Product Description

Product Description

Advantages:
1.Good quality products
2.Competitive prices
3.Fast delivery
4.Best after-sale service
5.Brand: HeFa or OEM/ ODM
6.Normal torque drive timing pulley:MXL/XL/L/H
7.High torque gear type code:S2M/S3M/S5M/S8M/HTD3M/HTD5M/HTD8M/P2M/P3M/P5M/P8M
8.High precision position drive gear type code:2GT/3GT/5GT/8YU
9.Light load drive gear type code:T5/T10
10.Heavy load drive gear type:AT5/AT10

Specification	Standard or Custom made
Material	Stainless steel,,brass, carbon steel, aluminum, and so on.
Surface Treatment	Zn-plating, Ni-plating, Cr-plating, Tin-plating, Copper-plating, the wreath oxygen resin spraying, black oxide coating, painting, powdering, color zinc-plated,blue black zinc-plated, silver plating,anodizing etc.
Main Products	Precision spur gear, Timing pulley, Bevel pulley, Worm& worm gear, Timing Belt..
Producing Equipment	CNC machine , automatic lathe machine,stamping machine,CNC milling machine,rolling machine, lasering, tag grinding machine etc.
Management System	ISO9001 – 2008
Testing Equipment	Projecting apparatus, Salt Spray Test, Durometer, and Coating thickness tester , 2D projector
Lead time	10-15 working days as usual, 30days in busy season, it will based on the detailed order quantity.
Delivery of Samples	By DHL, Fedex, UPS,  TNT, EMS
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!!
Applications	Toy, Automotive, instrument, electrical equipment, household appliances, furniture, mechanical equipment,daily living equipment, electronic sports equipment, , sanitation machinery, market/ hotel equipment supplies, etc.

Technical Profile:

Part Number			[ M ] Material			[ S ] Surface Treatment
Belt Width 10mm	Belt Width 15mm	Belt Width 25mm	Pulley	Flange	Bushing	Pulley	Flange	MechaLock
A: 11 W: 16	A: 17 W: 22	A: 27 W: 32
AW_ _S5MK100	AW_ _S5MK150	AW_ _S5MK250	Aluminum Alloy 2000 series		1045 Carbon Steel	Clear Anodize		–
AH_ _S5MK100	AH_ _S5MK150	AH_ _S5MK250			1045 Carbon Steel	Hard Clear Anodize*
AN_ _S5MK100	AN_ _S5MK150	AN_ _S5MK250				Nickel Plating
SF_ _S5MK100	SF_ _S5MK150	SF_ _S5MK250	1045 Carbon Steel	Low Carbon Steel	1045 Carbon Steel	Black Oxide
SN_ _S5MK100	SN_ _S5MK150	SN_ _S5MK250

Specifications:

Part Number			Pulley Shape	dH7 Range (Select Shaft Bore Dia. from Table 1)						P.D.	O.D.	F	E
Type	Number of Teeth	Type, Nominal Width		S5MK100		S5MK150		S5MK250
				E Shape	F Shape	E Shape	F Shape	E Shape	F Shape
AW AH AN SF SN	22	S5MK100 *A: 11 *W: 16 S5MK150 *A: 17 *W: 22 S5MK250 *A:27 *W: 32	E F	8	–	–	–	–	–	35.01	34.05	40	27
	24			8~ 10	8	10	8	10	8	38.20	37.24	45	30
	25			8~ 10		10	8	10	8	39.79	38.83
	26			8~12		10~12	8~12	10~12	8~ 12	41.38	40.42	48	35
	28			8~12					8~12	44.56	43.60
	30			10~15	–	10~15	8~15	10~15	10~12	47.75	46.79	52	36
	32			10~17		10~17	10~12	10~17	10~12	50.93	49.97	55	40
	34								10~17	54.11	53.15	61	45
	36									57.30	56.34
	40									63.66	62.70	67	50
	44			12~25		12~25	12	12~25	12~25	70.03	69.07	74	58
	48			12~28		12~28		12~28	12~28	76.39	75.43	83	63
	50			12~32		12~32		12~32	12~32	79.58	78.62	87	67
	60					12~40		12~40	12~35	95.49	94.53	99	80
	72					12~42		12~42	12~35	114.59	113.63	119	100

 

Table 1: Select Shaft Bore Diameter

H7	Max. Allowable Torque Nm		D		(L)
	ST Bushing	SH Bushing	ST Bushing	SH Bushing
8	16	8.52	5.5	24.5	8.5
10	39	18	30	29	10.5
11	43	20	31	30
12	48	23	32	31
14	73	37	35	36	12
15	78	39	36	37
16	83	42	37	38	13
17	88	45	38	39
18	154	48	43	40	14
19	163	49	45	42
20	171	97	46	46
22	186	110	48	47
24	206	121	50	49
25	216	124	52	51
28	353	141	54	53	15.5
30	382	149	57	56
32	412	163	59	58	16.5
35	451	173	63	61
38	686	–	70	–	19
40	725		71
42	757		74		20

[ 1 ]Electroless nickel plated bushing decreases maximum allowable torque and allowable thrust load by 20~30%

Company Profile

Hefa Produce items mainly include timing pulley series, precising grinding gear series and planetary gear reducer series. ” Focus and Professional on the Development of Conveyor Field” is our CZPT aim.

We are a professional manufacturer, can produce the whole series of parts and meet various demands for different requests. We can also make the parts according to buyer’s design or drawings.
We have introduced advanced equipment.

Packaging & Shipping

Packaging Details:white box+carton or as customer’s demand

Delivery Detail:15days after receipt of deposit 

 

What is a pulley?

Pulleys are shafts or wheels on a shaft that support the movement and change of direction of a taut cable. The pulley also transfers power from the shaft to the cable. A simple pulley is used to raise the school flag. Read on to learn about the basic types of pulleys. We also covered the use of pulleys in everyday life. Read on to learn more about this important mechanical part.

composite pulley

A composite pulley is a mechanical system where 2 or more pulleys and ropes are connected together. It reduces the force required to lift the load because the force is divided by the distance of each pulley. Distance is equal to the mass of the object. Composite pulleys are a common mechanical system on sailboats. Composite pulleys can be used to lift heavy equipment such as sails.
The compound pulley unit consists of 2 pulleys, 1 fixed and the other movable. The fixed pulley is fixed overhead, while the movable pulley is connected to the load by a chain. The lift applies force to the other end of the rope. Anchor points are attached to fixed joists, ceiling joists or sturdy branches. The chain should be long enough to support the load during lifting.
Composite pulleys can be made from a variety of materials. Some are fixed and remain fixed. Others are detachable. The composite pulley combines the advantages of both types, making it a versatile tool. In the table below, these 3 types of pulleys are compared. It’s easy to see which 1 is best for your needs. The right choice depends on your specific needs and budget.
The compound pulley system consists of 2 fixed pulleys and 1 movable pulley. The compound pulley system multiplies the force by a factor of 2. The compound pulley system is particularly suitable for heavy loads and is ideal for construction sites. Workers apply less than half the load force on the composite pulley, significantly reducing the force required. This is a major benefit for many people.

Fixed pulley

Fixed pulleys are fixed gears of fixed length that are mounted on solid objects. There are many different types of pulley systems. Some cooperate with each other, but not “fixed”.
Fixed pulleys can be used for a variety of purposes. One application is to lift small objects. They have a one-to-1 mechanical advantage. Often, a single pulley can lift small loads. The force required to lift a single fixed pulley remains the same. They are usually used to lift lighter objects. They can even be attached to buckets used to draw water from wells.
While single fixed pulleys have desirable mechanical advantages, they are not suitable for force multipliers. Because their mechanical advantage diminishes over time, they are not effective force multipliers. They are used to redirect work so that it can be applied in the most convenient direction. This mechanical advantage is the main advantage of fixed pulleys and the most common way of moving objects. They have several benefits, including the ability to increase the speed of moving objects.
Another application for fixed pulleys is lifting supplies. A scaffold can weigh more than 1 and can be directly hoisted. In order to facilitate the transportation of materials, fixed pulleys are usually installed on the top of the scaffolding on construction sites. Then thread the rope through the edge of the groove that holds the pulley. The fixed pulley exerts the same force on the pull side as on the push side. The same is true for moving objects with fixed pulleys.

moving pulley

A movable pulley is a device whose part is fixed to another object, usually a rod or beam. The movable part moves with the load, making the load feel lighter. This is a useful tool for those who need to carry heavy items such as large bags. The advantages of moving pulleys are many. Here are some of them. Read on to learn more about them.
One of the most common uses of movable pulley systems is climbing high objects. Climbers act as pulley loads and pull ropes to lift objects. Eventually, when the traction stops, the climber descends. However, it is still a useful tool in other situations. The movable pulley system can help you climb the tallest objects or lift them to level surfaces.
Another example of movable pulleys is in industry. Depending on the load, movable pulleys make handling and moving loads easier. You can use them in a variety of applications in manufacturing and industry, including cleaning. For example, the American flag is raised and lowered every day. Removable pulleys are a handy tool when buildings need cleaning.
If you’re not sure whether a task requires a pulley, a zipline might be a good option. Connect the 2 ends of the rope and the pulley will move along the rope, then attach the rope to the metal cable. The load is the person holding the pulley, and the force comes from the attachment on the other end of the rope. There are 2 types of live pulleys: simple pulleys with just 1 wheel and live pulleys with many ropes attached.

School flag raised with simple pulleys

How is the school flag raised? It is pulled up by a rope attached to a pulley at the top of the pole. When the rope is pulled, the pulley turns, raising the flag. A pulley is a simple mechanism that helps people move heavier objects with ease. The rope must be securely attached to the pulley to keep the flag stable.
A simple pulley is a spinning wheel with grooves on 1 side and ropes on the other. The rope can be any length and the wheels can be any size. The rope has to go through the groove and the load is attached to the other end of the rope. Simple pulleys are pulleys with fixed shafts. An example is the wheel on a school flagpole.
A simple pulley system consists of a primary pole, a secondary pole and an outer member. The primary flagpole is connected to the track by a detour, while the secondary flagpole is connected to the track by a pipe. There is a groove on 1 side of the track, which passes through the inner cavity of the flagpole. An open track at the upper end of the track connects the 2 parts of the pulley.
A simple pulley can be used for many purposes. This is a useful machine that can be used to raise the flag. Among other things, it can be used in clothing lines, bird feeders, and even roofers. And, of course, you can use the pulley to raise the flag. Its versatility makes it an essential part of school decor.

cast iron pulley

If you are looking for pulleys for your machine, you may come across cast iron pulleys. They are usually cheap and available in a variety of sizes. The rim is held in place by a mesh attached to a central boss. The arms and spokes can be straight or curved, but most are oval. There are many uses for this type of pulley.
You might wonder why the arms of cast iron pulleys are so curved. Bent arms tend to yield rather than break. Cast iron pulleys are usually round with a slight bump on the rim, which helps keep the belt centered on the rim as it moves. On a 300mm diameter pulley, the bumps may be as small as 9mm.