China best Aluminum Alloy Timing Belt Pulley for 70at20-8640 with high quality

Product Description

*Many kinds of rubber belts,free time to contact me please,thanks!

PU Flex Timing Belt/PU Truly Endless Timing Belt
*Polyurethane belt loop power,by a unique thermoset molding process.
*High-quality polyurethane material resistant to wear the belt and tear tesistant proper ties.
*One of the core wire to increase belt strength,tensile stregth,so that the belt has good dimensional stability.
*Polyurethane power ring with small tolerances,can guarantee the accuracy of thickness and length.
*All of the above features make the ployurethane ring has a higher power with the physical and chemical stability.
Polyurethane belt has the following properties:
*Mechanical properties                                                                *Chemical properties
 Positive fit,synchronous,running                                                   Resistant to aging,water solution,UVUVA,anti-ozne
 Constant length,no post-elongation                                              Working temperature:-30ºC-80ºC(short time could 
 Low noise                                                                                      withstand 110ºC)
 Wear resistant                                                                               Resistant against simple oils,fats and petrol
 Low-maintenance                                                                          Resistant to some acids
 Highly flexible
 Belt speeds up to 80m/s

This round PU timing belt especially             
suitable for low load synchronous transmission,
such as:office automation system and household appliances.

Related Belt

1.Ring belt from the continuous steel core and the thermoplastic polyurethane material,is a real no interface ring belt.
2.Ring belt to ensure the features and operation under high load,this power transmission belt for high-speed and high load transfer.
3.Ring belt length may be from 1.700 to 22.000 meters.
4.Ring belt can be customized according to customer's specifications of different models,such as:AT20,AT10,T10,T5,AT5,HTD8M,STD8M.....
*Ring belt special processing:
  1.Tooth surface and nylon fabric
  2.Can be rolled back a special pattern grinding and drilling
  3.can cover the back of the belt thicking
About opening belt
*Opening belt finished with a continuous length,the middle and the sides parallel to the wire core.Standard roll length is 50 or 100 meters.
*Open (PU) leather belt with a variety of different core option,such as kevlar core,highly flexible core(HF)high-performance(HP)and high toughness(HPF)
*Production tolerance of small reliable transmission and has a dimensional stability.The production process or in the teeth and tooth add a layer of nylon to ensure that applications running in the special characterstics of the same.Also thicker layer of polyurethane in the belt or the back of the red plastic to prevent corrosion or high load.

Model List
*Kinds of model to choose
MXL

Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth
26MXL 33 36MXL 45 37MXL 46 38MXL 48 41MXL 51 46MXL 58 53MXL 66 54MXL 67
55MXL 70 56MXL 71 57MXL 72 58MXL 73 59MXL 74 60MXL 75 61MXL 76 63MXL 79
64MXL 82 65MXL 83 71MXL 89 72MXL 90 73MXL 92 74MXL 93 75MXL 95 76MXL 96
77MXL 97 78MXL 98 80MXL 100 81MXL  102   82MXL 103 84MXL 105 85MXL 106 86MXL 107
87MXL 110 88MXL 112 89MXL 114 92MXL 115 93MXL 119 94MXL 120 95MXL 121 96MXL 122
97MXL 123 98MXL 124 99MXL 125 100MXL 126 101MXL 127 102MXL 128 105MXL 132 107MXL 134
109MXL 136 112MXL 140 114MXL 143 115MXL 144 116MXL 145 120MXL 150 122MXL 153 124MXL 155 
126MXL 157 128MXL 160 132MXL 165 140MXL 175 143MXL 179 144MXL 180 145MXL 181 148MXL 185
150MXL 187 151MXL 189 152MXL 190 153MXL 191 154MXL 192 155MXL 193 156MXL 195 160MXL 200
168MXL 210 184MXL 230 200MXL 250 204MXL 255 205MXL 256 208MXL 260 348MXL 435 400DMXL 500

T10 

Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth
T10*260 26 T10*300 30 T10*330 33 T10*370 37 T10*390 39 T10*400 40 T10*410 41 T10*440 44
T10*450 45 T10*460 46 T10*480 48 T10*500 50 T10*510 51 T10*530 53 T10*540 54 T10*550 55
T10*560 56 T10*600 60 T10*610 61 T10*620 62 T10*630 63 T10*650 65 T10*660 66 T10*680 68
T10*690 69 T10*700 70 T10*720 72 T10*730 73 T10*750 75 T10*780 78 T10*800 80 T10*810 81
T10*830 83 T10*840 84 T10*850 85 T10*860 86 T10*880 88 T10*890 89 T10*900 90 T10*910 91
T10*920 92 T10*950 95 T10*960 96 T10*970 97 T10*980 98 T10*1000 100 T10*1571 101 T10*1050 105
T10*1080 108 T10*1100 110 T10*1110 111 T10*1140 114 T10*1150 115 T10*1200 120 T10*1210 121 T10*1240 124
T10*1250 125 T10*1260 126 T10*1280 128 T10*1300 130 T10*1320 132 T10*1350 135 T10*1360 136 T10*1390 139
T10*1400 140 T10*1410 141 T10*1420 142 T10*1440 144 T10*1450 145 T10*1460 146 T10*1500 150 T10*1520 152
T10*1560 156 T10*1580 158 T10*1600 160 T10*1640 164 T10*1700 170 T10*1750 175 T10*1760 176 T10*1780 178
T10*1800 180 T10*1850 185 T10*1860 186 T10*1880 188 T10*1960 196 T10*1980 198 T10*2000 200 T10*2571 202
T10*2100 210 T10*2120 212 T10*2160 216 T10*2170 217 T10*2200 220 T10*2250 225 T10*2500 250 T10*2800 280

H

Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth
200H 40 225H 45 250H 50 260H 52 270H 54 280H 56 300H 60 315H 63 330H 66
350H 70 390H 78 420H 84 450H 90 460H 92 470H 94 480H 96 510H 102 540H 108
560H 112 570H 114 600H 120 630H 126 700H 140 750H 150 900H 180        

 T2.5

Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth
T2.5*120 48 T2.5*145 58 T2.5*160 64 T2.5*180 72 T2.5*182.5 73 T2.5*200 80 T2.5*215 86 T2.5*240 96
T2.5*245 98 T2.5*260 104 T2.5*285 114 T2.5*330 132 T2.5*380 152 T2.5*420 168 T2.5*500 200 T2.5*600 240
T2.5*650 260 T2.5*780 312 T2.5*950 380                    

AT5

Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth
AT5*375 75 AT5*390 78 AT5*455 91 AT5*490 98 AT5*500 100

AT10

Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth
AT10*500 50 AT10*600 60 AT10*660 66 AT10*700 70 AT10*730 73 AT10*780 78 AT10*800 800 AT10*840 84
AT10*920 92 AT10*960 96 AT10*980 98 AT10*1050 105 AT10*1080 108 AT10*1100 110 AT10*1150 115 AT10*1200 120
AT10*1210 121 AT10*1250 125 AT10*1280 128 AT10*1300 130 AT10*1350 135 AT1390 139 AT10*1400 140 AT10*1480 148
AT10*1600 160 AT10*1700 170 AT10*1860 186 AT10*1900 190                

S3M

Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth
S3M120 40 S3M144 48 S3M150 50 S3M183 61 S3M192 64 S3M201 67 S3M210 70 S3M231 77
S3M237 79 S3M246 82 S3M315 105 S3M357 119 S3M418 140 S3M420 140 S3M432 144 S3M453 151
S3M459 153 S3M486 162 S3M492 164 S3M504 168 S3M510 170 S3M513 171 S3M519 173 S3M525 175
S3M528 176 S3M537 179 S3M543 181 S3M546 182 S3M549 183 S3M555 185 S3M564 188 S3M571 191
S3M573 191 S3M585 195 S3M588 196 S3M600 200 S3M612 204 S3M705 235 S3M738 246 S3M780 260
A3M717 239 D3M327 109                        

HTD3M

Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth Spec. Teeth
3M135 45 3M144 48 3M171 57 3M174 58 3M177 59 3M189 63 3M195 65 3M207 69
3M225 75 3M228 76 3M243 81 3M255 85 3M264 88 3M276 92 3M288 96 3M294 98
3M300 100 3M312 104 3M315 105 3M324 108 3M336 112 3M345 115 3M357 119 3M360 120
3M366 122 3M375 125 3M384 128 3M402 134 3M420 140 3M423 141 3M435 145 3M456 152
3M459 153 3M462 154 3M468 156 3M471 157 3M483 161 3M486 162 3M495 165 3M504 168
3M510 170 3M522 174 3M525 175 3M537 179 3M540 180 3M549 183 3M555 185 3M564 188
3M573 191 3M606 202 3M657 219 3M669 223 3M693 231 3M699 233 3M708 236 3M720 240
3M738 246 3M879 293 3M1569 523 3M2040 680                

*We also have model :L/XL/XXL/T5/AT3/H/PK/PJ/PH/DMB/DT5/DR/PL/MB/DAT10/DT10/S2M/S5M/5M/HTD2M/HTD5M/HTD14M/HTD8M,or as your requirment to make new model but need to pay model cost,If you have no quantity,noted please!

Application 

About company
ZheJiang CZPT Transmission Equipment Co.,Ltd. 
Was established in March 2004,have 16 years of production experience.Local in No. 11, Lane 243, Jiugan Road, Sijing Town, Xihu (West Lake) Dis. District, ZheJiang ,China.Main deal in transmission belt and modular chain belt etc.production quantity more than 50000 pieces 1 year.all kinds of rubber material,pvc and pu material etc.accept specical making as your requirment. We support custom service.and delivery time most fastest 1day according  to your orders.Companies adhering to the "integrity,quality,price,and service first,continuous innovation" business philosophy,dedicated to provide high quality products and high-quality service for the customer,the company continutes to expand the scale of development,customers throughout the country.

If you have interested,free time to contact me please.

 
 

    
 

Pulley Type

There are several types of pulleys. These include fixed pulleys, load multipliers and movable pulleys. Below is a description of each pulley type. A load multiplier is a special type of pulley with multiple wheels for increased lifting capacity. It is used in a wide range of applications including power transmission and construction. Some common uses of pulleys are listed below.

moving pulley

Movable pulleys work by transferring the weight of a load to another object of the same mass. Since a live pulley is inherently frictionless and weightless, the force required to lift a load with it is the same as the weight of the load. This principle applies to tall buildings and residences. It is an excellent choice for lifting heavy objects such as furniture and washing machines.
A pulley is a mechanical device with a wheel that rotates on a shaft. The axle is attached to the wheel and is usually fixed. The movable pulley can be fixed or movable, both of which can change the direction of the force on the rope. Some pulleys can also change the magnitude and direction of the force. They are ideal for a variety of applications, from lifting heavy objects to transporting objects.
Another type of movable pulley works by transmitting force to another object. It has a free axis and the total force provided by the rope tension is balanced. Since the tension on the rope is constant in each segment, pulling 1 end of the rope will double the force on the shaft, resulting in 2 mechanical advantages. This mechanical advantage is the main reason why movable pulleys are so versatile.
Another form of moving pulley is called a KWL diagram. The KWL diagram summarizes the basic concepts of the drive wheel. KWL diagrams are an excellent way to assess a student's understanding of the concepts discussed in the course. Word questions are a great way to check whether students understand concepts. When students answer the word questions correctly, the answer is yes!
pulley

Fixed wheel pulley

If you need to move heavy objects, a single fixed wheel pulley is not a good choice. Using a single fixed pulley might be similar to using a handbag, but it's not very convenient. This type of pulley system relies on friction to transmit motion. As a result, it can slip and isn't always reliable. Fortunately, you can find other options that work just as well.
Fixed pulleys are the most basic type of pulley. They consist of grooved wheels and ropes attached to objects. These pulleys make lifting easier. Because the rope or cable only moves in 1 direction, the movement of the object feels lighter. And they are also easy to install. However, before you buy a fixed wheel pulley, make sure it is strong enough to support the weight of the load.
The disadvantages of fixed pulleys are obvious. One of them is the lack of mechanical advantage. A fixed pulley pulls up with the same force as a single moving pulley, and a single fixed pulley is not particularly effective as a force multiplier. However, the effect is more pronounced when you combine multiple fixed-wheel pulleys. You will get double the power! So what do fixed wheel pulleys have to offer?
Fixed wheel pulleys can be as small as a ring. A single ring pulley requires twice as much force as the weight being pulled. Adding more loops to the rope will reduce the effort required to pull the weight. The mechanical advantage of a fixed pulley is proportional to the number of strands running to the free pulley. A 100-pound pull on the free end will lift a 300-pound load.
pulley

composite pulley

Compound pulleys are pulleys that can be used to change the direction of a control wire. It can also be used to modify the mechanical force of the wire by moving the item it is connected to. In galleons, compound pulleys are more common. They are often combined with other ropes for mechanical advantage. Here are some common uses for composite pulleys.
The ideal mechanical advantage of a pulley is equal to the number of rope segments that pull up the load. This means that the more rope segments, the less force is required. A compound pulley will have the ideal mechanical advantage of 2, which means it will generate more force than a simple pulley. Composite pulleys are also more efficient at transmitting force because their number of rope segments is usually equal to the unit weight.
Composite pulley systems use more than 2 pulleys and ropes. More pulleys will reduce the force required to move heavier objects. They are usually used in large sailboats. The system is also used on construction sites. It can be used for a variety of applications, including lifting large objects or transmitting electricity. You can imagine how it would change your life if you had to move a large sailboat, but the result would be the same: a composite pulley system would make it easier to lift a large sailboat.
Composite pulleys are also known as fixed pulleys. The fixed pulley is stationary, and the movable pulley moves back and forth. The latter is more effective when used with a detachable cord or strap. On the other hand, a moving pulley is a moving pulley and it gives you a mechanical advantage. You can imagine this pulley on a flagpole.

load multiplier

The multiplication system has 3 basic parts: the rope grab, the connector, and the pulley. While some basic multipliers may combine the 3 parts, the concept remains the same. The multiplication system can make pulling the rope easier by reducing the amount of friction that occurs. Below are some examples of multiplication systems. A compact rope grab is a great option for resetting the multiplier.
The load reduction that a pulley system can achieve is proportional to the number of ropes used to support it. Although most utility pulley systems use only 4 ropes, the theoretical maximum load reduction is a quarter of the actual load. In other words, the four-wheel system only reduces the weight of a 1,000-pound load by a quarter. That would require 167 pounds of force, a far cry from the 500-pound load a single pulley system can achieve.
The mechanical advantage of a pulley system can be calculated by calculating the ratio between the forces exerted on each wire. For example, a 90-kilogram load is supported by 3 ropes, each weighing about 30-5 pounds. The ropes on pulleys A and B each carry a load of 60 kg. Using this formula, a single pulley system will yield a mechanical advantage over 2 tractors.
To calculate the force required to pull the rope over the pulley, measure the angle and deflection between the ropes. The deflection angle when added to the included angle should equal 180 degrees. A 75 degree angle requires 159% of the load force. This means a total load multiplier of four. This formula is an important tool for calculating the force multiple of the pulley.
pulley

Disadvantages of fixed pulleys

There are 2 basic types of pulleys: movable and fixed. Active pulleys are more advanced, allowing the pulley to move according to the load. They reduce the force required to lift the load. Active roller pulleys are more compact and therefore take up less space. Both types are good for lifting heavier objects, but they each have their pros and cons.
Fixed wheel pulleys can be used to lift heavy objects. This type of pulley consists of a wheel with a fixed shaft that has grooves on its edges for guiding ropes or cables. This is a simple machine as no motor or engine is required to lift objects. When 2 or more wheels are used together, the ropes around the wheels form a powerful hoist.
Single wheel pulleys are not suitable for lifting. They tend to push things down. Also, they are unreliable because they rely on friction and can slip. Also, a single wheel pulley would require a lot of space. Another disadvantage of fixed-wheel pulleys is that they make it difficult to move heavy objects easily. Single fixed-wheel pulleys also tend to slip easily, making them a poor choice for many applications.
Fixed wheel pulleys are also easier to install and maintain than manually operated ones. It requires less space and lubrication than manual pulleys. Manual pulleys can cause injury because the operator will be lifting the full weight of the heavy object. Additionally, rope slippage can lead to muscle strains and rope burns. And the system requires frequent maintenance.

China best Aluminum Alloy Timing Belt Pulley for 70at20-8640   with high qualityChina best Aluminum Alloy Timing Belt Pulley for 70at20-8640   with high quality

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