No. 08B
No. 10B
BRITISH STANDARD
1/2" PITCH
BRITISH STANDARD
5/8" PITCH
U.S. Tsubaki Stock Sprockets
Chain Data BS/DIN
Chain Data BS/DIN
U.S. Tsubaki Stock Sprockets
10B
08B
Pitch
0.625" 0.380" 0.400" 0.361"
Pitch
0.500" 0.305" 0.335" 0.290"
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.
10B Plain Sprocket Diameter
Type A Plain Bore
Type B Plain Bore
08B Plain Sprocket Diameter
Type A Plain Bore
Type B Plain Bore
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
Style
Wt. LBS
8 9
1.886 2.091 2.299 2.504 2.709 2.909 3.114 3.315 3.516 3.717 3.921 4.122 4.323 4.520 4.720 4.921 5.122 5.323 5.524 5.720 5.921 6.122 6.323 7.319 8.315 9.311 12.299
1.634 1.827 2.024 2.220 2.413 2.610 2.807 3.008 3.205 3.402 3.598 3.799 3.996 4.193 4.394 4.591 4.787 4.988 5.185 5.382 5.583 5.780 5.980 6.972 7.965 8.961 11.941
1.232 1.429 1.622 1.819 2.016 2.213 2.409 2.606 2.803 3.000 3.201 3.398 3.597 3.795 3.992 4.189 4.390 4.587 4.783 4.984 5.181 5.382 5.579 6.571 7.567 8.559 11.543
0.472 0.472 0.472 0.472 0.472 0.472 0.472 0.472 0.472 0.472 0.472 0.630 0.630 0.630 0.630 0.630 0.630 0.630 0.630 0.748 0.748 0.748 0.748 0.748 0.748 0.748 0.984
0.630 0.748 0.866 0.984 1.260 1.299 1.417 1.496 1.732 1.850 1.890 2.008 2.008 2.008 2.008 2.008 2.008 2.008 2.008 2.008 2.008 2.008 2.244 2.244 2.244 2.520 2.520
0.866 1.063 1.260 1.457 1.693 1.890 2.087 2.244 2.480 2.638 2.874 2.992 2.992 2.992 2.992 2.992 2.992 2.992 2.992 2.992 2.992 2.992 3.228 3.228 3.228 3.740 3.740
0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.984 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.260 1.260
S S S S S S S S S S S S S E E E E E E E E E E E E E E
0.20 0.31 0.51 0.60 0.71 0.79 0.99 1.30 1.50 1.81 2.01 2.29 2.49 2.60 2.80 3.20 3.31 3.51 3.59 3.70 3.79 4.21 4.50 5.47 6.50 8.22
8 9
1.496 1.673 1.839 2.000 2.165 2.331 2.492 2.654 2.815 2.976 3.134 3.295 3.457 3.618 3.780 3.937 4.098 4.260 4.417 4.579 4.736 4.898 5.059 5.854 6.654 7.449 9.843
1.306 1.461 1.618 1.776 1.933 2.091 2.248 2.406 2.563 2.720 2.878 3.039 3.197 3.354 3.512 3.673 3.831 3.988 4.150 4.307 4.465 4.626 4.783 5.579 6.374 7.169 9.555
0.980 1.126 1.283 1.441 1.598 1.756 1.913 2.071 2.228 2.386 2.543 2.705 2.862 3.020 3.177 3.335 3.496 3.654 3.815 3.972 4.130 4.291 4.449 5.244 6.039 6.835 9.220
0.394 0.394 0.394 0.394 0.394 0.394 0.394 0.394 0.472 0.472 0.472 0.472 0.472 0.472 0.472 0.472 0.551 0.551 0.630 0.630 0.630 0.630 0.630 0.630 0.748 0.748 0.748
0.591 0.591 0.787 0.866 0.866 0.984 1.102 1.181 1.260 1.378 1.496 1.575 1.654 1.772 1.890 2.008 2.087 2.087 2.087 2.087 2.087 2.087 2.087 2.362 2.362 2.362 2.520
0.787 0.827 1.024 1.181 1.339 1.496 1.654 1.811 1.969 2.126 2.244 2.520 2.638 2.756 2.874 3.071 3.228 3.228 3.228 3.228 3.228 3.228 3.504 3.504 3.504 3.504 3.937
0.984 0.984 0.984 0.984 1.102 1.102 1.102 1.102 1.102 1.102 1.102 1.102 1.102 1.102 1.102 1.102 1.102 1.102 1.181 1.181 1.181 1.181 1.181 1.181 1.378 1.378 1.378
S S S S S S S S S S S S S E E E E E E E E E E E E E E
0.20 0.31 0.33 0.37 0.53 0.55 0.68 0.73 0.82 1.12 1.19 1.43 1.68 1.81 1.94 2.31 2.31 2.49 2.54 2.62 2.87 2.93 3.00 3.55 4.14 4.65 7.61
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 35 40 45 60
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 35 40 45 60
0.472 0.472 0.472 0.472 0.472 0.472 0.472 0.630 0.630 0.630 0.630 0.630 0.630 0.630 0.630 0.709 0.709 0.709 0.709 0.709 0.709 0.709 0.945
0.33 0.42 0.51 0.55 0.68 0.77 0.86 0.95 1.06 1.12 1.30 1.43 1.50 1.61 1.72 1.96 2.05 2.36 2.54 3.33 4.45 5.93
0.394 0.394 0.394 0.394 0.394 0.394 0.394 0.394 0.394 0.472 0.472 0.472 0.472 0.472 0.630 0.630 0.630 0.630 0.591 0.591 0.709 0.709 0.709
0.18 0.31 0.26 0.31 0.33 0.35 0.44 0.46 0.55 0.57 0.66 0.73 0.82 0.88 0.95 0.97 1.10 1.21 1.26 1.70 2.23 3.15 4.48
10.80
13.01
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.
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.
.290" NOMINAL
.290" NOMINAL
.290" NOMINAL
.361" NOMINAL
.361" NOMINAL
.361" NOMINAL
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
Y
Y
Y LTB
Y LTB
LTB
TOOTH (NOMINAL)
TOOTH (NOMINAL)
LTB
TOOTH (NOMINAL)
(N
L
L
L
L
X
STYLEE TYPEB X
STYLES TYPEB X
STYLES TYPEB X
TYPEA
TYPEA
STYLES TYPEB LTB
STYLEE TYPEB LTB
LTB STYLEE TYPEB
LTB STYLED TYPEC
LTB STYLEE TYPEB
LTB STYLED TYPEC
LTB STYLES TYPEB
LTB STYLES TYPEB
STYLEE TYPEC
TOOTH (NOMINAL)
T
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
TOOTH (NOMINAL)
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