Roller Chain Trade Size Roller Chain Trade Size |
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System of Measurement System of Measurement |
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For Roller Chain Strand Type For Roller Chain Strand Type |
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Bore Type Bore Type |
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Machinable | Round |
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Overall Width Overall Width | Hide |
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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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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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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.
Number of Teeth | For Shaft Dia., mm | For Max. Shaft Dia., mm | OD, mm | Overall Wd., mm | Hub Dia., mm | Material | Specifications Met | Each | |
For DIN, ISO 04B Roller Chain (6 mm Pitch) | |||||||||
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30 | 8 | 19 | 59.9 | 15 | 30 | Steel | DIN 8187, ISO 606 | 0000000 | 000000 |
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. Gears with a clamping bore have a built-in clamp that securely grips shafts without marring them. Use the included clamping screw to tighten or loosen the grip.
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 | Clamping Screw Thread Size | Each | |
Clamping Bore with Clamping Screw | |||||||||||||
0.5 | 50 | 25 | 26 | 5 | 15 | 6 | 303 Stainless Steel | Not Hardened | 17 | 10 | M3 | 0000000 | 000000 |
Metal Bevel Gears


A type of miter gear where one gear (sometimes called a pinion) is smaller than the other, bevel gears provide right-angle speed reduction at speed ratios ranging from 2:1 to 5:1. All are carbon steel for strength; they're compatible with plastic bevel gears. Teeth are not hardened so you can harden them to fit your application. Hardening a gear’s teeth increases its wear resistance.
A complete set consists of a gear and pinion (sold separately). For a gear and pinion to mesh correctly, they must have the same pressure angle, pitch/module, and face width. Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.
For technical drawings and 3-D models, click on a part number.


Hub | ||||||||||||||
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Face Wd., mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Wd., mm | For Shaft Dia., mm | Mounting Distance (A), mm | Dia., mm | Wd., mm | Material | Each | |
Round Bore | ||||||||||||||
6 | 1 | 20° | 2:1 | 40 | 40 | 41 | 15 | 8 | 22 | 25 | 8 | Black-Oxide 1045 Carbon Steel | 00000000 | 000000 |



Hub | ||||||||||||||
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Face Wd., mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Wd., mm | For Shaft Dia., mm | Mounting Distance (B), mm | Dia., mm | Wd., mm | Material | Each | |
Round Bore | ||||||||||||||
6 | 1 | 20° | 2:1 | 20 | 20 | 22 | 14 | 6 | 28 | 16 | 7 | Black-Oxide 1045 Carbon Steel | 00000000 | 000000 |
High-Power Metal Bevel Gears

Made from carbon steel with spiral teeth, these gears handle heavier loads at higher speeds than bevel gears with straight teeth because their teeth stay in contact longer. Their teeth engage gradually, which reduces vibration and noise, and they’re hardened for extra wear resistance. Use these gears to transmit motion at a right angle while changing shaft speed and torque. They reduce speeds at ratios of 2:1, 3:1, or 4:1. Customize their machinable bore to fit them on a variety of shafts. They’re also known as spiral bevel gears.
A complete set consists of a gear and pinion (sold separately). The gear is larger than the pinion, but for them to mesh correctly, they must have the same pressure angle, module, and face width.
Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.
For technical drawings and 3-D models, click on a part number.


Hub | |||||||||||||
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Face Width, mm | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (A), mm | Material | Diameter, mm | Width, mm | Each | |
Machinable Round Bore | |||||||||||||
6 | 20° | 2:1 | 40 | 40 | 40.52 | 15 | 8-18 | 22 | Black-Oxide 1045 Carbon Steel | 25 | 8 | 0000000 | 000000 |



Hub | |||||||||||||
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Face Width, mm | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (B), mm | Material | Diameter, mm | Width, mm | Each | |
Machinable Round Bore | |||||||||||||
6 | 20° | 2:1 | 20 | 20 | 22.08 | 13.7 | 6-9 | 28 | Black-Oxide 1045 Carbon Steel | 16 | 7 | 0000000 | 000000 |
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.
Nylon gears are self-lubricating, so they’re often used in food machinery. However, they’re not approved for direct contact with food or chemicals that will come into contact with food.
For technical drawings and 3-D models, click on a part number.


Hub | |||||||||||||||
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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 | |||||||||||||||
1 | 25 | 20° | 25mm | 26.4 | 6 | 15 | 6 | 23 | Nylon Plastic | Molded | Blue | 20 | 8 | 00000000 | 000000 |
Plastic Bevel Gears

Reduce speeds where noise, corrosion, and frequent lubrication are a concern. Compared to metal gears, these nylon gears run more quietly, won't rust, and don't need to be lubricated. Because they’re self-lubricating, these bevel gears are commonly used in food machinery. They should not, however, come in direct contact with food or chemicals that will come in contact with food.
A complete set consists of a gear and pinion (sold separately). For a gear and pinion to mesh correctly, they must have the same pressure angle, module, and face width. Plastic pinions can also be mated with metal gears, and plastic gears with metal pinions.
Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.
For technical drawings and 3-D models, click on a part number.



Hub | ||||||||||||||||
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Face Width, mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (A), mm | Material | Fabrication | Color | Diameter, mm | Width, mm | Each | |
Round Bore | ||||||||||||||||
6 | 1 | 20° | 2:1 | 40 | 40 | 40.6 | 15 | 8 | 22 | Nylon Plastic | Molded | Blue | 25 | 8 | 00000000 | 000000 |




Hub | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Face Width, mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (B), mm | Material | Fabrication | Color | Diameter, mm | Width, mm | Each | |
Round Bore | ||||||||||||||||
6 | 1 | 20° | 2:1 | 20 | 20 | 22.4 | 14 | 6 | 28 | Nylon Plastic | Molded | Blue | 16 | 7 | 00000000 | 000000 |
Metal Ratcheting Gears

Compared to plastic gears, these metal ratcheting gears are better for high-load, high-speed, and heavy duty applications. Used to prevent unwanted motion in jacks, tie downs, clutches, and winches, ratchet gears have sloped teeth that allow motion in one direction and prevent it in the other.
Gears with hardened teeth are more wear resistant than gears with teeth that are not hardened.
For technical drawings and 3-D models, click on a part number.