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　3、  Accuracy
“BH”bearing is generally P5 class,tis allowable tolerance is listed as follows.

Accuracy class d
mm		 △dmp Vdp Vdmp Kia Sia Sd △Bs VBs
Diameter series
9 0,1 2,3,4
From To Upper
deviation		 Lower
deviation		 max max max max max Upper
deviation		 Lower
deviation		 max
P0 2.5 10 0 -8 10 8 6 6 10     0 -120 15
10 18 0 -8 10 8 6 6 10     0 -120 20
18 30 0 -10 13 10 8 8 13     0 -120 20
30 50 0 -12 15 12 9 9 15     0 -120 20
50 80 0 -15 19 19 11 11 20     0 -120 25
P6 2.5 10 0 -7 9 7 5 5 6     0 -120 15
10 18 0 -7 9 7 5 5 7     0 -120 20
18 30 0 -8 10 8 6 6 8     0 -120 20
30 50 0 -10 13 10 8 8 10     0 -120 20
50 80 0 -12 15 15 9 9 10     0 -150 25
P5 2.5 10 0 -5 5 4 4 4 4 7 7 0 -40 5
10 18 0 -6 5 4 4 4 4 7 7 0 -80 5
18 30 0 -6 6 5 5 5 4 8 8 0 -120 5
30 50 0 -8 8 6 6 6 5 8 8 0 -120 5
50 80 0 -9 9 7 7 7 5 8 8 0 -150 6
Accuracy class D
mm		 △Dmp VDp Vdmp Kea Sea SD △Cs VCs
Open Bearing
 Cappped Bearing
Diameter Series
9 0,1 2,3,4 2,3,4
From To Upper deviation Lower deviation max max max max max max
P0 6 18 0 -8 10 8 6 10 6 15     Same with △Bs of inner ring of the same bearing Same with VBs Of inner ring of the same bearing
18 30 0 -9 12 9 7 12 7 15    
30 50 0 -11 14 11 8 16 8 20    
50 80 0 -13 16 13 10 20 10 25    
80 120 0 -15 19 19 11 26 11 35    
P6 6 18 0 -7 9 7 5 9 5 8    
18 30 0 -8 10 8 6 10 6 9    
30 50 0 -9 11 9 7 13 7 10    
50 80 0 -11 14 11 8 16 8 13    
80 120 0 -13 16 16 10 20 10 18    
P5 6 18 0 -5 5 4 4     5 8 8 5
18 30 0 -6 6 5 5     6 8 8 5
30 50 0 -7 7 5 5     7 8 8 5
50 80 0 -9 9 7 7     8 10 8 6
80 120 0 -10 10 8 8     10 11 9 8
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