Rotary Motion Guide
Rotary systems involve rotating mechanical parts such as motors, sprockets, and pulleys. Learn the basics about rotary motion here.
Quantity Available: 56
| Qty | Price | 
|---|---|
| 5 | $2.88 | 
| 10 | $2.76 | 
Pulley for GT2 timing belts. Machined from aluminum.
| 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 | 8483.90.50.80 | 
| Country of Origin | CN (China) | 
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 | $90.00 | 8 mm | 24.5 kg·cm | 166 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 | — | — | 
| 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 |