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6301 bearings of secret service


25th June 2017 Bearing products 0 Comments

Hangzhou Europe looks forward to the bearing Co., Ltd.
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Antifriction bearing (rollingbearing) It is the slip friction between axle and axial seat that will operate that turns into rolling friction, thus reduce a kind of delicate mechanical assembly of the friction loss. The antifriction bearing is generally made up of outer lane, the inner circle, rolling element and retainer. The antifriction bearing is generally made up of inner circle, outer lane, rolling element and part of retainer four, the function of the inner circle is to cooperate with axle and rotate together with axle; The function of the outer lane cooperates with pedestal, play a supporting role; The rolling element is the with the assistance of is homogeneous in the retainer to distribute the rolling element between inner circle and outer lane, its magnitude of shape and usability and life-span of the quantity direct influence antifriction bearing; The retainer can make the rolling element distributed evenly, prevent the rolling element from lossing, lead the rolling element to rotate and play a lubricated role.


Advantage
The ball bearing of major groove has a representative antifriction bearing most, have wide use range. Suitable for the operation of the even extremely high rotational speed of the high rotational speed, and very durable, do not need to safeguard frequently. The coefficient of friction of this kind of bearing is small, the terminal rotational speed is high, simple in construction, make low cost, it is apt to reach the great to make precision. Dimensional range and form change variously, apply to trades such as accurate instrument, electrical machinery, car, motorcycle and general machinery with low noise,etc., use the most extensive kind of bearing in the mechanical industry. Mainly bear radial load, can also bear a certain amount of axial load.


The sealing of the bearing can be divided into self-carrying sealing and two kinds of other cryptographic sealing. The so-called bearing self-carrying is sealed to make bearing into the one with the sealing property device. For instance the bearing brings the dust cap, seal ring. Such sealed space usage is very small, it is convenient to install and dismantle, the fabrication cost is lower too. The characteristic device of cryptographic sealing, is installing inside such as the end cap to make into the gland with various characteristics outside what is called bearing. Cryptographic sealing divide into non-contact type seal and contact-type the intersection of sealing and two again outside the bearing. Non-contact type among them to seal and suitable for high-speed and high-temperature occasion, different structural styles such as there are gap type, maze type and gasketting type. Contact-type to seal suitable for, working condition of low speed, a commonly used one have the intersection of felt and seal, the intersection of leather cup and the intersection of person who seal and structural style.
According to the operating condition of the bearing and requirement for sealed intensity of the work environment, often use various forms of seal in the engineering synthetically, in order to reach the good sealing effect. Should consider the following several kinds key factor about the choice of cryptographic sealing outside the bearing:
Bearing lubricant and kind( Grease and lubricating oil) ;
The work environment of the bearing, the magnitude of the space usage;
The supporting structure advantage of the axle, allow the angle deflection;
Sealed external circular velocity;
Operating temperature of the bearing;
Manufacturing cost.










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