Miki Pulley COUPLINGS, Manual

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99
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JIS (Excerpts from JIS B 1301-1996)
Unit [mm]
Nominal
key
dimension
b×h
Applicable
shaft
diameter
d
Key dimension Key slot dimension
b h
c or r
Basic
dimen-
sion of b1
and b2
Locking type Normal type
r1
and
r2
t1 t2
Basic
dimension
Tolerance
(h9)
Basic
dimension
Tolerance
Tolerance of
b1 and b2 (P9)
b1 Tolerance
(N9)
b1 Tolerance
(Js9)
Basic
dimension Tolerance
Basic
dimension Tolerance
2× 2 6 to 8
2
0
−0.025
2
0
−0.025
h9
0.16
to
0.25
2
−0.006
−0.031
−0.004
−0.029
±0.0125
0.08
to
0.16
1.2
+ 0.1
0
1.0
+ 0.1
0
3× 3 8 to 10
3 3 3 1.8 1.4
4× 4 10 to 12 4
0
−0.030
4
0
−0.030
4
−0.012
−0.042
0
−0.030
±0.0150
2.5 1.8
5× 5 12 to 17 5 5
0.25
to
0.40
5
0.16
to
0.25
3.0 2.3
6× 6 17 to 22 6 6 6 3.5 2.8
8× 7 22 to 30 8
0
−0.036
7
0
−0.090
h11
8
−0.015
−0.051
0
−0.036
±0.0180
4.0
+ 0.2
0
3.3
+ 0.2
0
10× 8 30 to 38 10 8
0.40
to
0.60
10
0.25
to
0.40
5.0 3.3
12× 8 38 to 44
12
0
−0.043
8 12
−0.018
−0.061
0
−0.043
±0.0215
5.0 3.3
14× 9 44 to 50
14 9 14 5.5 3.8
16×10 50 to 58
16 10 16 6.0 4.3
18×11 58 to 65
18 11
0
−0.110
18 7.0 4.4
20×12 65 to 75 20
0
−0.052
12
0.60
to
0.80
20
−0.022
−0.074
0
−0.052
±0.0260
0.40
to
0.60
7.5 4.9
22×14 75 to 85 22 14 22 9.0 5.4
25×14 85 to 95 25 14 25 9.0 5.4
28×16 95 to 110 28 16 28 10.0 6.4
32×18 110 to 130 32
0
−0.062
18 32
−0.026
−0.088
0
−0.062
±0.0310 11.0 7.4
Dimensions and Tolerances of Parallel Keys
and Key Slots
Technical Data
t1
t2
h
b
d
b2
r2
d
b1
r1
c or
r
Cross section
of shaft
Cross section
of bore
Cross section
of key
ò
Previous JIS First Class (Excerpts form JIS B 1301-1959)
Unit [mm]
Nominal
key
dimension
b×h
Applicable
shaft
diameter
d
Key dimension Key slot dimension
b h
c or r
Basic
dimen-
sion of b1
and b2
b1
Tolerance
(H8)
b2
Tolerance
(F7)
r1
and
r2
t1 t2
Basic
dimension
Tolerance
(p7)
Basic
dimension
Tolerance
(h9)
Basic
dimension Tolerance
Basic
dimension Tolerance
4× 4 10 or more, 13 or less
4
+ 0.024
+ 0.012
4
0
−0.030
0.5
4
+ 0.018
0
+ 0.022
+ 0.010
0.4
2.5
+ 0.05
0
1.5
+ 0.05
0
5× 5 Over 13, 20 or less
5 5 5 3 2
7× 7 Over 20, 30 or less
7
+ 0.030
+ 0.015
7
0
−0.036
7
+ 0.022
0
+ 0.028
+ 0.013
4 3
10× 8 Over 30, 40 or less 10 8
0.8
10
0.6
4.5 3.5
12× 8 Over 40, 50 or less 12
+ 0.036
+ 0.018
8 12
+ 0.027
0
+ 0.034
+ 0.016
4.5 3.5
15×10 Over 50, 60 or less 15 10 15 5 5
18×12 Over 60, 70 or less 18 12
0
−0.043
1.2
18
1.0
6 6
20×13 Over 70, 80 or less 20
+ 0.043
+ 0.022
13 20
+ 0.033
0
+ 0.041
+ 0.020
7 6
24×16 Over 80, 95 or less
24 16 24 8 8
28×18 Over 95, 110 or less
28 18 28 9 9
32×20 Over 110, 125 or less 32
+ 0.051
+ 0.026
20
0
−0.052
2 32
+ 0.039
0
+ 0.050
+ 0.025
1.6 10 10
Unit [mm]
ò
Previous JIS Second Class (Excerpts from JIS B 1301-1959)
Nominal
key
dimension
b×h
Applicable
shaft
diameter
d
Key dimension Key slot dimension
b
h
c
or
r
Basic
dimen-
sion of b1
and b2
b1
Tolerance
(H9)
b2
Tolerance
(E)
r1
and
r2
t1 t2
Basic
dimension
Tolerance
(h8)
Basic
dimension
Tolerance
(h10)
Basic
dimension Tolerance
Basic
dimension Tolerance
4× 4 10 or more, 13 or less 4
0
−0.018
4
0
−0.048
0.5
4
+ 0.030
0
+ 0.050
+ 0.020
0.4
2.5
+ 0.1
0
1.5
+ 0.1
0
5× 5 Over 13, 20 or less 5 5 5 3 2
7× 7 Over 20, 30 or less
7
0
−0.022
7
0
−0.058
7
+ 0.036
0
+ 0.061
+ 0.025
4 3
10× 8 Over 30, 40 or less
10 8
0.8
10
0.6
4.5 3.5
12× 8 Over 40, 50 or less
12
0
−0.027
8 12
+ 0.043
0
+ 0.075
+ 0.032
4.5 3.5
15×10 Over 50, 60 or less
15 10 15 5 5
18×12 Over 60, 70 or less 18 12
0
−0.070
1.2
18
1.0
6 6
20×13 Over 70, 80 or less 20
0
−0.033
13 20
+ 0.052
0
+ 0.092
+ 0.040
7 6
24×16 Over 80, 95 or less 24 16 24 8 8
28×18 Over 95, 110 or less 28 18 28 9 9
32×20 Over 110, 125 or less 32
0
−0.039
20
0
−0.084
2 32
+ 0.062
0
+ 0.112
+ 0.050
1.6 10 10