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JB 988 - 1977

Display drawing:

机械行业JB 988 - 1977 JB988 988JB
Tube outer diameter
6 10 14 18 22 28 34 42 50
d0
d
d1 max=nominal size
min
d2
L
L2
L1
b
c1
s max=nominal size
min
e
3 6 10 12 15 20 25 32 36
7.5 11 16 19 22 28 34 42 50
8 11 16 20 24 30 35 40 45
7.8 10.8 15.8 19.8 23.8 29.66 34.66 39.66 44.66
M12×1.25 M16×1.5 M22×1.5 M27×1.5 M30×1.5 M36×2 M42×2 M52×2 M60×2
24 25 32 34 37 42 50 56 62
8 8 12 12 14 16 16 18 20
10 11 12 13 14 16 20 22 24
1.4 1.4 1.8 1.8 1.8 2.4 2.4 2.4 2.4
1 1.5 1.5 1.5 1.5 2.5 3 4 5
14 17 22 27 30 36 46 55 65
13.76 16.76 21.72 26.72 29.72 35.66 45.66 54.6 64.6
16.2 19.6 25.4 31.2 34.6 41.6 53.1 63.5 75