Bearing accuracy of classification

Including the dimensional precision and accuracy of precision how bearing rotating accuracy, dimensional accuracy is bearing a request when bearings are mounted on shafts or project, it includes inside diameter, outside diameter, width, chamfer dimension TOLERANCE or permitted. Geometric accuracy including diameter deviation, average diameter, outside diameter deviation and average diameter ring width deviation in single radial plane. When the rotation accuracy is rotating pendulum, including the inner ring and outer ring radial swing and the axial runout, inner ring side face verticality and diameter tolerance range. Bearing precision grade from common grade 0 to 6, 5, grade 4 and grade 2, in turn, table 1 below is China GB307 and comparison with other standards. 轴承公差包括尺寸公差和旋转精度,尺寸公差要求当轴承安装在轴或inhousings。 它包括孔/ outerside直径偏离基本的、内/外环宽度偏差在单一径向平面上。 旋转toleranceincludes组装轴承内圈的径向和轴向跳动外,内圈参考fcace偏心孔和外cylindricalsurface跳动与外部参考的脸。 公差类范围从普通类0到6 5 4和2,从低到高,下面的表1规定的公差类中国GB307 itscomparison和其他标准。 Some countries bearing precision grade table COMPARISON OF how the CLASS national standard precision grade A0A3A5A4A2 CHINAGB3070 China ( G） 6 ( E) 5 ( D） 4 ( C) 2 ( B） German GERMANYDIN ISOISO49206542 620/2 p0p6p5p4p2 USAANSI B3 in the United States. 14 abec1abec3abec5abec7abec9 CLEARANCE, CLEARANCE of bearing CLEARANCE is to show the bearing is not installed on or before the bearing axis, fixed inner ring or outer ring side, not yet been fixed ring radial or axial amount of displacement of the unfixed ring when it move. According to the moving direction, can be divided into radial clearance and axial clearance. 轴承间隙意味着解脱的戒指的价值位移当itmoves针对固定环径向或轴向的轴上的轴承ismouted之前或在一个住房。 根据运动方向,itfalls径向间隙和轴向间隙。 Single row deep groove ball bearing RADIAL CLEARANCE of the RADIAL CLEARANCE bearing inside diameter ( d） Mm C2COC3C4 than over to include incl Min Min Max Max Min Min Max Max Min Min Max Max Min Min Max Max61007213823142910180931811251833182401052013282036243011152013232341304011162015332846405011162318363051 VIBRATION VIBRATION of bearing VIBRATION is refers to the bearing parts changed over time, in addition to elastic deformation and bearing function required for all other deviation theory position of movement, it is divided into VIBRATION velocity ( dB) And the vibration velocity ( μm/S) 。 Vibration acceleration points Z, Z1, Z2 and Z3 level 3 assessment, including Z level as the basic level, Z1, Z2 and Z3 said in turn bearing vibration level is low to high, specific requirements are shown in table 3. Specific requirements are shown in table 4. Due to the vibration velocity measurement can appear more bearing level of processing and reflect the inner quality of bearing, and therefore the most common. Our company in the control of vibration velocity values at the same time, according to the requirement of the motor bearing, also carry out strict control for bearing the different sound. 轴承振动轴承部件的弹性变形意味着varieswith时间和所有其他运动偏离理论地位exceptthat轴承功能所必需的。 它有两种模式 加速度( dB) andvelocity( μm/S) 、振动加速度是检查根据Z, Z4, Z2, andZ3值。 年级Z是根本,Z1, z2 Z3先后显示thevibration弗伦联盟低到高水平范围。 详细的要求,请参阅Table3。 Simlary viaration速度是检查/ V, V1、v2 V3. Grade V isfundamental, V1, V2& V3先后显示rangesfrom低到高的振动水平。 详情,请参阅Table4。 一般来说,速度检测优于加速度检查,它可以更反映轴承'manufacturing水平和轴承的内在质量。 虽然我们公司在对轴承振动速度值的控制,我们还携带outvigorous控制异常噪声测试根据torequirements轴承运行的电动机轴承质量。 A single bearing VIBRATION acceleration VIBRATION limits ( 加速度) LIMITES FOR SINGLE BEARING diameter series (dB BEARING inside diameter and diameter d 1) 直径系列( 1) The diameter of the series ( 2) 直径系列( 2) The diameter of the series ( 3) 直径系列( 3) MmZZ1Z2Z1Z2Z3Z1Z2Z31043423842393544403712444339433935454037154544404441364642381746444045413647423820474541464238484339254846424743404944413049474348444150454235514945504643524744405351465247445449454555534854494656514750575450555148575349 single bearing VIBRATION speed limit VIBRATION ( VELOCITY) LIMTES FOR SINGLE BEARING mu m/s BEARING nominal diameter VV1V2V3dmm low frequency low frequency band in the band mid band high frequency high band low frequency low band frequency band in the mid band high frequency high band low frequency low frequency band in the band mid band high frequency high band low frequency low frequency band in the band mid band high frequency high band10160120100140100859060505535 BEARING on an article: how to use a miniature motor BEARING and some matters needing attention next up: the classification and application of BEARING areas