China Standard 7219 Angular Contact Ball Bearing 7211/ 7212/ 7213/ 7214/ 7215/ 7216/ 7217/ 7218/ 7219/ 7220 for Driving Gear/ Driving Pulley/ Driving Link/ Rotor/ Bevel Gear near me shop

Product Description


   Product Name    Angular contact ball bearing
    Product Model     7219
    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!

Three basic types of pulleys, their applications and ideal mechanical advantages

There are 3 basic types of pulleys: movable, fixed and compound. Each has its advantages and disadvantages, and you should be able to judge which type is best for your needs by looking at the table below. Once you have mastered the different types of pulleys, you can choose the right pulley for your next project. Now that you have mastered the 3 basic types, it is time to understand their applications and ideal mechanical advantages.


The stress characteristics of a pulley depend on its size and construction. These stresses are derived by comparing the stress characteristics of different pulley designs. Stress criteria include static and fatigue strength analyses and specify maximum stress ranges. Stresses are calculated in a 3D stress field, including radial, tangential and axial stresses. The stress characteristics of pulleys are critical to the design and manufacture of industrial machines.
The principal stresses on the pulley shell are distributed in the tangential and hoop directions, close to the centerline of the pulley. If the pulley has a wide face, the axial stress occurring near the shell/disk junction can be large. The stress distribution was determined using British Standard BS5400 Part 10: Stresses at the shell and end disc connections for infinite fatigue life.
Another type of composite is a pulley with a belt section. Such structures are well known in the art. The corresponding help chapters for these elements contain detailed descriptions of the internal structure of these components. Chamfers between pulleys can also be defined using multiple tapers, with a smaller taper extending from midpoint 44 to large diameter 42. Additionally, the pulley can have multiple taper angles, and as the pulley moves away, the taper angle is from the center.


A pulley system uses a rope to move the object and 1 side of the rope to lift the load. The load is attached to 1 end of the pulley, while the other end can move freely in space. The force applied to the free end of the rope pulls the load up or down. Because of this, the mechanical advantage of the movable pulley is 2 to one. The greater the force applied to the free end of the rope, the greater the amount of movement achieved.
There are 3 common types of pulleys. The cast-iron variety has a rim at the front and a hub at the back. The arms of the pulley can be straight or curved. When the arms contract and yield instead of breaking, they are in tension. The top of the pulley centers the belt in motion and is available in widths ranging from 9mm to 300mm.
The rope, hub and axle are mounted on the pulley. They are common and versatile mechanical devices that make it easier to move or lift objects. Some pulleys change the direction of the force. Others change the magnitude. All types of pulleys can be used for a variety of different applications. Here are some examples. If you’re not sure which type to choose, you can find more resources online.


The applications for pulleys are almost limitless. This simple machine turns complex tasks into simple ones. They consist of a rope or chain wrapped around a wheel or axle. Using ropes, 1 can lift heavy objects without the enormous physical exertion of traditional lifting equipment. Some pulleys are equipped with rollers, which greatly magnifies the lifting force.
When used properly, the pulley system can change the direction of the applied force. It provides a mechanical advantage and allows the operator to remain separate from heavy objects. They are also inexpensive, easy to assemble, and require little lubrication after installation. Also, once installed, the pulley system requires little maintenance. They can even be used effortlessly. Despite having many moving parts, pulley systems do not require lubrication, making them a cost-effective alternative to mechanical lifts.
Pulleys are used in many applications including adjustable clotheslines in different machines, kitchen drawers and motor pulleys. Commercial users of pulley systems include cranes. These machines use a pulley system to lift and place heavy objects. They are also used by high-rise building washing companies. They can easily move a building without compromising its structural integrity. As a result, many industries rely on technology to make elevators easier.

Ideal mechanical advantage

The ideal mechanical advantage of a pulley system is the result of rope tension. The load is pulled to the center of the pulley, but the force is evenly distributed over the cable. Two pulleys will provide the mechanical advantage of 2 pulleys. The total energy used will remain the same. If multiple pulleys are used, friction between pulleys and pulleys reduces the return of energy.
Lever-based machines are simple devices that can work. These include levers, wheels and axles, screws, wedges and ramps. Their ability to work depends on their efficiency and mechanical superiority. The ideal mechanical advantage assumes perfect efficiency, while the actual mechanical advantage takes friction into account. The distance traveled by the load and the force applied are also factors in determining the ideal mechanical advantage of the pulley.
A simple pulley system has an MA of two. The weight attached to 1 end of the rope is called FA. Force FE and load FL are connected to the other end of the rope. The distance that the lifter pulls the rope must be twice or half the force required to lift the weight. The same goes for side-by-side pulley systems.

Materials used in manufacturing

While aluminum and plastic are the most common materials for making pulleys, there are other materials to choose from for your timing pulleys. Despite their different physical properties, they all offer similar benefits. Aluminum is dense and corrosion-resistant, and plastic is lightweight and durable. Stainless steel is resistant to stains and rust, but is expensive to maintain. For this reason, aluminum is a popular choice for heavy duty pulleys.
Metal can also be used to make pulleys. Aluminum pulleys are lightweight and strong, while other materials are not as durable. CZPT produces aluminium pulleys, but can also produce other materials or special finishes. The list below is just representative of some common materials and finishes. Many different materials are used, so you should discuss the best options for your application with your engineer.
Metals such as steel and aluminum are commonly used to make pulleys. These materials are relatively light and have a low coefficient of friction. Steel pulleys are also more durable than aluminum pulleys. For heavier applications, steel and aluminum are preferred, but consider weight limitations when selecting materials. For example, metal pulleys can be used in electric motors to transmit belt motion.


Replacing a tensioner in a car’s engine can cost anywhere from $90 to $300, depending on the make and model of the car. Cost can also be affected by the complexity of the pulley system and how many pulleys are required. Replacement costs may also increase depending on the severity of the damage. The cost of replacing pulleys also varies from car to car, as different manufacturers use different engines and drivetrains.
Induction motors have been an industrial workhorse for 130 years, but their cost is growing. As energy costs rise and the cost of ownership increases, these motors will only get more expensive. New technologies are now available to increase efficiency, reduce costs and improve safety standards.
The average job cost to replace an idler varies from $125 to $321, including labor. Parts and labor to replace a car pulley can range from $30 to $178. Labor and parts can cost an additional $10 to $40, depending on the make and model of the car. But the labor is worth the money because these pulleys are a critical part of a car’s engine.

China Standard 7219 Angular Contact Ball Bearing 7211/ 7212/ 7213/ 7214/ 7215/ 7216/ 7217/ 7218/ 7219/ 7220 for Driving Gear/ Driving Pulley/ Driving Link/ Rotor/ Bevel Gear     near me shop China Standard 7219 Angular Contact Ball Bearing 7211/ 7212/ 7213/ 7214/ 7215/ 7216/ 7217/ 7218/ 7219/ 7220 for Driving Gear/ Driving Pulley/ Driving Link/ Rotor/ Bevel Gear     near me shop