PLAIN BORE No. 40
FINISHED BORE No. 40
1 / 2 ” PITCH
1 / 2 ” PITCH
Chain Data Size
Chain Data Size
40
40
Pitch
1/2˝
Pitch
1/2˝
Inside Width
5/16˝ 0.312˝ 0.284˝
Roller Diameter
Inside Width
5/16˝ 0.312˝ 0.284˝
Nominal Tooth Width:
Roller Diameter
All dimensions in inches unless noted.
40 Plain Bore Sprocket Dia.
Type “A” Plain Bore
Type “B” Plain Bore
Nominal Tooth Width:
No. Teeth
Outside Dia.
Pitch Dia.
Caliper Dia.
Plain Bore
Wt. Lbs.
Plain Bore
MAX Bore *
Hub Dia. 0.984 ¨ 1.063 ¨ 1.250 ¨ 1.375 ¨ 1.563 ¨
LTB
Hub Style
Wt. Lbs.
All dimensions in inches unless noted.
8 9
1.510 1.670 1.840 2.000 2.170 2.330 2.490 2.650 2.810 2.980 3.140 3.300 3.460 3.620 3.780 3.940 4.100 4.260 4.420 4.580 4.740 4.900 5.060 5.220 5.380 5.540 5.700 5.860 6.020 6.180 6.330 6.490 6.660 6.810 6.970 7.130 7.290 7.450 7.610 7.770 7.930 8.090 8.250 8.410 8.570 8.730 8.890 9.040
1.307 1.462 1.618 1.775 1.932 2.089 2.247 2.405 2.563 2.721 2.879 3.038 3.196 3.355 3.513 3.672 3.831 3.989 4.148 4.307 4.465 4.625 4.783 4.942 5.101 5.260 5.419 5.578 5.737 5.896 6.055 6.214 6.373 6.532 6.691 6.850 7.009 7.168 7.327 7.486 7.645 7.804 7.963 8.124 8.281 8.440 8.599 8.758
0.995 1.127 1.305 1.444 1.620 1.761 1.934 2.079 2.250 2.397 2.567 2.715 2.883 3.033 3.201 3.351 3.518 3.669 3.835 3.987 4.153 4.305 4.471 4.623 4.788 4.941 5.107 5.260 5.425 5.578 5.742 5.896 6.061 6.214 6.379 6.532 6.696 6.851 7.014 7.169 7.332 7.487 7.650 7.805 7.968 8.124 8.286 8.442
NS NS NS NS
NS NS NS NS
0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 1.000 1.000
0.500 0.563 0.750 0.875 1.000 1.063 1.125 1.250 1.375 1.438 1.500 1.750 1.875 1.875 1.875 2.000 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.750 2.750 2.750 2.750 2.750 2.750
0.875 0.875 0.875 0.875 0.875 0.875 0.875 0.875 0.875 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.125 1.125 1.125 1.125 1.125 1.125 1.125 1.125 1 .125 1.125 1.125 1.125 1.125 1.125 1.125 1.125 1.125 1.125 1.125 1.125 1.125 1.250 1.250 1.250 1.250 1.250 1.250
S 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 E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E
0.18 0.20 0.27 0.35 0.45 0.50 0.59 0.70 0.79 1.04 1.22 1.43 1.56 1.73 1.96 2.13 2.41 2.54 2.58 2.66 2.73 2.80 2.98 3.10 3.16 3.22 3.30 3.46 3.58 3.62 3.70 3.76 4.69 4.76 4.82 5.12 5.15 5.30 5.57 5.44 5.84 5.90 5.95 6.08 6.28 6.33 6.42 6.46 6.89 7.02 7.35 7.45
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 70 72 80 84 96
40 Sprocket Diameters
Type “F” Bored to Shaft Size (includes standard keyway and two set screws)
0.500 0.500 0.500 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.594 0.594 0.594 0.594 0.594 0.594 0.594 0.594 0.594 0.594 0.594 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.938 0.938
0.18 0.22 0.25 0.30 0.34 0.36 0.44 0.46 0.56 0.58 0.66 0.72 0.82 0.88 0.94 0.98 1.10 1.22 1.25 1.40 1.48 1.56 1.64 1.70 1.84 1.92 2.00 2.02 2.22 2.42 2.50 2.80 2.85 3.15 3.25 3.32 3.22 3.44 3.62 3.94 4.08 4.24 4.44 4.54 4.84 5.00 5.12 5.30 5.48 7.24 7.74
1.563 1.688 1.813 2.000 2.125 2.313 2.500 2.625 2.750 2.875 3.000 3.250 3.250 3.250 3.250 3.250 3.250 3.250 3.250 3.250 3.250 3.250 3.250 3.250 3.250 3.250 3.250 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 4.000 4.000 4.000 4.000 4.000 4.000
No. Teeth
Outside Diameter
Pitch Diameter
Caliper Diameter
Hub Style
Wt. Lbs. 0.20 0.27 0.35 0.45 0.50 0.59 0.70 0.79 1.04 1.22 1.43 1.56 1.73 1.96 2.13 2.41 2.54 2.58 2.66 2.73 2.80 2.98 3.10 3.16 3.22 3.30 3.46 3.58 3.62 3.70 3.76 4.69 4.76 4.82 5.12 5.15 5.30 5.57 5.44 5.84 5.90 5.95 6.08 6.28 6.33 6.42 6.46 6.89 7.02 7.35 7.45 7.86
9
1.674 1.839 2.003 2.166 2.328 2.490 2.652 2.814 2.974 3.136 3.292 3.457 3.618 3.778 3.938 4.098 4.258 4.418 4.578 4.738 4.900 5.057 5.220 5.376 5.540 5.696 5.856 6.015 6.170 6.334 6.490 6.653 6.810 6.972 7.130 7.290 7.450 7.610 7.770 7.930 8.090 8.250 8.410 8.570 8.730 8.890 9.040 9.200 9.360 9.520 9.680 9.840
1.462 1.618 1.775 1.932 2.089 2.247 2.405 2.563 2.721 2.879 3.038 3.196 3.355 3.513 3.672 3.831 3.989 4.148 4.307 4.465 4.625 4.783 4.942 5.101 5.260 5.419 5.578 5.737 5.896 6.055 6.214 6.373 6.532 6.691 6.850 7.009 7.168 7.327 7.486 7.645 7.804 7.963 8.122 8.281 8.440 8.599 8.758 8.917 9.077 9.235 9.395 9.554
1.127 1.305 1.444 1.620 1.761 1.934 2.079 2.250 2.397 2.567 2.715 2.883 3.033 3.201 3.351 3.518 3.669 3.835 3.987 4.153 4.305 4.471 4.623 4.788 4.941 5.107 5.260 5.425 5.578 5.742 5.896 6.061 6.214 6.379 6.532 6.696 6.851 7.014 7.169 7.332 7.487 7.650 7.805 7.968 8.124 8.826 8.442 8.605 8.760 8.924 9.078 9.241
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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 E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 70 72 80 84 96
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9.200 9.360 9.520 9.680 9.840 11.430 11.750 13.030 13.660 15.570 18.120
8.917 9.077 9.235 9.395 9.554 11.145 11.463 12.736 13.372 15.282 17.827
8.605 8.760 8.924 9.078 9.241 10.832 11.151 12.423 13.059 14.969 17.515
7.86 11.00 11.50 13.40 14.04 17.56 22.56
10.20 10.07 12.15 20.00
112
* Dimensions shown allow for standard keyway with set screw at 90 degrees ¨ Has recessed groove in hub for chain clearance NS = Non Stock
STAINLESS STEEL PLAIN BORE
Chain Data Size
40SS
Pitch
1/2˝
Inside Width
5/16˝ 0.312˝ 0.284˝
Roller Diameter
Nominal Tooth Width:
All dimensions in inches unless noted.
40 Stainless Steel Sprocket Diameters
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. 1.250 ¨ 1.375 ¨ 1.563 ¨
LTB Hub Style Wt. Lbs.
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30 35 40 45 60
1.840 2.000 2.170 2.330 2.490 2.650 2.810 2.980 3.140 3.300 3.460 3.620 3.780 3.940 4.100 4.260 4.420 4.740 5.060 5.860 6.650 7.450 9.840
1.618 1.775 1.932 2.089 2.247 2.405 2.563 2.721 2.879 3.038 3.196 3.355 3.513 3.672 3.831 3.989 4.148 4.465 4.783 5.578 6.373 7.168 9.554
1.305 1.444 1.620 1.761 1.934 2.079 2.250 2.397 2.567 2.715 2.883 3.033 3.201 3.351 3.518 3.669 3.835 4.153 4.471 5.260 6.061 6.851 9.241
N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
N/A N/A N/A N/A N/A N/A N/A N/A
0.500 0.500 0.500 0.500 0.500 0.500 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.750 0.750 0.750
0.750 0.813 0.938 1.063 1.125 1.250 1.375 1.438 1.500 1.750 1.875 1.875 1.875 2.000 2.250 2.250 2.250 2.250 2.250 2.250 2.375 2.375 2.375
0.875 0.875 0.875 0.875 0.875 0.875 0.875 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000
S S S S S S S S S S S S S S D D D D D D D D D
0.28 0.36 0.44 0.50 0.60 0.68 0.82 1.06 1.24 1.42 1.60 1.68 1.81 2.18 2.20 2.39 2.40 2.75 2.88 3.32 4.28 4.68 7.00
1.563 1.688 1.813 2.000 2.125 2.313 2.500 2.625 2.750 2.875 3.000 3.250 3.250 3.250 3.250 3.250 3.250 3.500 3.500 3.500
N/A N/A N/A N/A N/A N/A 0.80 N/A 1.31 1.35 1.39 1.92 2.36 3.13 5.50
11.430 11.750 13.030 13.660 15.570 18.120
11.145 11.463 12.736 13.372 15.282 17.827
10.832 11.151 12.423 13.059 14.969 17.515
11.00 11.50 13.40 14.04 17.56 22.56
0.594
N/A
112
0.594 0.594 0.594 0.594 0.719 0.719 0.719
• Denotes stocked item ¢ Indicates ser screw at 90 degrees and 180 degrees from keyway ** Furnished without keyway
* Dimension depicted allows for standard keyway with set screw at 90 degrees ¨ Has recessed groove in hub for chain clearance N/A = Not Available
For more information on Sprockets see pages 132-137.
For more information on Sprockets see pages 132-137.
145
146
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