand, such as cooper,  bronze and plastic
 
Sorts of surface area treatment
 1.  Anodized surface area -Aluminum Pulleys
 2.  Hard anodized surface — Aluminum Pulleys
 3.  Black Oxidized area — Steel Pulleys
 4. Zinc plated area — Steel Pulleys
 5. Chromate floor — Steel Pulleys Forged Iron Pulleys
 6. Nickel plated area –Metal Pulleys Cast Iron Pulleys
 
Varieties of tooth profile

Teeth Profile Pitch
HTD 3M,5M,8M,14M,20M
AT AT5,AT10,AT20
T T2.5,T5,T10
MXL .08″(2.032MM)
XL 1/5″(5.08MM)
L three/8″(9.525MM)
H one/2″(12.7MM)
XH 7/8″(22.225MM)
XXH 1 1/4″(31.75MM)
STS STPD S2M,S3M,S4.5M,S5M,S8M,S14M
RPP RPP5M,RPP8M,RPP14M,RPP20M
PGGT PGGT  2GT, 3GT and 5GT
PCGT GT8M,GT14M

 
Kinds of pitches and dimensions

Imperial Inch Timing Belt Pulley,
one.     Pilot Bore MXL571 for 6.35mm timing belt tooth quantity from 16 to seventy two
2.  Pilot Bore XL037 for 9.53mm timing belt teeth number from ten to 72
3.  Pilot Bore, Taper Bore L050 for twelve.7mm timing belt enamel number from 10 to a hundred and twenty
4.  Pilot Bore, Taper Bore L075 for 19.05mm timing belt teeth quantity from 10 to a hundred and twenty
5.  Pilot Bore, Taper Bore L100 for 25.4mm timing belt tooth variety from ten to a hundred and twenty
six.  Pilot Bore, Taper Bore H075 for 19.05mm timing belt teeth number from 14 to 50
seven.  Pilot Bore, Taper Bore H100 for 25.4mm timing belt teeth quantity from 14 to 156
8.  Pilot Bore, Taper Bore H150 for 38.1mm timing belt tooth quantity from fourteen to 156
9.  Pilot Bore, Taper Bore H200 for fifty.8mm timing belt tooth amount from 14 to 156
ten.  Pilot Bore, Taper Bore H300 for seventy six.2mm timing belt enamel variety from fourteen to 156
11.  Taper Bore XH200 for fifty.8mm timing belt teeth quantity from 18 to 120
12.  Taper Bore XH300 for seventy six.2mm timing belt enamel number from eighteen to 120
thirteen.  Taper Bore XH400 for 101.6mm timing belt enamel variety from eighteen to 120

Metric Timing Belt Pulley T and AT
1.  Pilot Bore T2.5-16 for 6mm timing belt tooth quantity from twelve to 60 
2.   Pilot Bore T5-21 for 10mm timing belt teeth quantity from 10 to 60 
three.   Pilot Bore T5-27 for 16mm timing belt tooth quantity from ten to 60 
4.   Pilot Bore T5-36 for 25mm timing belt teeth amount from 10 to 60 
5.   Pilot Bore T10-31 for 16mm timing belt enamel number from 12 to 60 
6.   Pilot Bore T10-40 for 25mm timing belt teeth quantity from 12 to 60 
seven.   Pilot Bore T10-47 for 32mm timing belt teeth amount from eighteen to 60 
8.   Pilot Bore T10-66 for 50mm timing belt teeth amount from eighteen to sixty
9.  Pilot Bore AT5-21 for 10mm timing belt enamel amount from 12 to sixty
10. Pilot Bore AT5-27 for 16mm timing belt teeth quantity from twelve to sixty
11. Pilot Bore AT5-36 for 25mm timing belt tooth quantity from 12 to 60 
twelve. Pilot Bore AT10-31 for 16mm timing belt tooth number from 15 to 60 
thirteen. Pilot Bore AT10-40 for 25mm timing belt tooth quantity from fifteen to 60 
fourteen. Pilot Bore AT10-47 for 32mm timing belt teeth amount from eighteen to 60 
fifteen. Pilot Bore AT10-66 for 50mm timing belt teeth number from 18 to sixty
  
Metric Timing Belt Pulley HTD3M, 5M, 8M, 14M 
1.  HTD3M-06 3M-09 3M-fifteen tooth amount from 10 to 72 
2.  HTD5M-09 5M-fifteen 5M-25 teeth quantity from twelve to 72 
three.  HTD8M-20 8M-thirty 8M-fifty 8M-eighty five tooth number from 22 to 192 
4.  HTD14M-forty 14M-55 14M-85 14M-115 14M-170 tooth amount from 28-216 
five.  Taper Bore HTD5M-15 8M-20 8M-30 8M-50 8M-85 14M-40 14M-fifty five 14M-85
         14M-115 14M-a hundred and seventy

Metric Timing Belt Pulleys for Poly Chain GT2 Belts 
one.      PCGT8M-12 PCGT8M-21 PCGT8M-36 PCGT8M-62 
two.      PCGT14M-20 PCGT14M-37 PCGT14M-68 PCGT14M-ninety PCGT14M-125

Energy Grip CZPT Tooth/ PGGT 2GT, 3GT and 5GT 
one. 2GT-06, 2GT-09 for timing belt width 6mm and 9mm 
two. 3GT-09, 3GT-fifteen for timing belt width 9mm and 15mm 
three. 5GT-15, 5GT-25 for timing belt width 15mm and 25mm

OMEGA RPP HTD Timing Pulleys 
one.   RPP3M-06 3M-09 3M-fifteen teeth quantity from 10 to 72 
two.   RPP5M-09 5M-fifteen 5M-twenty five tooth quantity from twelve to 72 
three.   RPP8M-20 8M-30 8M-50 8M-85 enamel amount from 22 to 192 
4.   RPP14M-40 14M-fifty five 14M-eighty five 14M-one hundred fifteen 14M-a hundred and seventy tooth variety from 28-216 
5.  Taper Bore RPP5M-15 8M-20 8M-thirty 8M-50 8M-85 14M-forty 14M-55 14M-85
     14M-115 14M-a hundred and seventy

US $1.2
/ Piece
|
1 Piece

(Min. Order)

###

Certification: ISO
Pulley Sizes: Timing
Manufacturing Process: Sawing
Material: Aluminum 6082
Surface Treatment: Zinc Coating
Application: Chemical Industry, Grain Transport, Mining Transport, Power Plant

###

Samples:
US$ 3/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Teeth Profile Pitch
HTD 3M,5M,8M,14M,20M
AT AT5,AT10,AT20
T T2.5,T5,T10
MXL 0.08"(2.032MM)
XL 1/5"(5.08MM)
L 3/8"(9.525MM)
H 1/2"(12.7MM)
XH 7/8"(22.225MM)
XXH 1 1/4"(31.75MM)
STS STPD S2M,S3M,S4.5M,S5M,S8M,S14M
RPP RPP5M,RPP8M,RPP14M,RPP20M
PGGT PGGT  2GT, 3GT and 5GT
PCGT GT8M,GT14M
US $1.2
/ Piece
|
1 Piece

(Min. Order)

###

Certification: ISO
Pulley Sizes: Timing
Manufacturing Process: Sawing
Material: Aluminum 6082
Surface Treatment: Zinc Coating
Application: Chemical Industry, Grain Transport, Mining Transport, Power Plant

###

Samples:
US$ 3/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Teeth Profile Pitch
HTD 3M,5M,8M,14M,20M
AT AT5,AT10,AT20
T T2.5,T5,T10
MXL 0.08"(2.032MM)
XL 1/5"(5.08MM)
L 3/8"(9.525MM)
H 1/2"(12.7MM)
XH 7/8"(22.225MM)
XXH 1 1/4"(31.75MM)
STS STPD S2M,S3M,S4.5M,S5M,S8M,S14M
RPP RPP5M,RPP8M,RPP14M,RPP20M
PGGT PGGT  2GT, 3GT and 5GT
PCGT GT8M,GT14M

Calculate the ideal mechanical advantage of pulleys

The basic equations for pulleys can be found in this article. It will also cover the different types of pulleys, the ideal mechanical advantages of pulleys, and some common uses of pulley systems. Read on to learn more! After all, a pulley is a simple mechanical device that changes the direction of a force. Learn more about pulleys and their common uses in engineering.
pulley

pulley basic equation

Pulleys work the same way as gravity, so they should withstand similar forces. Newton’s laws of motion can be used to calculate the forces in a pulley system. The second law of motion applies to forces and accelerations. Similar to this is Newton’s third law, which states that the directions of forces are equal and opposite. The fourth law dictates the direction of force. The Fifth Law states that tension is in equilibrium with gravity.
A pulley is a simple mechanism that transmits force by changing direction. They are generally considered to have negligible mass and friction, but this is only an approximation. Pulleys have different uses, from sailboats to farms and large construction cranes. In fact, they are the most versatile mechanisms in any system. Some of their most common applications and equations are listed below.
For example, consider two masses m. Those of mass m will be connected by pulleys. The static friction coefficient of the left stop is ms1, and the static friction coefficient of the right stop is ms2. A no-slip equation will contain multiple inequalities. If the two blocks are considered to be connected by a pulley, the coefficient of kinetic friction is mk. In other words, the weight of each block carries the same mass, but in the opposite direction.

Types of pulleys

A pulley is a device used to pull and push objects. Pulley systems are ropes, cables, belts or chains. The “drive pulley” is attached to the shaft and moves the driven pulley. They are available in a variety of sizes, and the larger they are, the higher the speed of power transmission. Alternatively, use small pulleys for smaller applications.
Two-wheel pulleys have two mechanical advantages. The greater the mechanical advantage, the less force is required to move the object. More wheels lift more weight, but smaller pulleys require less force. In a two-wheel pulley system, the rope is wound around two axles and a fixed surface. As you pull on the rope, the shafts above slowly come together.
Compound pulleys have two or more rope segments that are pulled up on the load. The mechanical advantage of compound pulleys depends on the number of rope segments and how they are arranged. This type of pulley can increase the force by changing the direction of the rope segment. There are two main types of pulleys. Composite pulleys are most commonly used in construction. The ideal mechanical advantage of pulleys is 2 or more.
Construction pulleys are a basic type. They are usually attached to wheel rails and can be lifted to great heights. Combinations of axes are also common. Construction pulleys can be raised to great heights to access materials or equipment. When used in construction, these pulleys are usually made of heavy materials such as wood or metal. They are secured with ropes or chains.

The ideal mechanical advantage of pulleys

The pulley system is a highly complex system with high mechanical advantages. Use a single pulley system to reduce the force required to lift an object by cutting it in half. The mechanical advantage increases as you add more pulleys, such as six or seven. To calculate the mechanical advantage of a pulley system, you need to count the number of rope segments between the pulleys. If the free end of the rope is facing down, don’t count it. If it’s facing up, count. Once you have your number, add it up.
The required mechanical advantage of a pulley is the number of rope segments it has to pull the load. The more rope segments, the lower the force. Therefore, the more rope segments the pulley has, the lower the force. If the rope segments are four, then the ideal mechanical advantage is four. In this case, the composite pulley quadrupled the load force.
The ideal mechanical advantage of a pulley system is the sum of the mechanical force and the force required to lift the load at its output. Typically, a single pulley system uses two ropes, and the mechanical force required to lift the load is multiplied by the two ropes. For a multi-pulley system, the number of ropes will vary, but the total energy requirement will remain the same. The friction between the rope and pulley increases the force and energy required to lift the load, so the mechanical advantage diminishes over time.
pulley

Common uses of pulley systems

A pulley system is a simple mechanical device typically used to lift heavy objects. It consists of a rotating wheel attached to a fixed shaft and a rope attached to it. When the wheel moves, the force applied by the operator is multiplied by the speed of the pulley, and the force is multiplied by the weight of the object being lifted. Common uses for pulley systems include pulling, lifting, and moving heavy objects.
The oil and petroleum industries use pulley systems in a variety of applications. Most commonly, pulleys are used in drilling operations and they are installed on top of the rig to guide the cable. The cable itself is attached to two pulleys suspended in the derrick, where they provide mechanical energy to the cable. Using a pulley system in this application provides the force needed to move the cable safely and smoothly.
The main advantage of the pulley system is that it minimizes the force required to lift an object. The force used to lift the object is multiplied by the desired mechanical advantage. The more rope segments, the lower the force required. On the other hand, a compound pulley system can have many segments. Therefore, a compound pulley system can increase the force a worker can exert on an object.
Safety Precautions to Take When Working on Pulley Systems

There are many safety precautions that should be observed when working on a pulley system. The first is to wear proper protective gear. This includes hard hats that protect you from falling objects. Also, gloves may be required. You should limit the amount of movement in the penalty area, and you should also keep the area free of unnecessary people and objects. Also, remember to wear a hard hat when working on the pulley system.
Another important safety precaution when working on a pulley system is to check the Safe Working Load (SWL) of the pulley before attaching anything. This will help you understand the maximum weight the pulley can hold. Also, consider the angle and height of the pulley system. Always use safety anchors and always remember to wear a hat when working on a pulley system.
Safe use of chain hoists requires training and experience. It is important to read the manufacturer’s manual and follow all safety precautions. If you’re not sure, you can actually inspect the hoist and look for signs of damage or tampering. Look for certifications for sprocket sets and other lifting accessories. Look for the Safe Working Load (SWL) marking on the chain hoist.
pulley

Example of a pulley system

Pulley systems are often used to lift items. It allows you to reduce the effort to lift and move the load by applying force in one direction. Pulley systems can be built and modeled to fit any type of project. This resource focuses on pulley systems and is designed to support the new GCSEs in Engineering, Design and Technology. There are also many examples of pulley systems suitable for various applications.
In the study, participants who read easy text took longer to manipulate the pulley system than those who read challenging text. In general, this suggests that participants with prior scientific experience used their cognitive abilities more effectively. Additionally, students who read simple texts spent less time planning the pulley system and more time on other tasks. However, the study did show that the time required to plan the pulley system was similar between the two groups.
In everyday life, pulley systems are used to lift various objects. Flagpoles are one of many pulley systems used to raise and lower flagpoles. They can also be used to raise and lower garage doors. Likewise, rock climbers use pulleys to help them ascend and descend. The pulley system can also be used to extend the ladder.

China T2.5 T5 T10 At5 At10 Timing Belt Pulley     pulley design	China T2.5 T5 T10 At5 At10 Timing Belt Pulley     pulley design
editor by czh 2022-12-16

China Professional Stainless Steel Timing Pulley XL L H S2m S5m T5 T10 High Precision Synchronous Belt Pulleys for Packaging Industry near me factory

Product Description

Stainless Steel Timing Pulley XL L H S2M S5M T5 T10 High Precision Synchronous Belt Pulleys  For Packaging Industry
 

Product Parameters

Product Timing Belt Pulley & idler pulley
Teeth type Normal Torque Drive Type:MXL,XL,L,H,XH,XXH
High Torque Drive Type:S2M,S3M,S5M,S8M,HTD2M,HTD3M,HTD5M,HTD8M,P2M,P3M,P5M,P8M
High Precision Position Drive Type:2GT,3GT,5GT,8YU
Light Load Drive Type:T5,T10,T20
Heavy Load Drive Type:AT5,AT10,AT20
Basic shape Type A,Type B,Type D,Type E,Type F,Type K
surface treatment Natural color anodizing,Black anodizing,Hard anodizing,Ni-plating,Blackening
Material 6061(aluminum),S45C(45# steel),SUS304(Stainless steel)
Bore Pilot bore, Taper bore and Customized bore.
testing equipment projecting apparatus,salt spray test,durometer,and coating thickness tester,2D projector
producing  equipment CNC machine,automatic lathe machine,stamping machine,CNC milling machine,rolling machine,lasering,tag grinding machine etc.
Machining Process Gear Hobbing, Gear Milling, Gear Shaping, Gear Broaching,Gear Shaving, Gear Grinding and Gear Lapping
Application industry Robot industry,Medical industry,Making machine industry,Automation industry,3C industry equipment,Packaging industry,UAV industry,New energy industry.
Advantages 1.High temperature resistance,Self lubrication,Wear resistance,Flame retardant properties
2.Good quality products
3.Competitive prices
4.Fast delivery
5.Best after-sale service
6.Brand: HeFa or OEM/ ODM
7.Good service:satisfactory service before and after sale.
8.Direct manufacturers

 

Machining Process

Related Products

 

Company Profile

HangZhou CZPT Machinery Co.,LTD established in 2009, is a professional manufacture engaged in development, production, sales and service of timing pulley, precise spur gears, helical gears, bevel gear, worm& worm gear and so on. We located in HangZhou with convenient transposition excite. CZPT Machinery dedicated to strict quality control and thoughtful customer service. Our experienced staffs are always available to discuss your requirements, and fulfill your satisfaction.

Packaging & Shipping

Packaging Details: standard exporting package

Delivery Detail: 30days after received the prepayment

FAQ

Main Markets North America, South America, Eastern Europe , West Europe , North Europe, South Europe, Asia
How to order * You send us drawing or sample
* We carry through project assessment
* We give you our design for your confirmation
* We make the sample and send it to you after you confirmed our design
* You confirm the sample then place an order and pay us 30% deposit
* We start producing
* When the goods is done, you pay us the balance after you confirmed pictures or tracking numbers.
* Trade is done, thank you!

How to Prevent Timing Belt Problems

Unlike their predecessors, timing chains and timing belts are made of rubber and synchronize the opening and closing of valves in the engine. While their benefits are numerous, they are prone to wear and tear over time. Here are some tips for ensuring your timing belt lasts for many years. Listed below are some of the most common problems that you may encounter when changing your timing belt. Read on to find out how to prevent them and keep your car running at peak performance.
belt

Timing belts are rubber

There are many advantages to using timing belts in your car. They are lightweight and reduce the strain on your vehicle’s internal components. They are also quiet when running, so you won’t have to listen to your car to know that maintenance is needed. If you’re concerned about noise, a quiet engine can help you determine whether your timing belts are broken or if you need to replace them altogether. A quiet engine can also help you notice signs of wear and tear before you do.
Regardless of material, rubber timing belts can be susceptible to stretching and breaking. They also are susceptible to high temperatures and the lubrication of motor oil, reducing their lifespan. Manufacturers have responded to this problem by creating timing belts made of engine-temperature-resistant rubber materials. The improved rubber compounds also provide greater strength and resistance to distortion. Reinforcing fibers also protect the teeth from shearing, reducing the risk of a worn-out timing belt.
While the open-ended, or spliced, types of timing belts have many advantages, they are generally unsuitable for high-speed applications. In most cases, rubber timing belts are used in high-speed machine tools and automatic doors. They are also quiet and require minimal maintenance. These characteristics make rubber timing belts a great choice for high-speed applications. You can even order custom-made timing belts for unusual applications.
Timing belts are important for the functioning of an engine. They link the camshaft and crankshaft to the crankshaft. They control the movement of valves and pistons. If a timing belt fails, it can cause major damage to the engine. If you are unsure of the benefits of rubber timing belts, consider a video on the topic. This will provide you with more information on timing belts.

They synchronize the opening and closing of the engine’s valves

During the combustion process of the engine, the valves in the cylinder head open and close. Fresh air enters the cylinder, which burns with the fuel to generate power. Exhaust escapes the engine through the exhaust valve. Each cylinder contains between 2 and 4 valves. The timing belt drives a camshaft, which rotates in a precise manner to synchronize the valve opening and closing.
A timing belt is a toothed rubber belt that connects the engine’s crankshaft to the crankshaft. Like most rubber parts, timing belts degrade over time, so it’s important to replace them at the proper intervals. Replacement intervals vary depending on the make and model of the vehicle, but they should be replaced every 60 to 90 thousand miles.
A broken timing belt will not start the engine. A timing belt driven vehicle will need to be towed to a repair shop for repairs. In the automotive industry, timing belts drive both “free running” and “interference” engines. The timing belt transfers the crankshaft’s rotation to the camshafts, which in turn actuate the valves in the intake and exhaust system. When they malfunction, the pistons can contact open valves, bending or punching them.
Timing belts also work with pistons and connecting rods to create power. Perfect timing is essential for the engine to run smoothly. The timing belt regulates both the pistons and the valves. If they are out of sync, they may not ignite properly, leading to catastrophic engine failure. When you’re looking for a replacement, look for these signs of wear.
belt

They are lighter, quieter and more efficient than timing chains

While the initial choice was for quieter performance, variable timing has led to greater efficiency and power. While noise is a factor, the average consumer cannot tell the difference. And while timing belts are generally lighter and quieter, a chain can be more noisy than a belt, which can cause more engine damage. If you’re unsure whether you should opt for a chain or a belt, consult your owner’s manual.
A timing chain functions similar to a timing belt but is made from metal and is housed inside the engine compartment. It receives its lubrication from engine oil. Timing chains can last a long time as long as you keep them properly maintained. A timing chain is not as efficient as a timing belt, but it is more accurate, quieter and easier to maintain.
A timing belt uses teeth to time the movement of various components in an engine. When the timing belt is broken, the valves in the engine will not be in sync, leading to a loss of pressure in the combustion chamber. This can cause a plethora of engine problems and cost-increasing repairs. A timing belt is also quieter and requires less lubrication, so it is safer and quieter than a timing chain.
After the advent of variable valve timing, cars began to use a timing chain. This design improved engine performance and reduced maintenance, but it also caused a backlash as consumers were no longer interested in this kind of routine maintenance. Today, however, timing chains are making a comeback in the automotive industry. While modern chains can still be noisy, they are easier to maintain, are lighter, and last longer than their chain counterparts.

They wear out over time

Even the best drive belts will eventually wear out. The main causes of belt wear include mileage and heat. The belt bends as it passes the pulley, producing heat that hardens the rubber. When the belt slips, it increases friction, accelerating the process. A worn-out belt can be very difficult to start, causing an engine to lose fuel efficiency. To help prevent this problem, check the belt for wear and tear.
A timing belt is an engine component that connects the camshaft to the crankshaft and controls the timing of combustion. These belts are made of industrial-strength rubber, and often contain nylon-reinforced cords. Although they are meant to last, they will eventually wear out. If the timing belt fails, your engine won’t run smoothly or you could spend thousands of dollars fixing it.
A faulty timing belt can cause the valves to open too early or too late, causing poor combustion and a drop in engine performance. If the timing belt breaks, the valves may hit the pistons and cause damage. This can lead to engine breakage, which requires a new engine. To prevent this, you should replace the timing belt every couple of thousand miles. If you can’t find a reliable mechanic, it is best to seek professional help from a reputable mechanic.
Another warning sign that your timing belt needs replacing is a ticking sound coming from within your engine. This is an indication of a lower oil pressure than normal. Low oil pressure can affect the timing belt as it can cause the tensioner that holds the belt taut will lose pressure. Eventually, the belt may even break, allowing the camshafts to slip and break. Once this happens, it is time to replace the timing belt.
belt

They can be repaired

Timing belts can be repaired. If your timing belt breaks, you can take your car to a repair shop to have it repaired or replaced. The price of a repair depends on the labor hours and how many hours it takes to do the job. A bad timing belt can ruin your engine and cause it to break down completely. If you’re unable to drive your vehicle, it may require towing and a new engine.
For most drivers, a timing belt replacement will cost about $1,000 at a dealership. Luckily, you can often get the same service for less at an independent auto repair shop. Often, a timing belt repair requires replacing the water pump, too. It makes sense to replace both at the same time. But remember that timing belts are more complicated than that. If you’re worried about the cost, you can replace the water pump along with the timing belt.
If you’re in the mood to do this repair, there are many companies that offer this service. The cost is relatively low and you’ll probably save hundreds of dollars over the course of the job. However, timing belt repair is not a simple job and must be done correctly or you could end up damaging your car engine. Therefore, it’s important to know how to repair a timing belt yourself to avoid the high price of hiring a mechanic.
When timing belts start to fail, there are a few warning signs you can listen for. A difficult start-up can be a sign that your belt needs to be replaced. Also, thick smoke coming from the tailpipe can be a sign that the timing belt needs to be changed. In addition to these symptoms, your timing belt may have a crack or broken gear teeth, which means it needs to be replaced.

China Professional Stainless Steel Timing Pulley XL L H S2m S5m T5 T10 High Precision Synchronous Belt Pulleys for Packaging Industry     near me factory China Professional Stainless Steel Timing Pulley XL L H S2m S5m T5 T10 High Precision Synchronous Belt Pulleys for Packaging Industry     near me factory