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          公司新聞
          行業新聞


          地 址:江蘇省鎮江市東郊辛豐鎮辛豐路
          電 話:0511-83331866
          傳 真:0511-83331201
          郵 箱:info@rkbearing.cn
          網 址:www.bancgl.com

            新聞資訊
              
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          不銹鋼軸承的精度
          來源:ZJRK       時間:2010-9-12

          精度 TOLERANCE
          軸承的精度包括尺寸精度和旋轉精度,尺寸精度是將軸承安裝于軸或軸承箱時所要求的項目,它包括內徑、外徑、寬度、倒角尺寸公差或允許值ope电竞游戏。幾何精度包括內徑偏差ope电竞游戏、平均內徑差、外徑偏差、平均外徑差ope电竞游戏、套圈端面平行差的允許值。旋轉精度是規定旋轉時振擺的,包括內圈及外圈徑向擺動和軸向擺動,內圈側擺及外徑面垂直度公差范圍。
          軸承的精度等級從普通級0級到6級、5級、4級及2級,依次增高,下表1是中國GB307規定的精度等級與其他標準的比較。
          Bearing tolerance includes dimensional tolerance and revolving tolerance, Dimensional tolerance is a request when bearings are mounted on shafts or in housings. It includes bore/outerside diameter deviation from basic, inner ring/outer ring width deviation in single radial plane. Revolving tolerance includes radial and axial runout of assembled bearing inner ring and outer ring, inner ring reference fcace runout with bore and outside cylindrical surface runout with outer reference face.
          Tolerance class ranges from common class 0 to 6,5,4 and 2, from low to high, Table 1 below is the tolerance class stipulated in China GB307 and its comparison with some other standards.

          部分國家軸承精度等級對照表 COMPARISON OF TOLERANCE CLASS

          國別

          標準號

          精度等級

          中國 CHINA

          GB307

          0(G)

          6(E)

          5(D)

          4(C)

          2(B)

          ISO

          ISO492

          0

          6

          5

          4

          2

          德國 GERMANY

          DIN 620/2

          P0

          P6

          P5

          P4

          P2

          美國 USA

          ANSI B3.14

          ABEC1

          ABEC3

          ABEC5

          ABEC7

          ABEC9

          游隙 CLEARANCE
          軸承的游隙是指軸承在未安裝于軸或軸承箱之前的狀態下ope电竞游戏,固定內圈或外圈的一方,使未固定的套圈做徑向或軸向移動時套圈的移動量ope电竞游戏。根據移動方向,可分為徑向游隙和軸向游隙。
          Bearing clearance means the value of displacement of the unfixed ring when it moves against the fixed ring in radial or axial direction before the bearing is mouted on a shaft or in a housing. According to the movement direction, it falls into radial clearance and axial clearance.

          單列深溝球軸承的徑向游隙 RADIAL CLEARANCE


          軸承內徑(d)
          mm

          C2

          CO

          C3

          C4

          超過
          over

          到包括
          incl

          最小
          Min

          最大
          Max

          最小
          Min

          最大
          Max

          最小
          Min

          最大
          Max

          最小
          Min

          最大
          Max

          6

          10

          0

          7

          2

          13

          8

          23

          14

          29

          10

          18

          0

          9

          3

          18

          11

          25

          18

          33

          18

          24

          0

          10

          5

          20

          13

          28

          20

          36

          24

          30

          1

          11

          5

          20

          13

          23

          23

          41

          30

          40

          1

          11

          6

          20

          15

          33

          28

          46

          40

          50

          1

          11

          6

          23

          18

          36

          30

          51

          振動 VIBRATION
          軸承振動是指軸承零件隨時間而變化的彈性變形及除軸承功能所必需的運動以外的其它一切偏離理論位置的運動,它分為振動速度(dB)和振動速度(μm/S)。振動動加速度分Z、Z1ope电竞游戏ope电竞游戏、Z2和Z3三級考核,其中Z級為基本級,Z1、Z2和Z3依次表示軸承振動水平有低到高,具體要求見表3。具體要求見表4。由于振動速度測量更能顯現軸承的加工水平和體現軸承的內在質量ope电竞游戏,因而最為通用ope电竞游戏。
          我們公司在對軸承振動速度值控制的同時ope电竞游戏,按電機軸承的要求ope电竞游戏,對軸承運轉異聲也實施嚴格的監控ope电竞游戏。
          Bearing vibration means bearing components’ elastic deformation that varies with time and all other movement that deviates from a theoretic position except that necessary to bearing functions. It has two modes-acceleration(dB)and velocity(μm/S), Vibration acceleration is examined according to Z, Z4, Z2, and Z3 values. Grade Z is fundamental, Z1, Z2&Z3 successively indicate the vibration level ranges fron low to high. For detailed requirements, see Table3. Simlary, viaration velocity is examined as per V, V1, V2&V3. Grade V is fundamental, V1, V2&V3 successively indicate the vibration level ranges from low to high. For details, see Table4. Generally, velocity examination is better than acceleration examination in that it can more reflect bearings’ manufacturing level and bearings’ inherent quality.
          While our company keeps control of vibration velocity values, we also carry out vigorous control on abnormal noise from running bearings in test according to requirements of electric motor quality bearings.

          單個軸承振動加速度極限值 VIBRATION(ACCELERATION) LIMITES FOR SINGLE BEARING dB

          軸承公徑內徑
          d

          直徑系列(1)
          Diameter Series(1)

          直徑系列(2)
          Diameter Series(2)

          直徑系列(3)
          Diameter Series(3)

          mm

          Z

          Z1

          Z2

          Z1

          Z2

          Z3

          Z1

          Z2

          Z3

          10

          43

          42

          38

          42

          39

          35

          44

          40

          37

          12

          44

          43

          39

          43

          39

          35

          45

          40

          37

          15

          45

          44

          40

          44

          41

          36

          46

          42

          38

          17

          46

          44

          40

          45

          41

          36

          47

          42

          38

          20

          47

          45

          41

          46

          42

          38

          48

          43

          39

          25

          48

          46

          42

          47

          43

          40

          49

          44

          41

          30

          49

          47

          43

          48

          44

          41

          50

          45

          42

          35

          51

          49

          45

          50

          46

          43

          52

          47

          44

          40

          53

          51

          46

          52

          47

          44

          54

          49

          45

          45

          55

          53

          48

          54

          49

          46

          56

          51

          47

          50

          57

          54

          50

          55

          51

          48

          57

          53

          49

          單個軸承振動速度極限值 VIBRATION (VELOCITY)LIMTES FOR SINGLE BEARING μm/s


          軸承公稱內徑

          V

          V1

          V2

          V3

          d
          mm

          低頻帶
          low band

          中頻帶
          mid band

          高頻帶
          high band

          低頻帶
          low band

          中頻帶
          mid band

          高頻帶
          high band

          低頻帶
          low band

          中頻帶
          mid band

          高頻帶
          high band

          低頻帶
          low band

          中頻帶
          mid band

          高頻帶
          high band

          10

          160

          120

          100

          140

          100

          85

          90

          60

          50

          55

          35

          30

          12

          160

          120

          100

          140

          100

          85

          90

          60

          50

          55

          35

          30

          15

          210

          150

          120

          180

          130

          100

          110

          78

          60

          65

          46

          35

          17

          210

          150

          120

          180

          130

          100

          110

          78

          60

          65

          46

          35

          20

          260

          190

          150

          220

          160

          125

          130

          100

          75

          80

          60

          45

          22

          260

          190

          150

          220

          160

          125

          130

          100

          75

          80

          60

          45

          25

          260

          190

          150

          220

          160

          125

          130

          100

          75

          80

          60

          45

          28

          260

          190

          150

          220

          160

          125

          130

          100

          75

          80

          60

          45

          30

          300

          240

          190

          250

          200

          160

          150

          120

          100

          90

          75

          60

          32

          300

          240

          190

          250

          200

          160

          150

          120

          100

          90

          75

          60

          35

          300

          240

          190

          250

          200

          160

          150

          120

          100

          90

          75

          60

          40

          360

          300

          260

          300

          250

          220

          180

          150

          130

          110

          90

          80

          45

          360

          300

          260

          300

          250

          220

          180

          150

          130

          110

          90

          80

          50

          420

          320

          320

          350

          270

          270

          210

          160

          160

          125

          100

          100


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          銷售熱線:0511-83331866 13852908681 傳真:0511-83331201

          備案信息:蘇ICP備09059584號-1

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