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: 72
| Qty | Price |
|---|---|
| 5 | $2.88 |
| 10 | $2.76 |
Pulley for GT2 timing belts. Machined from aluminum.
This pulley can be used with any GT2 series belt. The size of belt required depends on the desired distance between your two pulleys; for installation details see the Rotary Motion Guide.
| Product | Physical Properties | |||
|---|---|---|---|---|
| Part Number | Price | Pulley Series | Belt Circumference | Working Tensile Strength |
 120mm GT2x6mm Timing Belt
|
$1.50 | GT2 | 120 mm | 27 N |
 156mm GT2x6mm Timing Belt
|
$1.50 | GT2 | 156 mm | 27 N |
 184mm GT2x6mm Timing Belt
|
$1.50 | GT2 | 184 mm | 27 N |
 220mm GT2x6mm Timing Belt
|
$1.50 | GT2 | 220 mm | 27 N |
 276mm GT2x6mm Timing Belt
|
$1.50 | GT2 | 276 mm | 27 N |
 330mm GT2x6mm Timing Belt
|
$3.00 | GT2 | 330 mm | 27 N |
 392mm GT2x6mm Timing Belt
|
$3.35 | GT2 | 392 mm | 27 N |
 560mm GT2x6mm Timing Belt
|
$5.20 | GT2 | 560 mm | 27 N |
 GT2x6mm Timing Belt Open
|
$2.25/Meter | GT2 | — | 27 N |
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 pulley:
| Product | Physical Properties | |
|---|---|---|
| Part Number | Price | Diameter |
 8mm Precision Ground Rotary Shaft
|
$6.50/Meter | 8 mm |
Ball screws provide an easy means of converting rotary motion into precise linear positioning. You can use this pulley to connect a transmission system to the following ball screws:
| Product | Physical Properties | |
|---|---|---|
| Part Number | Price | Length |
 Ball Screw SFU01204 x 200mm w/Nut
|
$33.30 | 200 mm |
 Ball Screw SFU01204 x 300mm w/Nut
|
$37.00 | 300 mm |
 Ball Screw SFU01204 x 400mm w/Nut
|
$40.70 | 400 mm |
 Ball Screw SFU01204 x 500mm w/Nut
|
$44.40 | 500 mm |
 Ball Screw SFU01204 x 600mm w/Nut
|
$46.65 | 600 mm |
 Ball Screw SFU01204 x 800mm w/Nut
|
$53.30 | 800 mm |
 Ball Screw SFU01204 x 1000mm w/Nut
|
$59.20 | 1 m |
Stepper motors have high torque and precise position control. This pulley 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 |
 NEMA17 - 1.8 Degree - 1.68A Stepper - 5.18:1 Gearbox
|
$40.00 | 8 mm | NEMA - 17 | 18 kg·cm | 24 V DC | Planetary | 5 2⁄11 : 1 |
 NEMA17 - 1.8 Degree - 1.68A Stepper - 14:1 Gearbox
|
$42.00 | 8 mm | NEMA - 17 | 30 kg·cm | 24 V DC | Planetary | 13 212⁄289 : 1 |
 NEMA17 - 1.8 Degree - 1.68A Stepper - 27:1 Gearbox
|
$44.00 | 8 mm | NEMA - 17 | 30 kg·cm | 24 V DC | Planetary | 26 103⁄121 : 1 |
 NEMA17 - 1.8 Degree - 1.68A Stepper - 51:1 Gearbox
|
$46.00 | 8 mm | NEMA - 17 | 48 kg·cm | 24 V DC | Planetary | 50 4397⁄4913 : 1 |
 NEMA17 - 1.8 Degree - 1.68A Stepper - 100:1 Gearbox
|
$48.00 | 8 mm | NEMA - 17 | 48 kg·cm | 24 V DC | Planetary | 99 1044⁄2057 : 1 |
Brushless DC motors combine smooth rotation with accurate position control. This pulley can connect to the following BLDC Motors:
| Product | Physical Properties | Motor Properties | ||
|---|---|---|---|---|
| Part Number | Price | Shaft Diameter | Rated Torque | Rated Speed |
 NEMA17 - Brushless DC Motor - 4.9:1 Gearbox
|
$72.00 | 8 mm | 5.6 kg·cm | 810 RPM |
 NEMA17 - Brushless DC Motor - 15:1 Gearbox
|
$74.00 | 8 mm | 16.3 kg·cm | 260 RPM |
 NEMA17 - Brushless DC Motor - 24:1 Gearbox
|
$76.00 | 8 mm | 24.5 kg·cm | 166 RPM |
 NEMA17 - Brushless DC Motor - 56:1 Gearbox
|
$80.00 | 8 mm | 61.2 kg·cm | 70 RPM |
 NEMA23 - Brushless DC Motor - Gearless
|
$42.00 | 8 mm | 2.9 kg·cm | 4000 RPM |
 NEMA23 - Brushless DC Motor - Gearless
|
$65.00 | 8 mm | 5 kg·cm | 4000 RPM |
DC motors are the simplest and most common option for rotary motion in many projects. This pulley 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 |
 12V/0.5Kg-cm/670RPM 3.7:1 DC Gear Motor
|
$38.00 | 8 mm | 540 g·cm | 12 V DC | Planetary | 3 12⁄17 : 1 |
 12V/1.9Kg-cm/175RPM 14:1 DC Gear Motor
|
$42.00 | 8 mm | 1.9 kg·cm | 12 V DC | Planetary | 13 212⁄289 : 1 |
 12V/6.6Kg-cm/49RPM 51:1 DC Gear Motor
|
$43.00 | 8 mm | 6.6 kg·cm | 12 V DC | Planetary | 50 801⁄895 : 1 |
 12V/6.6Kg-cm/49RPM 51:1 DC Gear Motor
|
$33.00 | 8 mm | 6.6 kg·cm | 12 V DC | Planetary | 50 801⁄895 : 1 |
 12V/17.3Kg-cm/18RPM 139:1 DC Gear Motor
|
$43.00 | 8 mm | 17.3 kg·cm | 12 V DC | Planetary | * 139 184⁄1221 : 1 |
 24V/2.5Kg-cm/3280RPM DC Motor
|
$40.00 | 8 mm | 3.3 kg·cm | 24 V DC | — | — |
| Physical Properties | |
|---|---|
| Inner Diameter | 8 mm |
| Number of Teeth | 44 |
| Hex Key Size Required | 2 mm |
| Customs Information | |
| Canadian HS Export Code | 8483.90.00 |
| American HTS Import Code | 8483.90.50.90 |
| Country of Origin | CN (China) |
| Product | Physical Properties | ||
|---|---|---|---|
| Part Number | Price | Inner Diameter | Number of Teeth |
 GT2 Pulley with 5mm Bore and 16 Teeth
|
$2.50 | 5 mm | 16 |
 GT2 Pulley with 6mm Bore and 22 Teeth
|
$2.50 | 6 mm | 22 |
 GT2 Pulley with 0.25" Bore and 22 Teeth
|
$3.00 | 1⁄4″ | 22 |
 GT2 Idler Pulley 8mm Bore with Spacers
|
$5.50 | 8 mm | 44 |
 GT2 Idler Pulley with 8mm Bore and 44 Teeth
|
$1.75 | 8 mm | 44 |
 GT2 Pulley with 8mm Bore and 22 Teeth
|
$2.75 | 8 mm | 22 |
 GT2 Pulley with 8mm Bore and 32 Teeth
|
$2.50 | 8 mm | 32 |
 GT2 Pulley with 8mm Bore and 44 Teeth
|
$3.00 | 8 mm | 44 |
 GT2 Pulley with 8mm Bore and 60 Teeth
|
$3.00 | 8 mm | 60 |
 GT2 Pulley with 8mm Bore and 80 Teeth
|
$4.00 | 8 mm | 80 |
 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 |