A ball bearing is an engineering term referring to a type of rolling-element bearing which uses balls to maintain the separation between the moving parts of the bearing.
The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls. Usually one of the races is held fixed. As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were rotating on each other.
Ball bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races.
Compared to other bearing types, the ball bearing is the least expensive, primarily because of the low cost of producing the balls used in the bearing.
Angular Contact Ball BearingDeep Groove Ball BearingFlanged Ball BearingIndustrial Ball Bearing | Miniature Ball BearingPrecision Ball BearingSelf Aligning Ball Bearing |
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| NINGBO WTOO BEARING CO., LTD. - http://www.wtoobearing.com NINGBO WTOO BEARING CO., LTD. is a professional bearing manufacturer, supplier for high quality bearing, precision miniature ball bearing (representing high precision 608 bearing series, and other precision miniature ball bearing), monthly output 10 million, supplying to 30% market of vacuum cleaner motors in the world. We has been one of leading brands used in China’s well-known air conditioner motor, and international automobile parts. - [Read more] |
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| NSK Bearing Global - http://www.nsk.com NSK was founded in 1916 and produced the first ball bearings made in Japan. Since then, the company has spearheaded the development of bearings in Japan. NSK now offers a full range of bearings and sells them worldwide. - [Read more] |
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| Koyo Bearing-Koyo Seiko Co., Ltd. - http://www.koyousa.com <span class="bodytext2">Koyo Seiko Co., Ltd. and Toyoda Machine Works, Ltd. merged on January 1, 2006, and have made a new start as JTEKT Corporation. As a company centered on the automotive parts business that possesses a firm technological base cultivated through long years of bearing and machine tool manufacturing, JTEKT will aim to win the further trust and high expectations of customers and society.</span> - [Read more] |
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| INA Bearing Information - http://www.ina.com For decades, the Schaeffler Group's INA brand has stood for creative application solutions, great engineering and manufacturing expertise and a strong customer focus. Thinking outside the box, that is, taking new paths to develop ideas and think beyond barriers, is just as important now as it was when the company was first established. - [Read more] |
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| NEW CENTURY BEARING CO.,LTD. - http://www.sxabearing-manufacturers.com NEW CENTURY BEARING CO.,LTD. is one of the leading bearing manufacturers in China, which was established in 1987. The company is specialized in producing Deep Groove Ball Bearing, Stainless Steel Ball Bearing, Non-standard Bearing and all kinds of bearing components (including: bearing ring, shield, seal and cage). It's products are widely used in Electric Motors, Fishing Tackles, Various Household Appliances, Automobile, Power Tools, Mechanical Devices. - [Read more] |
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| SIFT BEARING CO.,LTD - http://www.siftbearing.com Professional supplier of SKF FAG NSK TIMKEN INA NTN bearings - [Read more] |
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INA Bearing-Schaeffler GroupFor decades, the Schaeffler Group's INA brand has stood for creative application solutions, great engineering and manufacturing expertise and a strong customer focus. |
Koyo Bearing InformationKoyo Seiko Co., Ltd. and Toyoda Machine Works, Ltd. merged on January 1, 2006, and have made a new start as JTEKT Corporation. |
NSK Bearing ProfileNSK was founded in 1916 and produced the first ball bearings made in Japan. Since then, the company has spearheaded the development of bearings in Japan. NSK now offers a full range of bearings and sells them worldwide. |
Four-point Contact Ball BearingsFour-point contact ball bearing is a type of single-row angular contact bearing, and it belongs to separable bearings. The steel balls contact the four points of ferrule, with a contact angle of 35°. The four-point contact ball bearing can be subject to radial load and axial load in any direction or radial and axial combination load. |
Angular Contact Ball BearingSingle-row angular contact ball bearing comprises an outer race, an inner race, a row of steel balls and a holder. This type of bearing can simultaneously subject to radial load and axial load. It can also be subject to pure axial load and operate in high-speed. Single-row angular contact ball bearing can only be subject to axial load from one direction. |
Ball Bearing FeaturesBall Bearing Features: Shield / closure,snap ring,Tolerance codes,Vibration level codes,Internal clearance codes, material, Cage, Lubrication |
Ball Bearing HistoryThe first patent was awarded to Jules Suriray,a Parisian bicycle mechanic,on 3 August 1869. |