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　6、  vibration


The vibration of bearing is represented by Z, Z1、Z2、Z3 and Z4. it is tested by the instrument of s0910.when there are special requirements,it can be tested by BVT-1 and represented by V1、V2、V3 and V4. clients are required to note vibration requirement in orders.

Bearing
bore
d(mm) 		Vibration(Acceleration)dB Bibration (speed) μm/s
Diameter
Series(0)		 Diameter
Series(2)		 Diameter
Series(3)		 V1 V2 V3
Z Z1 Z2 Z Z1 Z2 Z3 Z Z1 Z2 Z3 Low
frequency 		Medium
frequency 		High
frequency 		Low
frequency 		Medium
frequency 		High
frequency 		Low
frequency 		Medium
frequency 		High
frequency
5 37 36 34 38 37 34 32 39 37 35 33 90 60 50 58 36 30 35 21 18
6 37 36 34 38 37 34 32 39 37 35 33 90 60 50 58 36 30 35 21 18
7 39 38 35 40 38 36 34         110 80 65 72 48 40 44 28 24
8 39 38 35 40 38 36 35         110 80 65 72 48 40 44 28 24
9 41 40 36 42 40 37 34         110 80 65 72 48 40 44 28 24
10 43 42 38 44 42 39 35 46 44 40 37 140 100 85 90 60 50 55 35 30
12 44 43 39 45 43 39 36 47 45 40 37 140 100 85 90 60 50 55 35 30
15 45 44 40 46 44 41 36 48 46 42 38 180 130 100 110 78 60 65 46 35
17 46 44 40 47 45 41 38 49 47 42 38 180 130 100 110 78 60 65 46 35
20 47 45 41 48 46 42 38 50 48 43 39 220 160 125 130 100 75 80 60 45
22 47 45 41 48 46 42 40 50 48 43 39 220 160 125 130 100 75 80 60 45
25 48 46 42 49 47 43 40 51 49 44 41 220 160 125 130 100 75 80 60 45
28 48 46 42 49 47 43 41 51 48 44 41 220 160 125 130 100 75 80 60 45
30 49 47 43 50 48 44 41 52 50 45 42 250 200 160 150 120 100 90 75 60
32 49 47 43 50 48 44 43 52 50 45 42 250 200 160 150 120 100 90 75 60
35 51 49 45 52 50 46 44 54 52 47 44 250 200 160 150 120 100 90 75 60
40 53 51 46 54 52 47 44 56 54 49 45 300 250 220 180 150 130 110 90 80
45 55 53 48 56 54 49 46 58 56 51 47 300 250 220 180 150 130 110 90 80
50 57 54 50 58 55 51 48 60 57 53 49 350 270 270 270 160 160 125 100 100
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