China OEM 12*50*13mm 6301RS Bearing Steel Bearings, U Grooves V Round Bottom 5cm Pulley near me factory

Product Description

Product Description
How to choice ?
Choose The Right Bearing for Your Application. 2RS - Double Rubber Seal - Suitable for Harsh External Environments, Low Rotate Resistance. ZZ - Double Metal Seal / Dust Cover - Suitable for Good External Environment, Not Rotate Resistance. Open - Usually Applied to The Inside of Machinery, Not Rotate Resistance.

Seals Type: ZZ, RS, RZ, OPEN
Technical Information

60  Series  Deep  Groove  Ball  bearings   Technical   Paramrter
Bearing NO. d/mm D/mm B/mm Dynamic/Cr Staric/Cor Grease r/min Oil r/min  Unit Weight/KG
6006 30 55 13 8.3 8.3 13000 15000 0.116
6007 35 62 14 10.3 10.3 12000 14000 0.155
6008 40 68 15 11.5 11.5 10000 12000 0.19
6009 45 75 16 15.1 15.1 92000 11000 0.237
6571 50 80 16 16.6 16.6 8400 9800 0.261
6011 55 90 18 21.2 21.2 7700 9000 0.388
6012 60 95 18 23.2 23.2 7000 8300 0.414
6013 65 100 18 25.2 25.2 6500 7700 0.421
6014 70 110 20 31 31 6100 7100 0.604
6015 75 115 20 33.5 33.5 5700 6700 0.649
62  Series  Deep  Groove  Ball  bearings   Technical   Paramrter
6204 20 47 14 12.8 6.65 16000 18000 0.106
6205 25 52 15 14 7.85 13000 15000 0.128
6206 30 62 16 19.5 11.3 11000 13000 0.199
6207 35 72 17 25.7 15.3 9800 11000 0.288
6208 40 80 18 29.1 17.8 8700 10000 0.366
6209 45 85 19 32.5 20.4 7800 9200 0.398
6210 50 90 20 35 23.2 7100 8300 0.454
6211 55 100 21 43.5 29.2 6400 7600 0.601
6212 60 110 22 52.5 36 6000 7000 0.783
6213 65 120 23 57.5 40 5500 6500 0.99
6214 70 125 24 62 44 5100 6000 1.07
6215 75 130 25 66 49.5 4800 5600 1.18
63  Series  Deep  Groove  Ball  bearings   Technical   Paramrter
6304 20 52 15 15.9 7.9 14000 17000 0.144
6305 25 62 17 21.2 10.9 12000 14000 0.232
6306 30 72 19 26.7 15 10000 12000 0.366
6307 35 80 21 33.4 19.3 8500 10000 0.457
6308 40 90 23 40.5 24 7800 9200 0.63
6309 45 100 25 53 32 7000 8200 0.814
6310 50 110 27 62 38.5 6400 7500 1.07
6311 55 120 29 71.5 45 5800 6800 1.37
6312 60 130 31 82 52 5400 6300 1.73
6313 65 140 33 92.5 60 4900 5800 2.08
6314 70 150 35 104 68 4600 5400 2.52
6315 75 160 37 113 77 4300 5000 3.02

Brand Name: MASEN / OEM

Clearance : C2 / C0 / C3 / C4 / C5

Tolerance : ABEC1 (P0) / ABEC3(P6) / ABEC5(P5) / ABEC7(P4) / ABEC9 (P2)

Vibraztion : Z1V1 / Z2V2/ Z3V3

Packing : 1)Tube packing + Neutral Carton + Wooden pallet

                 2) Acoording to customer's requirement

Company profile

Workshop A
Workshop B(dust-free workshop)

Q1 What is your terms of payment?

A1: For small order,directly pay to us after order confirmed. You pay us online after we make the trade assureance order and send payment link to you or you can pay by paypal.

A2: For big order,we use T/T, 30% in advance, balance paid before shipment.


Q2 What is your terms of delivery?

A: FOB ZheJiang ,HangZhou, HangZhou, HangZhou. Or CIF/FCA/DDP


Q3 How about your delivery time?

A: Generally, for stock goods, we send the goods as soon as we get your payment. for big order, we should consider the detailed request,then decide a time.


Q4 Can you produce according to the samples?

A: Yes, we can produce by your samples or technical drawings.


Q5 What is your sample policy?

A: We can supply the sample if we have ready parts in stock,sample is free of charge, but customers have to pay the freight cost.


Q6 How do you make our business long-term and good relationship?

A1: We keep good quality and competitive price to ensure our customers' benefit;

A2: We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

Our Service
1.One year warranty for most of our products;
2.We will arrange delivery of the goods on time:
3.Within the warranty period, we will bear all the qulity problem of our produts;
4.Beyond the warranty period, we will despatch the replacement parts to help fix the products;
5.Without any problem, we will gain the feedbacks of our products to help improve better products.
Feedback & Copperation to Win the Future

If you are satisfied with our products, please give us 5 stars.

Overview of Different Types of Pulleys

A pulley is a wheel mounted on a shaft or shaft. Its purpose is to facilitate the movement or change of direction of the cable or taut rope, and to transmit power between the cable and the shaft. Pulleys are typically used for lifting, winding or forklift applications. If you are building your own pulley system, the following design and installation considerations should be followed. This article will give you an overview of the different types of pulleys.

Pulley System Mechanics

There are many different ways to utilize the mechanism of the pulley system. The most basic pulley system consists of a fixed wheel and a support frame. Both components are connected by ropes or cables used to support the load. A pulley system is effective when the force required to lift the load is less than the weight of the object being lifted.
One way to use a pulley system is to suspend a block with a mass of 0.80 kg on a fixed pulley. Then another person can hang a bucket weighing up to 40kg. The weight of the bucket is transferred to the fixed pulley. The rope is attached to the pulley by a loop or sling. The rope will spin and pull on the barrel or block.
The pulley system is also an important tool for lifting heavy objects. Pulleys are often used in construction equipment to make lifting heavy objects easier. Gun tackles, yard tackles, and stationary tackle systems are common examples of these devices. They use the mechanical advantage of the design to guide the force that lifts the object. If you want to learn more about pulley systems, visit Vedantu. This website will provide you with a full description of the mechanism and its application.

Types of pulleys

Many different types of pulleys are used to lift heavy objects. They change the direction of the force and are an integral part of the cable system. Therefore, pulleys can move large and heavy objects more easily. However, before buying a pulley, you should have an idea of ​​the benefits it brings. Below are some of the most common uses for pulleys.
Conical Pulley: Consists of several small conical pulleys connected to each other. The larger base of 1 pulley is used to guide the force. Round pulleys are used in the same way as step pulleys. They are widely used in industry and can be purchased at any hardware store. Pulleys are a huge investment, and the benefits they provide far outweigh the cost.
Movable Pulls: These are similar to their names, but work by allowing objects to move with the pull. Their movable parts are attached to the object to be lifted. They are also ideal for lifting heavy loads and can be found in utility elevators and construction cranes. They are also used in many other industries. They can also be made of wood, plastic or metal. The type of pulley you use depends on its intended use.

Mechanical Advantages of Pulley Systems

A pulley system is a simple machine that reduces the effort required to lift heavy loads. This mechanical advantage is proportional to the number of loops. For example, if you have a single rope loop, you must apply equal force to lift the weight. When you add another rope loop, you can lift heavier weights just by applying the same force. Therefore, a pulley system is an excellent way to use gravity to your advantage.
Mechanical advantage is a measure of the effectiveness of a pulley system. This ratio of force to work is called the mechanical advantage. In other words, if the rope system has a large mechanical advantage, it means that it requires less force to lift heavier loads. This advantage is usually measured in kilograms and is the same for all pulley systems. In general, the greater the mechanical advantage, the less effort is required to lift the load.
The mechanical advantage of a pulley system is that a single movable pulley requires half the force to lift an object than a single fixed pulley. Assuming frictionless bearings, the MA of a single pulley system is 2, similar to the MA of a single lever. A single pulley travels twice as much as it takes to move heavy objects manually.

Considerations when designing and installing a pulley system

The capacity of the pulley depends on the type and diameter of the cable. Besides its diameter, its sheath should also support it well. The basic function of the pulley is also important. However, most people tend to ignore the pulley selection process, resulting in ineffective load-pull capabilities. To avoid such problems, different parameters must be carefully considered during design and installation.
During the design and installation of the pulley system, the ratio of the cable diameter to the largest pulley diameter must be considered. Those who work in the industrial sector will have an idea of ​​this ratio. The greater the D:d ratio, the greater the capacity of the cable to withstand the load. The best way to ensure secure design is to take the right information and use it to design a system that is both robust and secure.
When designing a pulley system, it is important to remember that the pulley needs to have enough power to operate safely. In addition to horsepower, the belt should have sufficient elongation to absorb shock loads. If the elongation of the belt is very small, it is very likely that the teeth will be sheared or broken, causing serious damage to the system. Extensive belt sag should be compensated for by offsetting the driven pulley. Finally, the frame supporting the pulley should be rigid. Otherwise, the non-rigid frame will cause center distance and tooth skipping changes.

Add more pulleys to the system

Adding more pulleys to the spool might have some effect. The friction between the rope and the pulley increases with the number of pulleys, which in practice limits the number of spools. The best solution is to combine the pulleys into 1 housing. If the load is small enough, adding a few pulleys probably won't make a difference.
Using multiple pulleys allows a single load to be lifted with half the force required. The longer the rope, the greater the mechanical advantage. In fact, a spool can withstand a load of 100 N. Additionally, adding more pulleys quadrupled the mechanical advantage. In this case, a single 100 N load would require a force of 25 Newtons.
When the rope is used, it stretches as the weight of the object increases. This will make the rope longer, increasing its length and increasing the distance over which the load can be lifted. Eventually, the rope will break and the lifted object will fall. Then you will have to buy a new rope. It may seem like an expensive proposition, but it pays off in the long run.

cast iron pulley

Cast iron pulleys are the most popular choice among industrial users. They are made of solid cast iron and usually cost very little. Their rims are held in place by a mesh that extends from a central boss. They also have spokes and arms that hold them in place. These pulleys are ideal for a variety of applications including fan belts, compressors and conveyors.
V-groove drive pulleys are ideal for general purpose pulleys. It has an inner diameter of 1 inch and is commonly used in feeders and ventilation curtain systems. Its steel straps prevent rust and ensure it meets or exceeds industry standards. 3-1/2" cast iron pulleys are also available. In addition to the V-groove drive pulley, there are similar pulleys for power transmission. The V-groove drive pulley is powder coated for added durability.
The cross section of the arm is elliptical, with the long axis twice as long as the short axis. The radius of the arm is equal to the diameter of the pulley. The thickness of the arm is a key factor to consider when purchasing a pulley. If you're not sure which material you need, you can always consider wooden or steel pulleys. They are lighter and have a higher coefficient of friction than metal pulleys.

timing pulley

Plastic timing pulleys have many advantages over steel timing pulleys. On the 1 hand, they are lightweight and corrosion resistant, making them ideal for applications that do not require high torque and tensile strength. Another benefit is their resistance to high temperatures. Plastic timing pulleys are ideal for applications involving flammable gases, solvents or particles. They can last for many years. For more information on the different types of plastic timing pulleys.
Vertical shaft drives require flanged timing pulleys. For large span drives, at least 1 of these pulleys must be flanged. The flange provides a secure connection to the shaft and prevents ratcheting of the timing belt. Finally, HTD timing belt teeth prevent timing belt ratcheting. These teeth need a large enough space to be seated. However, they can also cause a backlash. These pulleys are not suitable for applications where positional accuracy is critical.
Timing belt systems are designed to avoid such problems. The drive shaft and the driven shaft are aligned with each other. The pulleys are located on different planes and are connected by pitch lines. The pitch line of the timing pulley coincides with the pitch line of the belt. These pulleys are also easier to implement and maintain. It is better to use a synchronous system because the resulting gear system emits less noise than other systems.

China OEM 12*50*13mm 6301RS Bearing Steel Bearings, U Grooves V Round Bottom 5cm Pulley   near me factory China OEM 12*50*13mm 6301RS Bearing Steel Bearings, U Grooves V Round Bottom 5cm Pulley   near me factory