Rotary Motion Guide
Rotary systems involve rotating mechanical parts such as motors, sprockets, and pulleys. Learn the basics about rotary motion here.
Products for USB Sensing and Control
Idler sprockets are standard sprockets with an integrated bearing. This allows them to spin freely without impeding the rotation in your system. This is useful for when you want an adjustable way to tension a chain system that doesn't impact the movement of the chain or place additional load on the motor.
Note: A small amount of Loctite can be used on the shaft to prevent the idler sprocket from shifting laterally on the shaft if this is an issue.
This sprocket is compatible with series #40 chain. The amount of chain required depends on the desired distance between your two sprockets; for installation details see the Rotary Motion Guide.
| Product | |
|---|---|
| Part Number | Price |
 #40 Roller Chain
|
$4.45/Meter |
 #40 Roller Chain Link Kit
|
$1.50 |
If you're building a rotary transmission system of any kind, chances are you'll need some rotary shaft. Here's a list of rotary shaft compatible with this sprocket:
| Physical Properties | |
|---|---|
| Inner Diameter | 12 mm |
| Number of Teeth | 13 |
| Sprocket Series | # 40 |
| Customs Information | |
| Canadian HS Export Code | 8483.90.00 |
| American HTS Import Code | 8483.90.10.50 |
| Country of Origin | CN (China) |
| Product | Physical Properties | |||
|---|---|---|---|---|
| Part Number | Price | Inner Diameter | Number of Teeth | Sprocket Series |
 #40 Chain Idler Sprocket 12mm Bore with Spacers
|
$8.00 | 12 mm | 13 | # 40 |
 #40 Chain Sprocket with 12mm Bore and 9 Teeth
|
$4.25 | 12 mm | 9 | # 40 |
 #40 Chain Sprocket with 12mm Bore and 14 Teeth
|
$4.50 | 12 mm | 14 | # 40 |
 #40 Chain Sprocket with 12mm Bore and 20 Teeth
|
$7.00 | 12 mm | 20 | # 40 |
 #40 Chain Sprocket with 0.5" Bore and 9 Teeth
|
$4.00 | 1⁄2″ | 9 | # 40 |
 #40 Chain Sprocket with 14mm Bore and 9 Teeth
|
$4.50 | 14 mm | 9 | # 40 |
 #40 Chain Sprocket with 14mm Bore and 20 Teeth
|
$6.50 | 14 mm | 20 | # 40 |
 #40 Chain Sprocket with 5/8" Bore and 9 Teeth
|
$4.50 | 5⁄8″ | 9 | # 40 |
 #40 Chain Sprocket with 17mm Bore and 20 Teeth
|
$7.00 | 17 mm | 20 | # 40 |
 #40 Chain Sprocket with 17mm Bore and 40 Teeth
|
$20.00 | 17 mm | 40 | # 40 |
 #40 Chain Sprocket with 19mm Bore and 20 Teeth
|
$7.00 | 19 mm | 20 | # 40 |
 #40 Chain Sprocket with 24mm Bore and 20 Teeth
|
$7.00 | 24 mm | 20 | # 40 |
 #40 Chain Sprocket with 25mm Bore and 20 Teeth
|
$7.00 | 25 mm | 20 | # 40 |
 #40 Chain Sprocket with 25mm Bore and 40 Teeth
|
$17.50 | 25 mm | 40 | # 40 |
 #40 Chain Sprocket with 25mm Bore and 60 Teeth
|
$27.00 | 25 mm | 60 | # 40 |
