About Roller Chain and Sprockets
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About Gears
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Lightweight Idler Sprockets for ANSI Roller Chain
Made of nylon, these sprockets are lightweight, quiet, and corrosion resistant. Designed to rotate freely on built-in bearings, idler sprockets maintain constant tension on your drive by pressing against your chain to take up slack and reduce wear and vibration. They are for use with roller chain tensioners. Bearings are double sealed to keep dirt out.
For technical drawings and 3-D models, click on a part number.
Self-Adjusting Spring Bushings
A toothed slot lets these bushings contract for insertion into the bore of your sprocket or pulley and then expand for a snug fit. Made of spring steel, they flex under stress and shock and can handle oscillating or slow rotational motion.
For technical drawings and 3-D models, click on a part number.
Quick-Disconnect (QD) Weld-On Bushing-Bore Hubs
These weld-on hubs are drilled, tapped, and taper-bored to make any sprocket, pulley, or gear compatible with our Quick-Disconnect (QD) Bushings.
For technical drawings and 3-D models, click on a part number.
| For Bushing Style | OD | Overall Wd. | Material | Each | |
| SDS | 3 1/2" | 3/4" | Steel | 000000 | 0000000 |
Metal Gears and Gear Racks—14 1/2° Pressure Angle
A former industry standard, 14½° pressure angle gears are often found on older machinery. Made of carbon steel, they have high strength and are better than plastic gears and gear racks for high-load, high-speed, and heavy duty applications.
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.
Gears with machinable bore have a large hub diameter so you can machine them to fit your shaft.
Gears with teeth that are not hardened can be hardened to fit your application. Hardening a gear's teeth increases its wear resistance.
For technical drawings and 3-D models, click on a part number.
Hub | Keyway | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gear Pitch  | Number of Teeth | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Material | Teeth Heat Treatment | Dia. | Wd. | Wd. | Dp. | Set Screw Thread Size | Each | |
Round/Machinable Bore | |||||||||||||||
| 12 | 40 | 3.333" | 3.5" | 3/4" | 1.375" | 5/8"-1 1/2" | 1144 Carbon Steel | Not Hardened | 2.5" | 0.625" | __ | __ | __ | 000000 | 000000 |
Keyed Bore with Set Screw | |||||||||||||||
| 12 | 40 | 3.333" | 3.5" | 3/4" | 1.375" | 5/8" | 1144 Carbon Steel | Not Hardened | 2.5" | 0.625" | 0.188" | 0.094" | 1/4"-20 | 0000000 | 000000 |