System of Measurement System of Measurement |
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Roller Chain Trade Size Roller Chain Trade Size |
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OD OD |
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For Maximum Shaft Diameter For Maximum Shaft Diameter |
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Overall Width Overall Width | Show |
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Overall Width Overall Width | Hide |
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Bore Type Bore Type |
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![]() | ![]() |
Machinable | Round |
For Roller Chain Strand Type For Roller Chain Strand Type |
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![]() | Single |
Sprocket Type Sprocket Type |
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For Shaft Type For Shaft Type |
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![]() | Round |
Roller Chain Standard Roller Chain Standard |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Component Component |
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![]() | Gear |
Module Module |
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About Roller Chain and Sprockets
More
About Gears
More
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 08B Roller Chain (12.7 mm Pitch) | ||||||||
---|---|---|---|---|---|---|---|---|
13 | 10 | 38 | 59.94 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
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 |
Plastic Gears and Gear Racks—20° Pressure Angle
The current industry standard, these 20° pressure angle gears have thicker, stronger teeth than 14½° pressure angle gears. Made of plastic, they run quieter than metal gears and have good corrosion and chemical resistance. They’re also known as spur gears.
Combine gears with different numbers of teeth to change speed and torque in your assembly. Combine a gear and rack to convert rotary motion into linear motion.
For components to mesh correctly, they must have the same pressure angle and pitch/module.
Acetal gears are best suited for use in light duty machines or for prototyping.
For technical drawings and 3-D models, click on a part number.



Hub | |||||||||||||
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Module | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Material | Fabrication | Color | Dia., mm | Wd., mm | Each | |
Round Bore | |||||||||||||
0.5 | 56 | 28 | 29 | 3 | 8 | 6 | Acetal Plastic | Molded | White | 14 | 5 | 00000000 | 00000 |
0.5 | 60 | 30 | 31 | 3 | 8 | 6 | Acetal Plastic | Molded | White | 14 | 5 | 0000000 | 0000 |
0.5 | 70 | 35 | 36 | 3 | 8 | 6 | Acetal Plastic | Molded | White | 14 | 5 | 00000000 | 0000 |
0.5 | 80 | 40 | 41 | 3 | 8 | 6 | Acetal Plastic | Molded | White | 14 | 5 | 00000000 | 0000 |
Plastic Miter Gears

Connect two shafts at a right angle without changing shaft speed or torque. Made of plastic, these gears run quieter than metal gears and have good corrosion and chemical resistance.
For two gears to mesh correctly, they must have the same pressure angle, pitch/module, and number of teeth.
Acetal gears absorb less moisture than nylon gears and are less prone to dimensional change. They’re best suited for use in light duty applications such as prototyping.
For technical drawings and 3-D models, click on a part number.


Hub | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Number of Teeth | Pressure Angle | Gear Pitch Dia. | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Mounting Distance, mm | Material | Fabrication | Color | Dia., mm | Wd., mm | Each | |
Round Bore | |||||||||||||||
0.5 | 20 | 20° | 10mm | 10.7 | 2.5 | 8 | 3 | 11 | Acetal Plastic | Molded | White | 8 | 4 | 000000 | 00000 |