About Gears
More
Quick-Disconnect (QD) Bushings
The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.
For technical drawings and 3-D models, click on a part number.
Keyway | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Overall Wd. | Wd. | Dp. | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
Clamp On | ||||||||
SF Style Bushing | ||||||||
| 1/2" | 2 1/2" | 1/8" | 1/16" | 360 | Steel | Clamping Screws | 00000000 | 000000 |
| 5/8" | 2 1/2" | 3/16" | 3/32" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 3/4" | 2 1/2" | 3/16" | 3/32" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 7/8" | 2 1/2" | 3/16" | 3/32" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1" | 2 1/2" | 1/4" | 1/8" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1 1/8" | 2 1/2" | 1/4" | 1/8" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1 3/16" | 2 1/2" | 1/4" | 1/8" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1 1/4" | 2 1/2" | 1/4" | 1/8" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1 3/8" | 2 1/2" | 5/16" | 5/32" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1 7/16" | 2 1/2" | 3/8" | 3/16" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1 1/2" | 2 1/2" | 3/8" | 3/16" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1 5/8" | 2 1/2" | 3/8" | 3/16" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1 11/16" | 2 1/2" | 3/8" | 3/16" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1 3/4" | 2 1/2" | 3/8" | 3/16" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1 7/8" | 2 1/2" | 1/2" | 1/4" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 1 15/16" | 2 1/2" | 1/2" | 1/4" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 2" | 2 1/2" | 1/2" | 1/4" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 2 1/8" | 2 1/2" | 1/2" | 1/4" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 2 3/16" | 2 1/2" | 1/2" | 1/4" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 2 1/4" | 2 1/2" | 1/2" | 1/4" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
| 2 3/8" | 2 1/2" | 5/8" | 3/16" | 360 | Steel | Clamping Screws, Machine Key | 00000000 | 00000 |
| 2 7/16" | 2 1/2" | 5/8" | 3/16" | 360 | Steel | Clamping Screws, Machine Key | 00000000 | 00000 |
| 2 1/2" | 2 1/2" | 5/8" | 3/16" | 360 | Steel | Clamping Screws, Machine Key | 00000000 | 00000 |
| 2 5/8" | 2 1/2" | 5/8" | 1/16" | 360 | Steel | Clamping Screws, Machine Key | 00000000 | 00000 |
| 2 3/4" | 2 1/2" | 5/8" | 1/16" | 360 | Cast Iron | Clamping Screws, Machine Key | 00000000 | 00000 |
| 2 15/16" | 2 1/2" | 3/4" | 1/32" | 360 | Cast Iron | Clamping Screws, Machine Key | 00000000 | 00000 |
Split-Tapered Bushings
The tapered barrel on these bushings is split on both sides, allowing them to contract more tightly around the shaft than quick-disconnect and taper-lock bushings. They're for use with split-tapered sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.
Bushings with a machine key fit into a matching keyway on a sprocket or pulley for high-torque applications.
For technical drawings and 3-D models, click on a part number.
Keyway | |||||||
|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Overall Wd. | Wd. | Dp. | Taper | Fastener Tightening Torque, in.-lbs. | Each | |
Steel | |||||||
Q1 Style Bushing with Machine Key | |||||||
| 1" | 2 1/2" | 1/4" | 1/8" | 3° | 348 | 00000000 | 000000 |
| 1 1/8" | 2 1/2" | 1/4" | 1/8" | 3° | 348 | 00000000 | 00000 |
| 1 3/16" | 2 1/2" | 1/4" | 1/8" | 3° | 348 | 00000000 | 00000 |
| 1 1/4" | 2 1/2" | 1/4" | 1/8" | 3° | 348 | 00000000 | 00000 |
| 1 3/8" | 2 1/2" | 5/16" | 5/32" | 3° | 348 | 00000000 | 00000 |
| 1 1/2" | 2 1/2" | 3/8" | 3/16" | 3° | 348 | 00000000 | 00000 |
| 1 5/8" | 2 1/2" | 3/8" | 3/16" | 3° | 348 | 00000000 | 00000 |
| 1 3/4" | 2 1/2" | 3/8" | 3/16" | 3° | 348 | 00000000 | 00000 |
| 1 7/8" | 2 1/2" | 1/2" | 1/4" | 3° | 348 | 00000000 | 00000 |
| 2" | 2 1/2" | 1/2" | 1/4" | 3° | 348 | 00000000 | 00000 |
Cast Iron | |||||||
Q1 Style Bushing with Machine Key | |||||||
| 40mm | 2 1/2" | 12mm | 3mm | 3° | 348 | 00000000 | 00000 |
| 60mm | 2 1/2" | 18mm | 4mm | 3° | 348 | 00000000 | 00000 |
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.
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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gear Pitch  | Number of Teeth | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Material | Teeth Heat Treatment | Dia. | Wd. | Each | |
Round/Machinable Bore | ||||||||||||
| 6 | 24 | 4" | 4.33" | 1 1/2" | 2.5" | 1 1/8"-1 7/8" | 1144 Carbon Steel | Not Hardened | 3" | 1" | 0000000 | 0000000 |
| 6 | 30 | 5" | 5.33" | 1 1/2" | 2.5" | 1 1/8"-2" | 1144 Carbon Steel | Not Hardened | 3.125" | 1" | 0000000 | 000000 |
| 6 | 36 | 6" | 6.33" | 1 1/2" | 2.5" | 1 1/8"-2 1/8" | 1144 Carbon Steel | Not Hardened | 3.25" | 1" | 00000000 | 000000 |
| 6 | 48 | 8" | 8.33" | 1 1/2" | 2.5" | 1 1/8"-2 1/2" | 1040 Carbon Steel | Not Hardened | 4.125" | 1" | 00000000 | 000000 |