No. 16B
No. 12B
BRITISH STANDARD
1" PITCH
BRITISH STANDARD
3/4" PITCH
U.S. Tsubaki Stock Sprockets
Chain Data BS/DIN
U.S. Tsubaki Stock Sprockets
Chain Data BS/DIN
12B
16B
Pitch
0.750" 0.460" 0.475" 0.437"
Pitch
1.000" 0.670" 0.625" 0.637"
Inside Width
Inside Width
Roller Diameter
Roller Diameter
Nominal Tooth Width:
All dimensions in inches unless noted.
Nominal Tooth Width:
All dimensions in inches unless noted.
12B Plain Sprocket Diameter
Type A Plain Bore
Type B Plain Bore
16B Plain Sprocket Diameter
Type A Plain Bore
Type B and C Styles
No. Teeth Outside Dia.
Pitch Dia.
Caliper Dia.
Plain Bore
Wt. LBS
Plain Bore
Max. Bore*
Hub Dia.**
LTB
Style
Wt. LBS
No. Teeth Outside Dia.
Pitch Dia.
Caliper Dia.
Plain Bore
Wt. LBS Plain Bore Max. Bore* Hub Dia.**
LTB
Hub Style
Style
Wt. LBS
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 35 40 45 60
3.083 3.248 3.492 3.736 4.012 4.220 4.461 4.705 4.945 5.185 5.425 5.665 5.906 6.146 6.386 6.626 6.866 7.106 7.346 7.587 8.783 9.980
2.661 2.898 3.134 3.370 3.606 3.846 4.083 4.319 4.555 4.795 5.031 5.272 5.508 5.748 5.984 6.220 6.461 6.697 6.937 7.177 8.366 9.559
2.189 2.421 2.657 2.894 3.134 3.370 3.606 3.843 4.083 4.319 4.559 4.795 5.031 5.272 5.508 5.709 5.984 6.224 6.472 6.701 7.894 9.083
0.551 0.551 0.551 0.551 0.551 0.551 0.551 0.551 0.551 0.551 0.630 0.630 0.630 0.748 0.748 0.748 0.748 0.748 0.748 0.748 0.748 0.945 0.984 1.260
0.79 0.93 1.06 1.19 1.32 1.50 1.70 1.87 2.09 2.38 2.54 2.73 2.93 3.24 3.59 3.79 4.21 4.39 5.38 5.03 7.03 8.82
0.472 0.472 0.472 0.472 0.472 0.630 0.630 0.630 0.630 0.630 0.787 0.787 0.787 0.787 0.787 0.787 0.787 0.787 0.787 0.787 0.787 0.984 0.984 1.260
1.260 1.378 1.496 1.654 1.772 1.969 2.047 2.047 2.362 2.520 2.520 2.520 2.638 2.638 2.638 2.638 2.638 2.638 2.638 2.638 2.638 2.756 2.756 2.756
1.850 2.087 2.323 2.520 2.756 2.953 3.150 3.150 3.543 3.543 3.937 3.937 3.937 3.937 3.937 3.937 3.937 3.937 3.937 3.937 3.937 4.213 4.213 4.331
1.378 1.378 1.378 1.378 1.378 1.378 1.378 1.378 1.378 1.378 1.575 1.575 1.575 1.575 1.575 1.575 1.575 1.575 1.575 1.575 1.575 1.575 1.575 1.772
S S S S S S S S E E E E E E E E E E E E E E E E
1.17 1.48 1.65 2.01 2.51 2.80 3.22 3.73 3.92 4.63 5.00 5.25 5.49 5.78 6.13 6.37 6.72 6.88 7.28 7.58 9.04
11
4.004
3.551
2.925
0.551
1.81
0.630
1.614
2.480
1.575
B
S
3.20
12
4.331
3.862
3.240
0.551
2.01
0.630
1.850
2.835
1.575
B
S
4.01
13
4.657
4.177
3.555
0.551
2.29
0.630
2.047
3.110
1.575
B
S
4.01
14
4.980
4.496
3.870
0.551
2.69
0.630
2.362
3.465
1.575
B
S
4.61
15
5.303
4.811
4.185
0.551
3.00
0.630
2.441
3.780
1.575
B
S
5.71
16
5.626
5.126
4.500
0.551
3.40
0.787
2.638
3.937
1.772
B
E
6.61
17
5.949
5.441
4.819
0.551
3.99
0.984
2.638
4.016
1.772
B
E
7.01
18
6.272
5.760
5.134
0.945
4.41
0.984
2.756
4.252
1.772
B
E
8.31
0.984 No.80 Stainless Steel 1” Pitch 2.756 4.252
19
6.594
6.075
5.449
0.945
4.70
1.772
B
E
8.51
20
6.913
6.394
5.768
0.945
5.49
0.984
2.756
4.252
1.772
B
E
9.02
21
7.236
6.709
6.083
0.945
5.80
0.984
2.756
4.252
1.969
B
E
10.01
11.51 13.98 25.22
22
7.555
7.028
6.402
0.945
6.22
0.984
2.756
4.252
1.969
B
E
11.00
All dimensions in inches unless otherwise stated.
11.177 14.760
10.752 14.331
10.276 13.854
11.33 20.26
TypeB
0.945 Sprocket Diameters
23
7.874
7.346
6.720
6.70
0.984
2.756
4.252
1.969
B
E
11.20
1 ”Pitch Caliper Diameter
NOTE: For sprockets not listed, please consult factory *Dimensions shown allow for std keyway with set screw at 90°. **Hub Diameter may vary to suit bore size. For more information on Sprockets see pages 182-187.
0.984 Catalogue Number 0.984 SS80B10 SS80B11 SS80B12 SS80B13 SS80B14 SS80B15 SS80B16 SS80B18 SS80B19 SS80B20 SS80B22 SS80B23 SS80B24 1.260 1.260 1.260 1.260 1.260 1.260
Stock Bore
†Max. Bore 1¹⁄₂ 1⁵⁄₈ 1⁷⁄₈ 1³¹⁄₃₂
*Hub Diameter
Weight (lbs.)
No. of Teeth
Outside Diameter
Pitch Diameter
24
8.197
7.661
7.035
0.945
7.61
2.756 Style 2.756
4.252
1.969
B
E
12.21
B 1⁹⁄₁₆ 1⁹⁄₁₆ 1⁹⁄₁₆ 1⁹⁄₁₆ 1⁹⁄₁₆ 1⁹⁄₁₆ B B LTB
10 11 12 13 14 15 16 18 19 20 22 23 24
3.678 4.006 4.332 4.657 4.981 5.305 5.627 6.271 6.593 6.914 7.555 7.826 8.196
S S S S S S S S S S D D D
2.4 2.9 3.6 3.8 4.4 5.6 6.1 6.9 7.4
3.236 3.550 3.864 4.179 4.494 4.810 5.126 5.759 6.076 6.392 7.027 7.344 7.661
2.611 2.888 3.239 3.523 3.869 4.158 4.501 5.134 5.430 5.767 6.402 6.702 7.036
2⁹⁄₁₆ 2¹³⁄₁₆ 3¹⁄₈ 3¹⁄₃₂ 3¹⁄₄ 3¹³⁄₁₆
1 1 1 1 1 1 1 1 1 1 1 1 1
25
8.516
7.980
7.354
0.945
8.00
4.252
1.969
E
12.70
26
8.835
8.295
7.669
1.181
8.60
3.150
4.724
1.969
D
15.50
27
9.157
8.614
7.988
1.181
9.50
3.150
4.724
1.969
D
16.60
2¹⁄₄ 2¹⁄₄
28
9.476
8.933
8.307
1.181
10.10
3.150
4.724
1.969
B 1⁵⁄₈ 1⁵⁄₈ 1⁵⁄₈ 1⁷⁄₈ 1⁷⁄₈ 1⁷⁄₈ 1⁷⁄₈ B B B
D
16.71
2⁷⁄₁₆ 2⁷⁄₁₆ 2⁷⁄₁₆ 2¹⁵⁄₁₆ 2¹⁵⁄₁₆ 2¹⁵⁄₁₆ 2¹⁵⁄₁₆
3³⁄₄ 3³⁄₄ 3³⁄₄ 4¹⁄₂ 4¹⁄₂ 4¹⁄₂ 4¹⁄₂
29
9.795
9.248
8.626
1.181
10.60
3.150
4.724
1.969
D
17.50
10.4 11.4 12.0 12.5
30
10.114
9.567
8.941
1.260
11.51
3.150
4.724
1.969
D
18.21
.437" NOMINAL
.437" NOMINAL
.437" NOMINAL
35
11.713
11.157
10.531
1.260
15.26
3.150
4.724
1.969
D
22.16
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL) 4.724
TOOTH (NOMINAL) 1.260
Y
Y
Y LTB
40
LTB 13.307 14.902
12.744
LTB All stainless steel sprockets are constructed from grade 304 stainless steel and meet food grade standards. Other stainless steel materials are available upon request. † Dimensions shown allow for standard keyway with set screw at 90°. * Hub diameter may vary to suit bore size. TOOTH (NOMINAL) 1.260 12.122 19.86 3.150 1.969 B
D
26.08
TOOTH (NOMINAL)
TOOTH (NOMINAL)
45
14.335
13.709
1.260
25.79
1.260
3.150
4.724
1.969
B
D
30.03
L Dimensional Data Single Strand Chain 80 Size 80 Pitch 1.000” Chain Inside Width 0.625" Roller Diameter 0.625" Nominal Tooth Width 0.575" 18.484
60
19.681
19.106
1.260
43.54
1.260
3.346
5.118
1.969
B
D
51.43
NOTE: For sprockets not listed, please consult factory *Dimensions shown allow for std keyway with set screw at 90°. **Hub Diameter may vary to suit bore size.
.637" NOMINAL
.637" NOMINAL
.637" NOMINAL
.637" NOMINAL
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL) TOOTH (NOMINAL)
If the sprocket needed is not listed above, please contact Tsubaki for made-to-order custom sprockets.
Y
Y LTB
TOOTH (NOMINAL)
LTB
TOOTH (NOMINAL)
S e c t i o n
L
L
E
X
STYLEE TYPEB X
STYLES TYPEB X
TYPEA
STYLES TYPEB LTB
STYLEE TYPEB LTB
LTB STYLEE TYPEB
LTB STYLED TYPEC
LTB STYLES TYPEB
STYLEE TYPEC
L
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
X
TOOTH (NOMINAL)
STYLES TYPEB X
TYPEA
LTB STYLEE TYPEB STYLES TYPEB LTB
LTB STYLED TYPEC LTB STYLED TYPEB TYPE B
LTB STYLES TYPEB
STY
TYP
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