About Gears
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About Roller Chain and Sprockets
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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 ISO 06B Roller Chain (9.53 mm Pitch) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 24 | 12 | 32 | 77 | 28 | 54 | Steel | DIN 8187, ISO 606 | 0000000 | 000000 |
XL Series Lightweight Timing Belt Pulleys
Acetal and aluminum construction makes these pulleys useful in weight-sensitive applications. All are XL series (extra light) and have trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OD | Number of Teeth | Pitch | For Shaft Dia. | Bore Type | Inside Wd. | Outside Wd. | Overall Wd. | Pitch Dia. | Number of Flanges | Fabrication | Material | Material | Dia. | Each | |
For 3/8" Max. Belt Wd. | |||||||||||||||
Metric | |||||||||||||||
| 77mm | 44 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 71.15mm | 2 | Molded | Acetal | Aluminum | 22mm | 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 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | ||||||||||||||
| 15 | 2.5 | 20° | 3:2 | 30 | 75 | 77 | 34 | 15 | 50 | 45 | 18 | Black-Oxide 1045 Carbon Steel | 00000000 | 000000 |
Hub | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | ||||||||||||||
| 15 | 2.5 | 20° | 3:2 | 20 | 50 | 55 | 31 | 12 | 55 | 35 | 13 | Black-Oxide 1045 Carbon Steel | 00000000 | 000000 |
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.
Nylon gears can be operated without lubrication, so they’re commonly used in food-processing machines.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |||||||||||||
| 1 | 75 | 75 | 77 | 10 | 20 | 10 | Nylon Plastic | Machined | Blue | 40 | 10 | 00000000 | 000000 |