China manufacturer 7218 Angular Contact Ball Bearing 7211/ 7212/ 7213/ 7214/ 7215/ 7216/ 7217/ 7218/ 7219/ 7220 Circular Gear/ Cylindrical Cam/ Cylindrical Worm/ Tension Pulley with Best Sales

Product Description


   Product Name    Angular contact ball bearing
    Product Model     7218
    Material     Chrome steel  
    Brand     Chinese brand CZPT or OEM             
    Package     A. Tube package + outer carton + pallets
    B. Single box + outer carton + pallets
    C. Tube package + middle box + outer carton + pallets
    D. According to your request.
    Sample     Available     
    Type     Open/ RS/ 2RS/ Z/ 2Z/ N/ NR
    Cage     Steel cages   
    Payment     A. T/T
    B. Western union
    C. Paypal     
    D. L/C                            
    Delivery Time     3-10 days

Single-row Angular contact ball bearings can sustain radial, axial or combined loads with the axial load being from 1 direction. The larger contact angle type has better axial load capacity while the smaller contact angle type has higher speed ratings. Available in bore dimension from 10 mm to 220 mm.

Common Options:
B — 40 degree contact angle
TVP– Polyamide Cage
MP– Machined Brass Cage
G– Flush Ground


7200 Series – Angular Contact Ball Bearing
Angular single row ball bearing have a 40° contact angle
Item No. Dimensions Basic Load Ratings (N) Speed (1/min) Mass
(mm) Dynamic Static (kg)
d D B Cr C0r Limiting Reference approx.
7200 10 30 9 5,000 2,600 32,000 26,000 0.033
7201 12 32 10 6,950 3,550 28,000 26,000 0.035
7202 15 35 11 8,000 4,450 24,000 22,000 0.044
7203 17 40 12 10,000 5,700 20,000 20,000 0.064
7204 20 47 14 13,400 7,800 18,000 18,000 0.103
7205 25 52 15 14,600 9,300 16,000 16,000 0.127
7206 30 62 16 20,400 14,100 13,000 13,000 0.197
7207 35 72 17 27,000 19,000 11,000 12,000 0.290
7208 40 80 17 32,000 23,500 9,500 10,000 0.367
7209 45 85 19 36,000 27,000 8,500 9,500 0.411
7210 50 90 20 37,500 28,500 8,000 9,000 0.456
7211 55 100 21 46,500 38,500 7,000 8,500 0.604
7212 60 110 22 56,000 45,000 6,300 7,500 0.777
7213 65 120 23 64,000 55,000 6,000 7,000 1.080
7214 70 125 24 69,500 62,000 5,600 6,700 1.170
7215 75 130 25 68,000 62,000 5,300 6,700 1.250
7216 80 140 26 80,000 72,000 5,000 6,000 1.530
7217 85 150 28 90,000 86,000 4,500 6,000 1.940
7218 90 160 30 106,000 98,000 4,300 5,600 2.380
7219 95 170 32 116,000 106,000 4,000 5,300 2.640
7220 100 180 34 137,000 132,000 3,800 5,000 3.450
7221 105 190 36 144,000 142,000 6,000 4,800 4.180
7222 110 200 38 155,000 154,000 3,600 4,500 4.700
7224 120 215 40 169,000 178,000 3,400 4,300 5.310
7226 130 230 40 186,000 204,000 3,200 3,800 6.120
7228 140 250 42 198,000 231,000 4,800 3,400 8.550
7230 150 270 45 227000 275000 4,500 3000 10.900
7232 160 290 48 236,000 280,000 4,300 2,800 13.500
7234 170 310 52 265,000 325,000 3,800 2,600 16.700
technical changes reserved, some items may not be available from stock.                                                                  dsrbearing

ZheJiang CZPT Bearing can supply you with the broadest possible array of bearings. In addition to Ball bearing, Roller bearing, Needle bearing, Pillow Blocks, we manufacture Flange blocks, Rolling mill bearing, Slide bearing and Water pump bearing. Our unparalleled experience as a total manufacturer and exporter for these industries is essential for the development and application of a premier product line for all general industries.

We pride ourselves on our ability to serve every customer, from backyard mechanics, to independent shop owners, to automotive technicians, to large manufacturing plants. Our Target Industries served are Agricultural Equipment, Cranes, Electric Motors, Gearboxes, Material Handling, Packaging Machinery, Power Tools, Pumps, Railways and Transportation, Robotics, and products for Textile Machinery. ZheJiang Bearing Company is a stronger and growing exporter of bearing in China.

In addition to manufacturing commodity-based bearing products, CZPT Bearing makes custom bearing solutions for OEM. ZheJiang CZPT bearing has stringent quality control standards and maintains complete control over supply, using only the highest grade bearing steel.

Our mission is to fully provide for you. Well into our more than Ten years of business, we are confident that you’ll find what you’re looking for in bearing product here. Please call, email, or stop by for more information.

We are very confident in our products, and we are sure that we can earn your trust!

                                                                                            Q: What the MOQ of your company?
                                                                                            A: In stock, MOQ is 1pc. 

                                                                                            Q: Could you accept OEM and customize?
                                                                                            A: YES, we can customize for you according to sample or drawing.

                                                                                            Q: Could you supply sample for free?
                                                                                            A: Yes, we can supply sample for free, you only need to pay for the shipping cost.

                                                                                            Q: Is you company factory or Trade Company?
                                                                                            A: We have our own factory, our type is factory + trade.

                                                                                            Q: Could you tell me the material of your bearing?
                                                                                            A: We have chrome steel, carbon steel, stainless steel and ceramic.

                                                                                            Q: Could you offer door to door service?
                                                                                            A: Yes, by express (DHL, FEDEX, TNT, EMS) 4-10 days to your city.

                                                                                            Q: What is your company payment terms?
                                                                                            A: T/T. Western Union, PayPal
                                                                                            Q: Could you tell me the delivery time of your goods?
                                                                                            A: If stock, in 7 days or base on your order quantity.

                                                                                            Dear friend, if you have any questions, contact us please!

The benefits of using pulleys

A pulley is a mechanical device that converts force into rotation. There are many advantages to using pulleys. Let’s take a look at a few of them. This article will describe the advantages, types, applications, and power sources of pulleys. You can then choose the pulley that best suits your specific needs. If you’re looking for a new tool to help you with a certain task, this article is for you.

Mechanical advantage

The mechanical advantage of a pulley can be defined as the ratio of applied force to the applied force. The mechanical advantage of a pulley can be calculated by considering several factors, including weight and friction. It can be calculated by the force applied per unit length of rope and the number of pulleys used. In a single-circuit system, the force required to lift a heavy object is equal to the user’s body weight.
The mechanical advantage of a pulley can be realized by comparing it to a seesaw. Both uses of rope are suitable for lifting objects. A rope 4 times heavier than a kilo is 4 times as effective. Because the forces on both sides of the pulley are equal, a small force is enough to move a large weight a short distance. The same force can be applied to a large mass to lift it several meters.
After introducing the concept of mechanical advantage, learners will practice using the pulley system. In addition to testing the pulley system, they should also calculate its mechanical advantage. Using either the instructor-provided handout or the learner’s workbook, students will determine how easily the pulley system functions. Once they have completed the test, they can discuss their results and how the system can be improved. These courses are best completed as part of a mini-unit or as a standalone main course.
The mechanical advantage of the pulley system is proportional to the number of rope loops. This circuit requires the same force as the dual circuit to lift heavy objects. A single lap requires only a third of the force to lift a double lap, while 3 laps require almost half the energy required for a single lap. The mechanical advantage of the pulley system becomes constant as the number of cycles increases.
The 3:1 Mechanical Advantage system feels like lifting a 300-pound load with 3 feet of rope. The three-foot-long rope moves the load 1 foot high. Understanding the mechanical advantages of pulleys is critical for rescuers when trying to create the perfect pulley system. Ideally, the pulley system will be anchored to a nearby rock, tree, pole or person – if the weight is not too heavy.

Types of pulleys

There are several types of pulleys. V-belt pulleys are the type commonly used in vehicles and electric motors. “V” pulleys require a “V” belt, and some even have multiple V grooves. “V” pulleys are often used in heavy duty applications for power transmission because they reduce the risk of power slippage.
Composite pulleys combine the properties of fixed and movable pulleys. Compound pulleys are able to change the direction of force while requiring relatively low force to move even the heaviest loads. Mechanical advantage is a measure of the effectiveness of a machine or equipment. It can be divided into 3 categories: force, distance and mechanics. Once you understand how each type works, you can design complex machines.
Fixed pulleys: These pulleys are the most basic type of pulleys. They use ropes and slotted wheels to move with the lifted object. Because they are so simple to set up, lifting heavy objects is a breeze. Although the moving object feels light, it is actually heavier than it actually is. These pulleys are used in construction cranes, utility elevators and many different industries.
Compound Pulley System: A pulley pulley is a combination of 2 fixed pulleys and 1 movable pulley. Compound pulley systems are effective for moving heavy objects because they have the largest force multipliers and are flexible enough to change the direction of the force as needed. Composite pulley systems are commonly used in rock climbing, theater curtains and sailing. If you’re looking for a pulley system, you can start by evaluating the types of pulleys and their uses.
Construction Pulleys: These are the most basic types of pulleys and have wheel rails. These pulleys can be lifted to great heights and attached to chains or ropes. They allow workers to access equipment or materials from greater heights. They are usually mounted on wheels with axles and secured with ropes. They are essential tools for construction workers. There are many different types of pulleys out there.

energy source

Belts and pulleys are mechanical devices used to transmit energy and rotational motion. The belt is connected to the rotating part of the energy source, and the pulley is mounted on the other. One pulley transmits power to the other, while the other changes the direction of the force. Many devices use this combination, including automobiles, stationary generators, and winches. It is used in many home applications, from conveyors to treadmills. Pulleys are also used for curtains in theater halls.
Pulley systems are an essential part of modern industry and everyday life. Pulleys are used in elevators, construction sites and fitness equipment. They are also used in belt-driven generators as backup power. Despite their simple and seemingly humble beginnings, they have become a versatile tool. From lifting heavy objects to guiding wind turbines, pulley systems are widely used in our daily lives.
The main reason why pulleys are so popular is the mechanical advantage they offer. They can lift a lot of weight by applying very little force over longer distances. For example, a small motor can pull 10 meters of cable, while a large motor can pull 1 meter. Also, the work done is equal to the force times the distance traveled, so the energy delivered to the large motor is the same.
The power source for the pulley system can be cables, belts or ropes. The drive element in a pulley system is usually a rope or cable. A belt is a loop of flexible material that transmits motion from 1 pulley to another. The belt is attached to the shaft and a groove is cut in the pulley. The belt then transfers energy from 1 pulley to the other through the system.


A pulley is a mechanical device used to lift heavy objects. They reduce the amount of work required to lift heavy objects and are an excellent choice for many applications. There are several different applications for pulleys, including elevators, grinders, planters, ladder extensions, and mountaineering or rock climbing. Let’s take a look at some of the most popular uses for pulleys in modern society. These include:-
A pulley is a mechanical device that changes force. To use, you wrap the rope around it and pull down to lift the object. While this device is very useful, a major limitation of using pulleys is that you still have to apply the same force to lift the object as you would without the pulleys. This is why people use pulleys to move large objects like furniture and cars.
In addition to lifting heavy objects, pulleys are used in elevators, flagpoles and wells. These systems allow people to move heavy objects without straining their backs. Many other examples of pulleys in the home include garage doors, flagpoles, and elevators. They also help raise and lower flagpoles, which can reach several stories high.
There are 2 basic types of pulleys: movable and fixed. Fixed pulleys are attached to a ceiling or other object using 2 ropes. Modern elevators and construction cranes use movable pulleys, as do some weight machines in gyms. Composite pulleys combine movable and fixed pulleys to minimize the force required to move heavy objects.
Another type of fixed pulley is the flagpole. A flagpole can support a country, organization, or anything else that needs to be lifted. A taller flagpole creates a prouder moment for those who support it. The operation of the rope and pulley mechanism is very simple. The user simply attaches the flag to the rope, pulls the pulley, and he or she can watch the flag rise and unfold.

China manufacturer 7218 Angular Contact Ball Bearing 7211/ 7212/ 7213/ 7214/ 7215/ 7216/ 7217/ 7218/ 7219/ 7220 Circular Gear/ Cylindrical Cam/ Cylindrical Worm/ Tension Pulley     with Best SalesChina manufacturer 7218 Angular Contact Ball Bearing 7211/ 7212/ 7213/ 7214/ 7215/ 7216/ 7217/ 7218/ 7219/ 7220 Circular Gear/ Cylindrical Cam/ Cylindrical Worm/ Tension Pulley     with Best Sales

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