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introduction：Probably a lot of people dont know，How a refrigerator works
2017-06-01 Reading quantity 1448
introduction：A lot of high-speed rotating mechanisms，For full lubrication and reduced friction use several sliders in a circle，For example, some high-speed grinding machine grinding head spindle。People also call it split bearing。Large diameter operating systems also use split bearings，Maybe not a slider，Its a number of rollers。 ...
2017-05-31 Reading quantity 220
introduction：1、Quasi-constant velocity universal joint and constant velocity universal thrust ball bearing joint： The common quasi-constant velocity universal joint has two kinds of double coupling and three pin shaft，Their working principle is the same as the principle of double cross shaft universal joint to achieve constant speed transmission。 The double universal joint is actually a set of double ten bearing type universal joint constant speed transmission device which reduces the length of the drive shaft to the minimum，The double fork is equivalent to the transmission shaft and the universal joint fork with both ends in the same plane。When the Angle of intersection between the output shaft and the input type query shaft is small，It makes the two axial angular velocities nearly equal，The intersection of the two axes on the arc is very close to the above middle vertical line，makeαSelf-aligning roller bearings1withα2 The difference is small，Therefore, it is called the double universal joint quasi-constant velocity un
2017-05-31 Reading quantity 302
introduction：In the grinding of linear bearings，Grinding wheel and workpiece contact zone，Consuming a lot of energy，Generate a lot of grinding heat，Resulting in local transient high temperature in the grinding zone。The theoretical formula of heat transfer from linear moving heat source is used、The instantaneous temperature under experimental conditions is calculated or measured by infrared and thermocouple methods
2017-05-31 Reading quantity 225
introduction：4Class bearings are also called needle roller bearings，Relative to its diameter，The roller is thin and long。This roller is called a needle roller。Despite having a smaller cross-section，The bearing still has a high load bearing capacity，Needle roller bearings are fitted with long thin rollers（Roller diameterD≤5mm，L/D≥2.5，LIs the length of the roller），Thus the radial structure is compact，Its inner diameter and load capacity are the same as other types of bearings，Minimum outside diameter，Especially suitable for support structures with limited radial mounting size。 4Class bearing capacity is large，Suitable for support structures with limited installation size，The journal surface is hardened as a rolling surface，The bearing is fitted into the seat hole with a press fit，No more axial positioning is required。Bearings should be injected with appropriate grease before installation，Under normal circumstances，No more lubrication after assembly BKType B bearings are used in bearings without an extended end of the
2017-05-31 Reading quantity 219
introduction：Precision reducer manufacturers are very many，Each has its own merits，Different kinds of different quality，Different countries，Different brands，What kind of precision reducer you want to pick。
2017-05-31 Reading quantity 216
introduction：Bearing steel pipe refers to hot rolled or cold rolled（Cold drawing）Seamless steel pipe，For the manufacture of ordinary roller bearing rings。The outer diameter of the steel pipe is25-180millimeter，The wall thickness is...3.5-20millimeter，It can be divided into ordinary precision and higher precision。Bearing steel is used to make ball bearings、Steel for rollers and bearing rings。Bearing at work is subjected to extreme pressure and friction，Therefore, bearing steel is required to have high and uniform hardness and wear resistance，And a high elastic limit。Uniformity of chemical composition of bearing steel、Content and distribution of nonmetallic inclusions、The distribution of carbides and other requirements are very strict，It is one of the most demanding steel grades in all steel production。
2017-05-31 Reading quantity 185
introduction：abbaLinear guide official network introduction，abbaIt is a selection criterion for the middle and high-end market，Speak ofabba，This might be a little strange to you，Here is a little popularization for you。
2017-05-31 Reading quantity 421
introduction：Linear bearing packaging characteristics are as follows：1)Work circulation links are complex 2)Various packaging forms3)The performance requirements of packaging are high
2017-05-31 Reading quantity 213
introduction：Three-point cutter and seven-point cutter，If you want to dry the lathe, you have to make sure“weapon”Take advantage of，Another is to practice more，excircle、Inner bore、Length、taper、Thread bonding exercises，Then there is the turning exercise of complex parts，Such as：Internal and external keystone thread，worm，Slender axis，Thin wall sleeve, etc，And learn to use the center frame and knife holder。
2017-05-31 Reading quantity 2303
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