System of Measurement System of Measurement |
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For Roller Chain Strand Type For Roller Chain Strand Type |
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![]() | Single |
For Shaft Type For Shaft Type |
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![]() | Round |
Hub Diameter Hub Diameter | Show |
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Hub Diameter Hub Diameter | Hide |
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Bore Type Bore Type |
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![]() | ![]() |
Machinable | Round |
Material Material |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Sprocket Type Sprocket Type |
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ID ID |
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Component Component |
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![]() | Gear |
Pressure Angle Pressure Angle |
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About Roller Chain and Sprockets
More
About Gears
More
Sprockets for Metric Roller Chain


Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN roller chain. 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.
Metal 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. Compared to plastic gears and racks, they’re better for high-load, high-speed, and heavy duty applications. 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. To minimize your footprint, mount one or more standard gears inside of an internal gear.
For components to mesh correctly, they must have the same pressure angle and pitch/module.
Gears with teeth that are not hardened can be hardened to fit your application.
Stainless steel gears and racks resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning.
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 | Teeth Heat Treatment | Dia., mm | Wd., mm | Each | |
Round Bore | ||||||||||||
1 | 28 | 28 | 30 | 10 | 20 | 8 | 303 Stainless Steel | Not Hardened | 23 | 10 | 00000000 | 000000 |
High-Power Metal Gears

and Crossed Left-Hand
Gear (Sold Separately)

with Right-Hand
Teeth (Sold Separately)

The helical teeth on these gears stay in contact for longer than straight teeth, which allows them to transmit higher loads at higher speeds than spur gears.
For gears to mesh correctly, they must have the same pressure angle and pitch. All of these gears transmit motion in a straight line—make sure to get one left-hand and one right-hand gear. To change speed and torque in your assembly, pair two gears with different numbers of teeth.
Crossed helical gears, also known as screw gears, can be configured to transmit motion at a 90° angle. To transmit motion at a 90° angle, pair two gears with the same tooth direction. To avoid wearing down gears, which happens when you use the same material, we recommend mating gears with different materials. Carbon steel gears are stronger than 303 stainless steel gears but are not as corrosion resistant. 303 stainless steel gears have good corrosion resistance, and are commonly used on machinery in food-processing plants.
For technical drawings and 3-D models, click on a part number.


Hub | ||||||||||||
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Module | Number of Teeth | Helix Angle | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Teeth Heat Treatment | Dia., mm | Wd., mm | Each | |
Left Hand | ||||||||||||
Round Bore—Black-Oxide 1045 Carbon Steel | ||||||||||||
1.5 | 13 | 45° | 27 | 30.58 | 15 | 25 | 10 | Not Hardened | 23 | 10 | 00000000 | 000000 |
Round Bore—303 Stainless Steel | ||||||||||||
1.5 | 13 | 45° | 28 | 30.58 | 15 | 25 | 10 | Not Hardened | 23 | 10 | 00000000 | 00000 |
Right Hand | ||||||||||||
Round Bore—Black-Oxide 1045 Carbon Steel | ||||||||||||
1.5 | 13 | 45° | 27 | 30.58 | 15 | 25 | 10 | Not Hardened | 23 | 10 | 00000000 | 00000 |
Round Bore—303 Stainless Steel | ||||||||||||
1.5 | 13 | 45° | 28 | 30.58 | 15 | 25 | 10 | Not Hardened | 23 | 10 | 00000000 | 00000 |