About Roller Chain and Sprockets
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Flat Sprockets for ANSI Roller Chain
Also known as A-plate and weld sprockets, these have a slim profile that fits in narrow spaces and are often welded directly to a shaft.They come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size.
For technical drawings and 3-D models, click on a part number.
| Number of Teeth | For Shaft Dia. | For Max. Shaft Dia. | OD | Overall Wd. | Material | Each | |
For ANSI 35 Roller Chain (3/8" Pitch) | |||||||
|---|---|---|---|---|---|---|---|
| 15 | 1/2" | 1 23/64" | 1.99" | 11/64" | Steel | 00000000 | 000000 |
| 16 | 1/2" | 1 15/32" | 2.11" | 11/64" | Steel | 00000000 | 00000 |
| 17 | 1/2" | 1 19/32" | 2.23" | 11/64" | Steel | 00000000 | 00000 |
| 18 | 1/2" | 1 23/32" | 2.35" | 11/64" | Steel | 00000000 | 00000 |
| 19 | 1/2" | 1 27/32" | 2.47" | 11/64" | Steel | 00000000 | 00000 |
| 20 | 1/2" | 1 61/64" | 2.59" | 11/64" | Steel | 00000000 | 00000 |
| 21 | 1/2" | 2 5/64" | 2.71" | 11/64" | Steel | 00000000 | 00000 |
| 22 | 1/2" | 2 13/64" | 2.83" | 11/64" | Steel | 00000000 | 00000 |
| 23 | 1/2" | 2 5/16" | 2.95" | 11/64" | Steel | 00000000 | 00000 |
| 24 | 1/2" | 2 7/16" | 3.07" | 11/64" | Steel | 00000000 | 00000 |
| 25 | 1/2" | 2 9/16" | 3.19" | 11/64" | Steel | 00000000 | 00000 |
| 30 | 1/2" | 3 5/32" | 3.79" | 11/64" | Steel | 00000000 | 00000 |
| 35 | 5/8" | 3 3/4" | 4.39" | 11/64" | Steel | 00000000 | 00000 |
| 40 | 19/32" | 4 23/64" | 4.99" | 11/64" | Steel | 00000000 | 00000 |
| 45 | 19/32" | 4 61/64" | 5.59" | 11/64" | Steel | 00000000 | 00000 |
| 60 | 23/32" | 6 3/4" | 7.38" | 11/64" | Steel | 00000000 | 00000 |
For ANSI 40 Roller Chain (1/2" Pitch) | |||||||
| 12 | 1/2" | 1 21/64" | 2.17" | 9/32" | Steel | 0000000 | 00000 |
| 13 | 1/2" | 1 1/2" | 2.33" | 9/32" | Steel | 0000000 | 00000 |
| 14 | 1/2" | 1 21/32" | 2.49" | 9/32" | Steel | 0000000 | 00000 |
| 15 | 5/8" | 1 13/16" | 2.65" | 9/32" | Steel | 0000000 | 00000 |
| 16 | 5/8" | 1 63/64" | 2.81" | 9/32" | Steel | 0000000 | 00000 |
| 17 | 5/8" | 2 9/64" | 2.98" | 9/32" | Steel | 0000000 | 00000 |
| 18 | 5/8" | 2 19/64" | 3.14" | 9/32" | Steel | 0000000 | 00000 |
| 19 | 5/8" | 2 29/64" | 3.3" | 9/32" | Steel | 0000000 | 00000 |
| 20 | 5/8" | 2 5/8" | 3.46" | 9/32" | Steel | 0000000 | 00000 |
| 21 | 5/8" | 2 25/32" | 3.62" | 9/32" | Steel | 0000000 | 00000 |
| 22 | 5/8" | 2 15/16" | 3.78" | 9/32" | Steel | 0000000 | 00000 |
| 23 | 5/8" | 3 3/32" | 3.94" | 9/32" | Steel | 0000000 | 00000 |
| 24 | 5/8" | 3 17/64" | 4.1" | 9/32" | Steel | 0000000 | 00000 |
| 25 | 5/8" | 3 27/64" | 4.26" | 9/32" | Steel | 0000000 | 00000 |
| 30 | 19/32" | 4 7/32" | 5.06" | 9/32" | Steel | 0000000 | 00000 |
| 35 | 19/32" | 5 1/64" | 5.86" | 9/32" | Steel | 0000000 | 00000 |
| 40 | 23/32" | 5 13/16" | 6.65" | 9/32" | Steel | 0000000 | 00000 |
| 45 | 23/32" | 6 39/64" | 7.45" | 9/32" | Steel | 0000000 | 00000 |
| 60 | 23/32" | 9" | 9.84" | 9/32" | Steel | 0000000 | 00000 |
For ANSI 50 Roller Chain (5/8" Pitch) | |||||||
| 12 | 5/8" | 1 43/64" | 2.71" | 11/32" | Steel | 0000000 | 00000 |
| 13 | 5/8" | 1 7/8" | 2.91" | 11/32" | Steel | 0000000 | 00000 |
| 14 | 5/8" | 2 5/64" | 3.11" | 11/32" | Steel | 0000000 | 00000 |
| 15 | 5/8" | 2 9/32" | 3.32" | 11/32" | Steel | 0000000 | 00000 |
| 16 | 5/8" | 2 31/64" | 3.52" | 11/32" | Steel | 0000000 | 00000 |
| 17 | 5/8" | 2 11/16" | 3.72" | 11/32" | Steel | 0000000 | 00000 |
| 18 | 5/8" | 2 57/64" | 3.92" | 11/32" | Steel | 0000000 | 00000 |
| 19 | 5/8" | 3 5/64" | 4.12" | 11/32" | Steel | 0000000 | 00000 |
| 20 | 3/4" | 3 9/32" | 4.32" | 11/32" | Steel | 0000000 | 00000 |
| 21 | 3/4" | 3 31/64" | 4.52" | 11/32" | Steel | 0000000 | 00000 |
| 22 | 3/4" | 3 11/16" | 4.72" | 11/32" | Steel | 0000000 | 00000 |
| 23 | 3/4" | 3 57/64" | 4.92" | 11/32" | Steel | 0000000 | 00000 |
| 24 | 23/32" | 4 5/64" | 5.12" | 11/32" | Steel | 0000000 | 00000 |
| 25 | 23/32" | 4 9/32" | 5.32" | 11/32" | Steel | 0000000 | 00000 |
| 30 | 23/32" | 5 9/32" | 6.32" | 11/32" | Steel | 0000000 | 00000 |
| 35 | 23/32" | 6 9/32" | 7.32" | 11/32" | Steel | 0000000 | 00000 |
| 40 | 23/32" | 7 9/32" | 8.32" | 11/32" | Steel | 0000000 | 00000 |
| 45 | 23/32" | 8 9/32" | 9.31" | 11/32" | Steel | 0000000 | 00000 |
| 60 | 15/16" | 11 17/64" | 12.3" | 11/32" | Steel | 0000000 | 000000 |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||
| 12 | 3/4" | 2 1/64" | 3.25" | 15/32" | Steel | 0000000 | 00000 |
| 13 | 3/4" | 2 1/4" | 3.49" | 15/32" | Steel | 0000000 | 00000 |
| 14 | 3/4" | 2 1/2" | 3.74" | 15/32" | Steel | 0000000 | 00000 |
| 15 | 3/4" | 2 3/4" | 3.98" | 15/32" | Steel | 0000000 | 00000 |
| 16 | 3/4" | 2 63/64" | 4.22" | 15/32" | Steel | 0000000 | 00000 |
| 17 | 3/4" | 3 7/32" | 4.46" | 15/32" | Steel | 0000000 | 00000 |
| 18 | 3/4" | 3 15/32" | 4.7" | 15/32" | Steel | 0000000 | 00000 |
| 19 | 3/4" | 3 45/64" | 4.95" | 15/32" | Steel | 0000000 | 00000 |
| 20 | 3/4" | 3 61/64" | 5.19" | 15/32" | Steel | 0000000 | 00000 |
| 21 | 3/4" | 4 3/16" | 5.43" | 15/32" | Steel | 0000000 | 00000 |
| 22 | 3/4" | 4 7/16" | 5.67" | 15/32" | Steel | 0000000 | 00000 |
| 23 | 3/4" | 4 43/64" | 5.91" | 15/32" | Steel | 0000000 | 00000 |
| 24 | 23/32" | 4 29/32" | 6.15" | 15/32" | Steel | 0000000 | 00000 |
| 25 | 23/32" | 5 5/32" | 6.39" | 15/32" | Steel | 0000000 | 00000 |
| 30 | 23/32" | 6 11/32" | 7.59" | 15/32" | Steel | 0000000 | 00000 |
| 35 | 15/16" | 7 35/64" | 8.78" | 15/32" | Steel | 0000000 | 00000 |
| 40 | 15/16" | 8 3/4" | 9.98" | 15/32" | Steel | 0000000 | 00000 |
| 45 | 15/16" | 9 15/16" | 11.18" | 15/32" | Steel | 0000000 | 000000 |
| 60 | 1 1/4" | 13 33/64" | 14.76" | 15/32" | Steel | 0000000 | 000000 |
For ANSI 80 Roller Chain (1" Pitch) | |||||||
| 12 | 15/16" | 2 45/64" | 4.33" | 37/64" | Steel | 0000000 | 00000 |
| 13 | 15/16" | 3 1/32" | 4.66" | 37/64" | Steel | 0000000 | 00000 |
| 14 | 15/16" | 3 11/32" | 4.98" | 37/64" | Steel | 0000000 | 00000 |
| 15 | 15/16" | 3 43/64" | 5.3" | 37/64" | Steel | 0000000 | 00000 |
| 16 | 15/16" | 4" | 5.63" | 37/64" | Steel | 0000000 | 00000 |
| 17 | 15/16" | 4" | 5.95" | 37/64" | Steel | 0000000 | 00000 |
| 18 | 15/16" | 4 41/64" | 6.27" | 37/64" | Steel | 0000000 | 00000 |
| 19 | 15/16" | 4 61/64" | 6.59" | 37/64" | Steel | 0000000 | 00000 |
| 20 | 15/16" | 5 9/32" | 6.91" | 37/64" | Steel | 0000000 | 00000 |
| 21 | 15/16" | 5 39/64" | 7.24" | 37/64" | Steel | 0000000 | 00000 |
| 22 | 15/16" | 5 59/64" | 7.56" | 37/64" | Steel | 0000000 | 00000 |
| 23 | 15/16" | 6 1/4" | 7.88" | 37/64" | Steel | 0000000 | 00000 |
| 24 | 15/16" | 6 9/16" | 8.2" | 37/64" | Steel | 00000000 | 00000 |
| 25 | 15/16" | 6 7/8" | 8.52" | 37/64" | Steel | 00000000 | 00000 |
| 30 | 1 3/16" | 8 31/64" | 10.11" | 37/64" | Steel | 00000000 | 000000 |
| 35 | 1 3/16" | 10 5/64" | 11.71" | 37/64" | Steel | 00000000 | 000000 |
| 40 | 1 3/16" | 11 43/64" | 13.31" | 37/64" | Steel | 00000000 | 000000 |
| 45 | 1 1/4" | 13 9/32" | 14.9" | 37/64" | Steel | 00000000 | 000000 |
| 60 | 1 1/4" | 18 1/16" | 19.68" | 37/64" | Steel | 00000000 | 000000 |
Flat Sprockets for Metric Roller Chain
With metric teeth and slim profile, these sprockets allow your ISO roller chain to reach narrow spaces. They're commonly referred to as A-plate sprockets. Machine the unfinished bore to fit your shaft—sprockets come machined to the shaft diameter listed and are machinable up to the maximum shaft diameter size. Sprockets meet DIN 8187 and ISO 606, international standards for sprockets and roller chains.
For technical drawings and 3-D models, click on a part number.
| Number of Teeth | For Shaft Dia., mm | For Max. Shaft Dia., mm | OD, mm | Overall Wd., mm | Material | Specifications Met | Each | |
For ISO 06B Roller Chain (9.525 mm Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 15 | 8 | 35 | 51.05 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 16 | 10 | 39 | 53.85 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 17 | 10 | 42 | 56.9 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 18 | 10 | 45 | 59.94 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 20 | 10 | 51 | 66.04 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 21 | 10 | 54 | 69.09 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 22 | 10 | 57 | 72.14 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 26 | 10 | 69 | 84.07 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 28 | 10 | 75 | 90.17 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 36 | 12 | 100 | 114.3 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 40 | 14 | 112 | 126.49 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 60 | 18 | 172 | 187.2 | 6 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
For ISO 08B Roller Chain (12.7 mm Pitch) | ||||||||
| 13 | 10 | 38 | 59.94 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 14 | 10 | 43 | 64.01 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 15 | 10 | 47 | 67.82 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 16 | 10 | 51 | 71.88 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 17 | 10 | 55 | 75.95 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 18 | 10 | 59 | 80.01 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 20 | 10 | 67 | 88.14 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 21 | 12 | 71 | 91.95 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 22 | 12 | 75 | 96.01 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 24 | 12 | 83 | 104.14 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 25 | 12 | 87 | 108.2 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 26 | 16 | 92 | 112.27 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 27 | 16 | 96 | 116.33 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 32 | 15 | 116 | 136.4 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 36 | 15 | 132 | 152.65 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 37 | 15 | 136 | 156.72 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 39 | 18 | 144 | 164.59 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |