Product Description


The type of  deep groove ball Bearing 6918 component resources used  in automobile, tractor, machinery, motor, drinking water pump, agricultural CZPT and textile equipment. Its wide software, basic design and style, non – separation, suited for substantial – velocity, reliable procedure, low maintenance charges.The tight regularity amongst deep raceway and groove and ball enables deep raceway ball bearings to stand up to axial masses in equally instructions in addition to radial masses.

Product Parameters

Packaging & Shipping 

About us

HangZhou Kent bearing firm was set up in 2003 and is 1 of the leading bearing makers and exporters in China. Kent specializes in the layout and production of high precision, high velocity and reduced noise  groove ball bearings and pillow block bearings. At present, the Corporation has far more than 1,000 employees, a fixed property of 2 billion yuan, and generates 250 million sets of bearings each year. The Corporation’s products are extensively employed in much more than 50 countries and locations under 2 impartial manufacturers, namely “BUGAO” and “NBKT”.

Analysis and Improvement

Since 2003, the Company has set up a Study & Advancement Heart geared up with multiple laboratories employed for precision measurement, mechanical screening, lifespan tests, and physicochemical testing, to continuously upgrade its expertise and CZPT its producing common and product’s precision. Our workshops are put in with a collection of sophisticated numerically-managed, grinding and assembly products that make use of centralized CZPT and CZPT systems. Together with the manufacturing products suppliers, we designed these grinding, extremely-precision, completely automatic built-in manufacturing strains, and own the mental home rights. The precision degree of the products are at P5 level and earlier mentioned, with sounds degree CZPT Z4, V4 and over. Some of our assignments have exceeded the thirty% precision reserves. Our goods are commonly utilized in electric motors, automobiles, motorcycles, family appliances, textile, electric instruments and drinking water pump products industries, each locally and globally.

Why pick us?
▄ HangZhou Kent bearing Co.,Ltd proven in 2003, has been targeted on higher precision and lower sounds deep groove ball bearing investigation and manufacturing. Engaged in international trade for 16 years, we give products for numerous industrial fields. We connect critical to global creation, Not only gained wideapresd praise in the domestic market, but also CZPT the recognition of foreign market place, this sort of as European,Southeast Asian and Africa industry.
▄ The company has far more than 20 assembly strains, and by means of ISO9001:2000 good quality management system certification, has a professional complex and services group, technological staff proportion of much more than thirty%. More than the a long time, we have been adhering to the use of substantial-finish uncooked materials creation, from the very first to each and every phase, with excellent product growth capabilities and rigorous high quality handle, we continue to increase the item line and application variety.
▄ To learn from the sophisticated degree at home and overseas, to develop their personal high-quality bearings, is the CZPT pursuit of Kent bearing business. Uphold the “True high quality is much more sturdy, enable the bearing move a lot more quieter”
enterprise philosophy, we have gained many buyers very good praise.
▄ Good Guarantee we just take buyer pleasure and product quality as the very first priority for us, we supply reliable warranties and excellent soon after-sales providers.

1.Q: Are you a factory or trading organization?
    A: We are manufacturing facility specialised in producing and exporting bearings.
2.Q: Where is your factory positioned? How can I visit there?
A: Our manufacturing facility situated in HangZhou county, HangZhou metropolis . You can fly to HangZhou Lishe International Airport directly. All our buyers, from home or overseas,are warmly welcome to visit our manufacturing unit.   
three.Q: Do you supply samples ? It is free charge?
A: Of course, we could offer you the sample for free of charge charge but do not pay the price of freight.
4.Q: What is your main solution?
A: We are creating 10 sequence and whole about 100 sorts of bearings.
5.Q: What is the MOQ for bearings?
    A: Our MOQ is 1000 pieces.

Make contact with us

Resources Utilized in Bearings

If you are not acquainted with the kinds of bearings, you could be interested in understanding more about the supplies utilised to manufacture them. Here’s a search at what every single type of bearing is produced of, how it really is used, and how significantly they price. To discover the right bearing for your application, it’s crucial to pick a quality lubricant. The materials utilised in bearings are identified by their type and apps. Deciding on the right lubricant will lengthen its existence, and safeguard your machine’s parts from injury and premature put on.

Supplies employed in bearings

Bearings are made from a variety of materials. Stainless metal is a typical materials used for the parts of bearings. It has a increased content material of chromium and nickel. When exposed to oxygen, chromium reacts with it to form chromium oxide, which provides a passive movie. For larger temperatures, teflon and Viton are also used. These components provide exceptional corrosion resistance and are typically preferred by makers for their special qualities.
Stainless steel is yet another substance used in bearings. AISI 440C is a higher-carbon stainless steel generally utilized in rolling-make contact with bearings. It is broadly utilised in corrosive environments, especially in purposes where corrosion resistance is far more critical than load potential. It can also be heat-taken care of and hardened to 60 HRC, but has reduced exhaustion daily life than SAE 52100. Stainless metal bearings may possibly have a 20-forty% cost high quality, but their superior overall performance is really worth the added money.
Graphite and molybdenum disulfide are two of the most widespread resources utilized in bearings. Even though graphite is a well-liked content in bearings, it has really inadequate corrosion resistance and is unsuitable for purposes where oil or grease is essential. Graphite-based mostly composite supplies are an additional alternative. They merge the benefits of equally graphite and ceramic materials. A selection of proprietary components have been developed for higher-temperature use, such as graphite and MoS2.
Wood bearings have been about for generations. The oldest ones utilised wood and Lignum Vitae. These resources ended up lightweight, but they have been exceptionally strong and tough. Wood bearings were also lubricated with animal fats. In the course of the 1700s, iron bearings have been a well-known decision. In 1839, Isaac Babbitt invented an alloy containing difficult metallic crystals suspended in a softer metal. It is regarded a metallic matrix composite.

Programs of bearings

Bearings are utilised in many distinct industries and systems to assist aid rotation. The metallic surfaces in the bearings assistance the weight of the load, which drives the rotation of the device. Not all masses implement the exact same quantity of drive to bearings, nevertheless. Thrust and radial hundreds act in distinctly diverse ways. To greater recognize the diverse employs of bearings, let us look at the a variety of types of bearings. These versatile gadgets are vital for many industries, from vehicles to ships and from design to industrial procedures.
Cylindrical roller bearings are developed to support large loads. Their cylindrical rolling element distributes the load above a greater location. They are not, however, suited to dealing with thrust hundreds. Needle bearings, on the other hand, use small diameter cylinders and can match into tighter areas. The benefits of these sorts of bearings are several, and a lot of foremost producers are now leveraging the Industrial Web of Things (IIoT) to develop linked intelligent bearings.
As a energy era industry, bearings play an vital position. From turbines to compressors, from turbines to pumps, bearings are essential components of products. In addition to bearings, these elements support shift the equipment, so they can operate appropriately. Usually, these parts use ball bearings, although some roller bearings are employed as well. In addition to currently being productive and durable, these varieties of bearings also have a tendency to be developed to satisfy stringent interior clearance needs and cage design and style demands.
In addition to bearings for linear movement, bearings can also bear the excess weight of a rotary component. Dependent on the application, they can be created to decrease friction in between moving elements. By constraining relative movement, bearings are used to decrease friction inside a provided application. The best-developed bearings lessen friction in a given software. If you are in the marketplace for a new bearing, NRB Industrial Bearings Constrained is an outstanding resource to get started your research.

Sorts of bearings

The variety of bearings you choose will have a substantial effect on the efficiency of your machinery. Using the appropriate bearings can enhance efficiency, precision, and service intervals, and even decrease the cost of getting and operating equipment. There are numerous diverse kinds of bearings to decide on from, including ball bearings and flexure bearings. Some kinds use a fluid to lubricate their surfaces, whilst other individuals do not.
Plain bearings are the most common sort of bearing, and are utilised for a range of purposes. Their cylindrical design and style makes it possible for for a relatively sleek movement. Frequently manufactured of copper or other copper alloy, they have low coefficients of friction and are typically employed in the development industry. Some kinds of plain bearings are also available with a gudgeon pin, which connects a piston to a connecting rod in a diesel motor.
Magnetic bearings are the most recent kind of bearing. They use long lasting magnets to generate a magnetic area around the shaft with out necessitating any electricity. These are difficult to design and style, and are nonetheless in the early phases of improvement. Electromagnets, on the other hand, require no power but can carry out really higher-precision positioning. They can be really sturdy and have a extended service existence. They are also lightweight and straightforward to mend.
Another kind of bearing is needle roller. These are produced of slim, lengthy, and slender cylinders that are used in a range of apps. Their slender size is perfect for a room-constrained application, and their tiny profile makes it possible for them to suit in tight spots. These types of bearings are usually used in automotive programs, bar stools, and digital camera panning units. They have several rewards in excess of ball bearings, such as the capacity to deal with hefty axial masses.

Value of bearings

A extensive selection of elements influence the price of aerospace bearings, such as the bearing content and its volatility. Companies normally use higher-grade metal for plane bearings, which are very afflicted by fluctuations in the steel price tag. Authorities procedures also perform a element in the variation in trade price tag. The implementation of COVID-19 has altered the marketplace dynamics, creating an unsure outlook for provide and need of aerospace bearings. New trade norms and transportation constraints are envisioned to hamper the expansion of this industry.
Demand from customers for aerospace bearings is mostly pushed by aircraft manufacturers. In North The united states, plane manufacturers should meet up with incredibly high standards of weight, overall performance, and top quality. They also should be lightweight and price-effective. This has resulted in a rising cost of aerospace bearings. The market for aerospace bearings is anticipated to grow at the optimum CAGR over the next few many years, driven by rising investments in defense and aerospace infrastructure throughout Asia-Pacific.
Hub assemblies are also costly. A wheel hub will expense in between $400 and $five hundred for one particular set of bearings. In addition to this, the speed sensor will be incorporated. The regular value of wheel bearings is in between $400 and $five hundred for one facet, which includes labor. But this price tag range is a lot lower if the bearing is a replacement of an complete wheel assembly. It is still worth noting that wheel hub bearings can be obtained individually for a decrease cost.
Alternative of one particular or two wheel bearings will count on the product and year of the car. For a little car, a single rear wheel bearing can value among $a hundred ninety and $225, whereas two front wheel hubs can expense upwards of $1,000. Labor and elements prices will vary by place, and labor expenses may possibly also be protected beneath some guarantee programs. If you decide to have it accomplished oneself, be certain to question a number of stores for estimates.

Inspection of bearings

To sustain bearing efficiency and stop incidents, periodic inspections are essential. In addition to guaranteeing trustworthiness, these inspections enhance productiveness and efficiency. Standard servicing consists of disassembly inspection, replenishment of lubricant and checking procedure standing. Listed here are some widespread approaches to perform the required inspections. Preserve studying to find out how to keep bearings. Following disassembly, you need to clean the components thoroughly. Guarantee that the bearings are totally free of burrs, debris, and corrosion.
Ultrasound technological innovation is an superb tool for checking gradual-velocity bearings. Most ultrasound instruments supply vast-ranging sensitivity and frequency tuning. Ultrasound can also be utilized to check bearing sound. Ultra-gradual bearings are generally large and greased with large-viscosity lubricant. Crackling appears point out deformity. You can also pay attention for abnormal sounds by plugging a vibration analyzer into the machine. When the machine demonstrates abnormal sounds, routine extra inspections.
Ultrasonic inspection includes making use of an ultrasound transducer to evaluate the amplitude of sound from a bearing. It is successful in early warnings of bearing failure and helps prevent more than-lubrication. Ultrasound inspection of bearings is a value-efficient remedy for early diagnosis of bearing issues. In addition to being a dependable instrument, ultrasonic screening is electronic and effortless to implement. The subsequent are some of the advantages of ultrasonic bearing inspection.
Dynamic high quality evaluation involves the use of a specific fixture for measuring bearing deformations underneath reduced shaft pace and light radial load. The size of the fixture influences the price of the deformations. A fixture ought to be sized between the diameter of the sensor and the roller to make sure optimum precision. The outer deformation signal is much more delicate with a greater sensor diameter. A vibration-acceleration sensor is used for the distinction take a look at.

China OEM 6918 69 Series Deep Groove Ball Bearing for Gearbox by Cixi Kent Bearing Manufactory     with Great qualityChina OEM 6918 69 Series Deep Groove Ball Bearing for Gearbox by Cixi Kent Bearing Manufactory     with Great quality