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KALESON嘉利祥軸承精度等級分類

責任編輯:嘉利祥精工  發布時間:2015-11-10
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精度 TOLERANCE
嘉利祥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。幾何精度包括內徑偏差、平均內徑差、外徑偏差、平均外徑差、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

 

KALESON

A0

A3

A5

A4

A2

中國 CHINA

GB307

0G

6E

5D

4C

2B

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,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。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、Z1、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,因而最為通用。
我們公司在對軸承振動速度值控制的同時,按電機軸承的要求,對軸承運轉異聲也實施嚴格的監控。
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

 

 

KALESON嘉利祥軸承

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