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
Quantity Available: 38m
| Length | Price |
|---|---|
| 5m | $6.24 |
| 10m | $5.98 |
This shaft is made of 1045 carbon steel, precision ground to exactly 12mm, and chrome plated. The production process is the same as linear shaft - except the shaft is not case hardened, allowing you to easily drill and machine the shaft.
12mm is one of the 'core' shaft diameters in our mechanical product line - in addition to 8mm, 17mm and 25mm. 12mm is a great diameter for higher power belt transmissions (GT5) and #25 chain systems.
We also sell the 12mm shaft with a full length keyway.
If you need to connect this shaft to a motor or another device with a shaft, you can use a shaft coupler:
| Product | Physical Properties | |||||
|---|---|---|---|---|---|---|
| Part Number | Price | Inner Diameter | Material | Coupling Rated Torque | Coupling Rated Speed | Torsional Stiffness |
 Jaw Coupling Half 12mm Series 12
|
$3.60 | 12 mm | Aluminum | 35.7 kg·cm | 12000 RPM | — |
 Jaw Coupling Half 12mm Series 24
|
$6.85 | 12 mm | Aluminum | 611.8 kg·cm | 4000 RPM | — |
If you're using a rotary system that requires a lot of torque, you may be interested in pulleys and sprockets. By using a two pulleys or sprockets of different sizes, you can increase the gear ratio of the system. Pulleys and sprockets can also be used to transmit rotation over a long distance. For more guidance on building a transmission system, visit our Rotary Motion Guide. Here is a list of our 12mm bore pulleys and sprockets:
| Product | Physical Properties | ||
|---|---|---|---|
| Part Number | Price | Inner Diameter | Number of Teeth |
 #25 Chain Sprocket with 12mm Bore and 12 Teeth
|
$3.25 | 12 mm | 12 |
 #25 Chain Sprocket with 12mm Bore and 18 Teeth
|
$3.75 | 12 mm | 18 |
 #25 Chain Sprocket with 12mm Bore and 32 Teeth
|
$5.00 | 12 mm | 32 |
 #25 Chain Sprocket with 12mm Bore and 52 Teeth
|
$8.00 | 12 mm | 52 |
 GT2 Pulley with 12mm Bore and 36 Teeth
|
$3.00 | 12 mm | 36 |
 GT2 Pulley with 12mm Bore and 44 Teeth
|
$3.00 | 12 mm | 44 |
 GT2 Pulley with 12mm Bore and 60 Teeth
|
$3.55 | 12 mm | 60 |
 GT2 Pulley with 12mm Bore and 80 Teeth
|
$4.45 | 12 mm | 80 |
 #40 Chain Idler Sprocket 12mm Bore with Spacers
|
$8.00 | 12 mm | 13 |
 #40 Chain Sprocket with 12mm Bore and 9 Teeth
|
$4.25 | 12 mm | 9 |
 #40 Chain Sprocket with 12mm Bore and 14 Teeth
|
$4.50 | 12 mm | 14 |
 #40 Chain Sprocket with 12mm Bore and 20 Teeth
|
$7.00 | 12 mm | 20 |
 GT5 Idler Pulley 12mm Bore with Spacers
|
$7.00 | 12 mm | 30 |
 GT5 Pulley with 12mm Bore and 16 Teeth
|
$3.50 | 12 mm | 16 |
 GT5 Pulley with 12mm Bore and 24 Teeth
|
$4.00 | 12 mm | 24 |
 GT5 Pulley with 12mm Bore and 34 Teeth
|
$5.00 | 12 mm | 34 |
 GT5 Pulley with 12mm Bore and 50 Teeth
|
$7.40 | 12 mm | 50 |
 GT5 Pulley with 12mm Bore and 72 Teeth
|
$12.95 | 12 mm | 72 |
Systems with heavy loads or pulley/sprocket assemblies often put a lot of sideways strain on the shaft. In such a system, you can use rotary bearings to protect and support the shaft:
| Product | Physical Properties | Mechanical Properties | |||
|---|---|---|---|---|---|
| Part Number | Price | Inner Diameter | Bearing Type | Static Load | Dynamic Load |
 Flanged Rotary Bearing for 12mm Shaft
|
$4.00 | 12 mm | Rotary Shaft (Flanged) | 2.4 kN | 5.1 kN |
 Pillow Block Rotary Bearing for 12mm Shaft
|
$4.00 | 12 mm | Rotary Shaft (Pillow Block) | 2.4 kN | 5.1 kN |
| Physical Properties | |
|---|---|
| Diameter | 12 mm |
| Customs Information | |
| Canadian HS Export Code | 8483.10.00 |
| American HTS Import Code | 8483.10.50.00 |
| Country of Origin | CA (Canada) |
