China supplier Low-Priced High Quality Round Bearing Pulley From China Manufacturer belt pulley

Description du produit

Photos détaillées

Description du produit

Profil de l'entreprise

ABOUT US
CHINAMFG was set up in 1996 and located at HangZhou, a beautiful city in China. Our company is bearing manufacturer&bearing distributor. Since it was first established, CHINAMFG was dedicated in research, development and manufacture of bearings. Now, CHINAMFG has become main and 1 of the first grade suppliers of all kinds of bearings. We could develop the products constructed from different materials, structures, shapes, colors etc.
WELCOME TO THE CLUB!

1. Our rollers are in stable quality with smooth rotation, long life operation, small movement, advanced injection technology engineering etc.

2. The Adjustable Rollers with smooth and long lasting operation, higher performing features like wider adjustment ranges, long rolling life performance, easy installment. It's available in multiple housing choices with any wheels to fit different aluminnum. Our roller ensure alignment across the full adjustment ranges within built-in retention system.

3. The customized hardware, like plastic parts, stamping patrs, cold forging steel patrs are widely applied in the window and doors, furniture, householders, transmission system, industrial drive system etc.

We are constantly improving and striving for excellent service. We hold a very high regard for our customers, the quality of our products, and our level of customer service.

FAQ

1. who are we?
We are based in ZheJiang , China, start from 2017,sell to North America(1.00%),Africa(1.00%),Western Europe(1.00%),Southern Europe(1.00%). There are total about 51-100 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Bearing cage,Bearing pulley,Plastic products,Miniature bearing,Needle roller bearing

4. why should you buy from us not from other suppliers?
Hardware pulley source factory,20 years professional bearing pulley experience

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW;
Accepted Payment Currency:USD,EUR,JPY,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese,Spanish,Japanese,F

Nos avantages

Sliding glass doors are becoming more and more popular, because of the view and natural lighting that they provide. But there can be some difficulty when it comes to maintaine them, such as the rollers have worn out. The key part is knowing which roller matches the original. Many people believe that alternatives can be found by identifying the door manufacturer individually. Actually, Most rollers are generic and used by various door manufacturers.

As the professional manufacturer of sliding rollers, we use various identifying characteristics to determine the best replacement option for your door. In addition to the number of wheels your roller uses to support the door, the presence of dimples, bumps, cut-outs and flared edges on the rollers housing will narrow down replacement options substantially. The way that the assembly installs in the door frame is also vital. The key dimensions to confirm a replacement include the width and height of the roller's outer housing, as well as the diameter of the wheel. In addition to the diameter of the wheels, the material that they're made of, steel or nylon, is also a factor. Long-term, metal wheels are known to hold up better but they can also cause the track to wear out faster, especially on heavy doors. Nylon wheels tend to be kinder to the track but may not last as long as their steel counterparts.

Purchase Notice

1.Pls send us an inquiry or leave us a message, there will be a dedicated staff to serve you within 1 hours.
2.You can ask us to take actual photos of the products for you, and free samples would be provided.
3. Welcome to visit our factory to negotiate orders, we will do our best to protect the safety of your business journey.
4. Packaging can be customized according to customer requirements
Finally, Please be sure to click “Contact supplier” to contact us, or “Call us” with any questions that you may have.

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Comment fonctionnent les poulies dans différents types de véhicules et de machines ?

Les poulies jouent un rôle crucial dans de nombreux types de véhicules et de machines, permettant la transmission de puissance, le contrôle des systèmes mécaniques et un fonctionnement efficace. Voici comment fonctionnent les poulies dans diverses applications :

1. Moteurs automobiles : Dans les véhicules, les poulies sont couramment utilisées dans le système d'entraînement des accessoires du moteur. La poulie de vilebrequin, également connue sous le nom d'équilibreur harmonique, est reliée au vilebrequin du moteur et entraîne divers accessoires tels que l'alternateur, la pompe de direction assistée et le compresseur de climatisation. Les poulies permettent le transfert de la puissance de rotation du moteur à ces accessoires, leur permettant ainsi de remplir leurs fonctions respectives.

2. Systèmes à entraînement par courroie : les poulies sont largement utilisées dans les systèmes à entraînement par courroie de divers équipements et machines. Ces systèmes utilisent des courroies, telles que des courroies trapézoïdales ou des courroies de distribution, qui s'enroulent autour des poulies pour transférer la puissance. Les exemples incluent les systèmes de convoyeurs, les machines industrielles, les équipements agricoles et les systèmes CVC. Les poulies fournissent l'adhérence et la tension nécessaires pour assurer une transmission de puissance et un fonctionnement efficaces du système d'entraînement.

3. Grues et palans : les poulies font partie intégrante des grues et des palans, permettant le levage et le déplacement de charges lourdes. Plusieurs poulies, souvent disposées selon une configuration de palan, sont utilisées pour créer un avantage mécanique, réduisant l'effort requis pour soulever la charge. En répartissant le poids de la charge sur plusieurs brins de corde ou de câble, les poulies permettent un levage contrôlé et un positionnement précis des objets.

4. Équipement de construction : les poulies sont présentes dans divers types d'engins de chantier. Par exemple, dans les excavatrices et les grues, les poulies sont utilisées dans les systèmes de câbles métalliques pour lever et abaisser la flèche, le godet ou d'autres accessoires. Les poulies aident à gérer les forces impliquées dans ces opérations, offrant un mouvement fluide et contrôlé.

5. Ascenseurs : les poulies sont des composants essentiels des systèmes d'ascenseurs. Les cabines d'ascenseur sont suspendues par des câbles en acier qui passent sur des poulies. Ces poulies sont reliées à un moteur électrique par un système d'engrenages et de poulies. Lorsque le moteur fait tourner les poulies, la cabine d'ascenseur monte ou descend. Les poulies des systèmes d'ascenseurs contribuent à transférer efficacement la puissance et à maintenir la stabilité et la sécurité du transport vertical.

6. Équipement d'exercice : les poulies sont largement utilisées dans les machines d'exercice et les équipements de gymnastique pour fournir une résistance et permettre des niveaux de résistance réglables. En incorporant des systèmes de poulies avec différentes configurations et dispositions de câbles, les équipements d'exercice peuvent offrir une variété d'exercices ciblant des groupes musculaires spécifiques.

7. Applications marines : les poulies sont utilisées dans diverses applications marines, telles que les voiliers et les treuils. Les poulies permettent de contrôler le mouvement et la tension des cordes et des câbles, permettant ainsi le réglage des voiles, la montée et la descente du mât et d'autres opérations de gréement.

8. Portes de garage : les poulies sont utilisées dans les mécanismes de portes de garage pour faciliter l'ouverture et la fermeture en douceur des portes. Elles sont utilisées en conjonction avec des câbles ou des courroies, permettant le transfert de force de l'ouvre-porte à la porte elle-même.

Ces exemples démontrent la polyvalence et l'importance des poulies dans une large gamme de véhicules et de machines. En utilisant des poulies, ces systèmes peuvent obtenir une transmission de puissance efficace, un avantage mécanique, un mouvement contrôlé et une fonctionnalité améliorée.

Comment les poulies contribuent-elles au fonctionnement des vélos et des motos ?

Les poulies jouent un rôle important dans le fonctionnement des vélos et des motos, en contribuant à la transmission de puissance, au contrôle de la vitesse et à l'efficacité mécanique globale. Voici comment les poulies contribuent au fonctionnement de ces véhicules :

1. Vélos :

– Derailleur System: In most modern bicycles, pulleys are used in the derailleur system. The derailleur is responsible for shifting the bicycle chain between different gears on the front and rear sprockets. Pulleys, often referred to as jockey wheels, are positioned in the derailleur to guide and tension the chain as it moves between gears. They ensure smooth and precise shifting, allowing the rider to adapt to various terrains and maintain an optimal pedaling cadence.

– Belt Drive Systems: Some bicycles use a belt drive instead of a traditional chain drive. Belt drives employ a pulley system that consists of a front pulley attached to the pedal crank and a rear pulley attached to the rear wheel hub. The belt is wrapped around these pulleys, transferring power from the rider's pedaling motion to propel the bicycle forward. Pulleys in belt drive systems enable efficient power transfer, reduce maintenance needs, and provide a quieter and cleaner alternative to chain drives.

2. Motos :

– Clutch System: Pulleys, known as clutch pulleys, are utilized in motorcycle clutch systems. The clutch connects the engine to the transmission and allows the rider to engage or disengage power transmission to the rear wheel. When the clutch lever is pulled, the clutch pulley separates the engine's rotational motion from the transmission, disengaging power transfer. Releasing the clutch lever brings the pulley back into contact, engaging power transmission and enabling the motorcycle to move.

– Variable Transmission Systems: Some motorcycles employ pulleys in variable transmission systems, such as continuously variable transmissions (CVT). CVTs use a pair of pulleys connected by a belt or chain. By changing the diameter of the pulleys, the CVT adjusts the gear ratio continuously, providing seamless and efficient power delivery across a wide range of speeds. Pulleys in variable transmission systems contribute to smooth acceleration, improved fuel efficiency, and enhanced riding comfort.

– Drive Belt Systems: Pulleys are also utilized in motorcycles equipped with belt drive systems. Similar to bicycles, these systems consist of a front pulley connected to the engine's crankshaft and a rear pulley connected to the rear wheel. The belt runs around these pulleys, transferring power from the engine to the rear wheel. Belt drive systems offer advantages such as reduced maintenance, quieter operation, and smoother power delivery compared to traditional chain drives.

Dans l'ensemble, les poulies sont des composants essentiels des vélos et des motos, contribuant à un changement de vitesse en douceur, à une transmission de puissance efficace et à une amélioration des performances globales. Qu'il s'agisse de systèmes de dérailleur, de systèmes de transmission par courroie, de systèmes d'embrayage ou de systèmes de transmission variable, les poulies jouent un rôle essentiel dans l'amélioration de la fonctionnalité et de l'expérience de conduite de ces véhicules.

Can you explain the basic principles of pulley mechanics?

Pulley mechanics are based on a few fundamental principles that govern the operation of pulley systems. Here's an explanation of the basic principles:

1. Mechanical Advantage: The primary principle of pulley mechanics is mechanical advantage. A pulley system allows for the multiplication of force applied to the rope or belt. By distributing the force over multiple segments of the rope or belt, the load becomes easier to lift or move. The mechanical advantage gained depends on the number of pulleys used in the system. The more pulleys in the system, the greater the mechanical advantage.

2. Force Transmission: When a force is applied to one end of the rope or belt, it creates tension that causes the pulley to rotate. As the pulley turns, the force is transmitted to the load attached to the other end of the rope or belt. This force transmission allows for the movement and manipulation of objects in pulley systems.

3. Directional Change: One of the key principles of pulley mechanics is directional change. A pulley system enables the operator to change the direction of the applied force. By redirecting the force along a different path, a pulley system allows for force to be exerted from a more convenient or advantageous position. This directional change is particularly useful in situations where the force needs to be applied vertically, horizontally, or at an angle.

4. Conservation of Energy: Pulley mechanics also adhere to the principle of conservation of energy. The work done on the load by the applied force is equal to the work done against the load's weight. Through the pulley system, the input force is transformed into an output force that moves or lifts the load. The energy input and output remain the same, but the pulley system allows for the distribution and transformation of forces to achieve the desired mechanical advantage.

5. Speed and Torque Conversion: Pulleys can also be used to convert speed and torque in mechanical systems. By varying the size of the pulleys or using pulleys of different diameters, the rotational speed and torque can be adjusted according to the requirements of the system. This speed and torque conversion allows for the optimization of power transmission and the matching of different rotational speeds between input and output components.

6. Multiple Pulley Systems: Pulleys can be combined in systems to achieve increased mechanical advantage or to create complex motion patterns. In systems with multiple pulleys, such as block and tackle arrangements, the load is distributed over several segments of rope or belt, further reducing the effort required to lift heavy objects. These systems are often used in cranes, elevators, and other applications where heavy lifting is necessary.

These basic principles of pulley mechanics form the foundation for the understanding and application of pulleys in mechanical systems. By harnessing mechanical advantage, force transmission, directional change, conservation of energy, and speed/torque conversion, pulley systems provide a versatile means of lifting, moving, and manipulating loads in various applications.

éditeur par CX