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introduction：Deep groove ball bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。] The most representative rolling bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，Bring down
2014-12-18 Reading quantity 1582
introduction：bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]The parts are composed of rolling bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，To reduce the power transmission process
2014-12-18 Reading quantity 1577
introduction：1、IKOInfluence of bearing with journal and housing on radial clearance flange bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]The interference when matched with the journal and the box makes the inner ring expand and the outer ring shrink and the radial clearance decrease。Select fixed journal and bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）Be at
2014-12-18 Reading quantity 1606
introduction： Any electrical or electronic product that neglects the circuit protection design has hidden faults。Protecting your expensive equipment comes down to including control switches、The entire electrical system, including wires and power supplies, is protected，To avoid the occurrence of short circuit and excessive current。It is not difficult to determine the right circuit protection device for a specific application，But it does take some thinking。If electrical and electronic equipment is designed with loosely defined circuit protection devices，The equipment will be easily damaged by power shock and lead to catastrophic consequences of fire，conversely，If the specification is set too strict circuit protection
2014-12-18 Reading quantity 2972
introduction：Special term for gears 1、Tooth profile trimming（Tip relief of gear）（1） Partial crown trimming（At large）：It is to cut the tooth crown part into a slightly convex shape than the correct involute by a special processing method，Therefore, when the tooth surface is deformed by the transmission force，It mitigates possible interference with the interlocking gears，It can also reduce the noise during biting and increase the life span，Remarkable effect。But if the overdressing is like increasing the tooth shape error of the gear，It has adverse effect on gear bite。（2） Partial root trimming 2、Cutting drum teeth and cutting end teeth（Cowning、Relie
2014-12-18 Reading quantity 2887
introduction： Working process In a fluidized bed drying unit，The granular material is fed into the fluidized drying chamber continuously and quantitatively by the feeder，The cold air is heated by the heat exchanger and enters the bottom of the fluidized bed，The hot air is evenly distributed through the pressure distributing plate at the bottom，Pass through the material inside the bed，The material particles are suspended in the air flow，The material is highly dispersed，Form a fluid state，Form a certain thickness of the fluid layer。figuratively，Its like boiling water，Bubbles are constantly being created，Come to the surface。The fluid particles are uniformly mixed in the fluidized bed，And full contact with air flow，Intense heat and mass exchange occurs，Wet materials quickly dry and dehydrate
2014-12-18 Reading quantity 2975
introduction：CNC car program can be divided into programs to start、Program content and program end three parts。 The first part of the program The main definition of the program number，Pull out the parts machining coordinate system、Working tool，Starting spindle、Turn on the coolant, etc。 Maximum spindle speed limit definitionG50S2000，Set the maximum spindle speed to2000RPM，For CNC lathes，This is a very important directive。 Coordinate system definition if not specified，Numerical control system defaultG54Coordinate system。 Return reference
2014-12-18 Reading quantity 2975
introduction：SKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFThe group is headquartered in Gothenburg, Sweden，Is a leader in bearing technology and manufacturing。SKFBearings can be divided into sliding according to different specific structures and similarities and differences in working propertiesSKFBearing and rollingSKFbearing]The limit speed is the limit value at which no friction heat causing burns can be generated and continuous rotation can be achieved。SKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabri
2014-12-18 Reading quantity 1671
introduction：KOYObearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Although the quality and other aspects are better，But rolling bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft
2014-12-18 Reading quantity 1746
introduction：1）Set up the model，And tamp down the lower body。First fill in the appropriate amount of veil and back yarn for the first tamping，After tamping，Dredge the sand and place the two loose blocks exactly，Then fill in a small amount of veil，Tamp around the movable block，Then sand and tamp it down 2）Scrape off excess sand from lower box and turn over 3）Cut away the sand on the bottom parting surface that prevents drawing，Trim the parting surface，Scatter molding sand 4）Set up the upper sand box，（Have a positioning device），Put the straight gate and riser in the position required by the process 5）Fill the tamper with the right amount of veil、Back yarn，Secure the sprue and tamp it down for reinforcement，Then the first light and then heavy ramming up 6）
2014-12-18 Reading quantity 1571
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