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: 626
| Qty | Price |
|---|---|
| 5 | $3.60 |
| 10 | $3.45 |
Hardened steel sprocket for quarter inch (1/4") roller chain. It has a 12mm bore with keyway, set screws and key.
This sprocket is compatible with series #25 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 |
 #25 Roller Chain
|
$5.95/Meter |
 #25 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:
| Product | Physical Properties | |
|---|---|---|
| Part Number | Price | Diameter |
 12mm Precision Ground Rotary Shaft (no keyway)
|
$6.50/Meter | 12 mm |
 12mm Precision Ground Rotary Shaft (w/ keyway)
|
$45.00/Meter | 12 mm |
Stepper motors have high torque and precise position control. This sprocket can connect to the main shaft of the following stepper motors:
| Product | Physical Properties | Motor Properties | Electrical Properties | Gearbox Properties | |||
|---|---|---|---|---|---|---|---|
| Part Number | Price | Shaft Diameter | Mounting Plate Size | Rated Torque | Recommended Voltage | Gearbox Type | Gear Ratio |
 NEMA23 - 1.8 Degree - 2.8A Stepper - 4.25:1 Gearbox
|
$70.00 | 12 mm | NEMA - 23 | 46.6 kg·cm | 24 V DC | Planetary | 4 1⁄4 : 1 |
 NEMA23 - 1.8 Degree - 2.8A Stepper - 15:1 Gearbox
|
$72.00 | 12 mm | NEMA - 23 | 150 kg·cm | 24 V DC | Planetary | 15 3⁄10 : 1 |
 NEMA23 - 1.8 Degree - 2.8A Stepper - 77:1 Gearbox
|
$74.00 | 12 mm | NEMA - 23 | 240 kg·cm | 24 V DC | Planetary | 76 49⁄64 : 1 |
 NEMA34 - 1.8 Degree - 4A Stepper - Gearless
|
$60.00 | 12 mm | NEMA - 34 | 30 kg·cm | 30 V DC | — | — |
Brushless DC motors combine smooth rotation with accurate position control. This sprocket can connect to the following BLDC Motors:
| Product | Physical Properties | Motor Properties | ||
|---|---|---|---|---|
| Part Number | Price | Shaft Diameter | Rated Torque | Rated Speed |
 NEMA23 - Brushless DC Motor - 4.3:1 Gearbox
|
$84.00 | 12 mm | 10.2 kg·cm | 930 RPM |
 NEMA23 - Brushless DC Motor - 15:1 Gearbox
|
$86.00 | 12 mm | 33.7 kg·cm | 250 RPM |
 NEMA23 - Brushless DC Motor - 23:1 Gearbox
|
$88.00 | 12 mm | 51 kg·cm | 170 RPM |
 NEMA23 - Brushless DC Motor - 47:1 Gearbox
|
$95.00 | 12 mm | 112.2 kg·cm | 82 RPM |
 NEMA23 - Brushless DC Motor - 96:1 Gearbox
|
$98.00 | 12 mm | 214.1 kg·cm | 41 RPM |
DC motors are the simplest and most common option for rotary motion in many projects. This sprocket can connect to the main shaft of the following DC motors:
| Product | Physical Properties | Motor Properties | Electrical Properties | Gearbox Specifications | ||
|---|---|---|---|---|---|---|
| Part Number | Price | Shaft Diameter | Rated Torque | Rated Voltage | Gearbox Type | Gear Ratio |
 24V/5.1Kg-cm/588RPM 4.25:1 DC Gear Motor
|
$69.00 | 12 mm | 4.4 kg·cm | 24 V DC | Planetary | 4 1⁄4 : 1 |
 24V/12.2Kg-cm/772RPM/4.25:1 DC Gear Motor
|
$80.00 | 12 mm | 12.2 kg·cm | 24 V DC | Planetary | 4 1⁄4 : 1 |
 24V/14.2Kg-cm/192RPM 13:1 DC Gear Motor
|
$66.00 | 12 mm | 13.3 kg·cm | 24 V DC | Planetary | 12 24⁄25 : 1 |
 24V/45Kg-cm/182RPM/18:1 DC Gear Motor
|
$82.00 | 12 mm | 47 kg·cm | 24 V DC | Planetary | 18 : 1 |
 24V/50.9Kg-cm/53RPM 47:1 DC Gear Motor
|
$72.00 | 12 mm | 43.8 kg·cm | 24 V DC | Planetary | 46 82⁄125 : 1 |
 24V/153Kg-cm/50RPM/65:1 DC Gear Motor
|
$84.00 | 12 mm | 153 kg·cm | 24 V DC | Planetary | 65 : 1 |
 24V/82.6Kg-cm/33RPM 76:1 DC Gear Motor
|
$72.00 | 12 mm | 71.4 kg·cm | 24 V DC | Planetary | 76 49⁄64 : 1 |
 24V/173.3Kg-cm/15RPM 168:1 DC Gear Motor
|
$76.00 | 12 mm | 136.6 kg·cm | 24 V DC | Planetary | 167 601⁄625 : 1 |
| Physical Properties | |
|---|---|
| Inner Diameter | 12 mm |
| Keyway Width | 4 mm |
| Number of Teeth | 18 |
| Sprocket Series | # 25 |
| Hex Key Size Required | 2 mm |
| 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 |
 #25 Chain Sprocket with 8mm Bore and 10 Teeth
|
$3.00 | 8 mm | 10 | # 25 |
 #25 Chain Sprocket with 9mm Bore and 18 Teeth
|
$3.75 | 9 mm | 18 | # 25 |
 #25 Sprocket with 10mm Bore and 12 Teeth
|
$4.00 | 10 mm | 12 | # 25 |
 #25 Chain Sprocket 10mm Bore 32 Teeth 3mm Key
|
$5.00 | 10 mm | 32 | # 25 |
 #25 Chain Sprocket 10mm Bore 32 Teeth 4mm Key
|
$5.00 | 10 mm | 32 | # 25 |
 #25 Chain Sprocket with 11mm Bore and 32 Teeth
|
$5.00 | 11 mm | 32 | # 25 |
 #25 Chain Idler Sprocket 12mm Bore with Spacers
|
$7.00 | 12 mm | 22 | # 25 |
 #25 Chain Sprocket with 12mm Bore and 12 Teeth
|
$3.25 | 12 mm | 10 | # 25 |
 #25 Chain Sprocket with 12mm Bore and 18 Teeth
|
$3.75 | 12 mm | 18 | # 25 |
 #25 Chain Sprocket with 12mm Bore and 32 Teeth
|
$5.00 | 12 mm | 32 | # 25 |
 #25 Chain Sprocket with 12mm Bore and 52 Teeth
|
$8.00 | 12 mm | 52 | # 25 |
 #25 Chain Sprocket with 0.5" Bore and 12 Teeth
|
$3.50 | 1⁄2″ | 10 | # 25 |