Rotary Motion Guide
Rotary systems involve rotating mechanical parts such as motors, sprockets, and pulleys. Learn the basics about rotary motion here.
Quantity Available: 90
| Qty | Price | 
|---|---|
| 5 | $4.27 | 
| 10 | $4.09 | 
Pulley for GT5 timing belts. Machined from aluminum.
| Physical Properties | |
|---|---|
| Inner Diameter | 8 mm | 
| Number of Teeth | 34 | 
| 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 GT5 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 | 
			![]() 275mm GT5x15mm Timing Belt 
			 | 
			$3.50 | GT5 | 275 mm | 444 N | 
			![]() 350mm GT5x15mm Timing Belt 
			 | 
			$3.00 | GT5 | 350 mm | 444 N | 
			![]() 420mm GT5x15mm Timing Belt 
			 | 
			$3.75 | GT5 | 420 mm | 444 N | 
			![]() 500mm GT5x15mm Timing Belt 
			 | 
			$3.75 | GT5 | 500 mm | 444 N | 
			![]() 600mm GT5x15mm Timing Belt 
			 | 
			$5.55 | GT5 | 600 mm | 444 N | 
			![]() 770mm GT5x15mm Timing Belt 
			 | 
			$5.55 | GT5 | 770 mm | 444 N | 
			![]() 850mm GT5x15mm Timing Belt 
			 | 
			$6.70 | GT5 | 850 mm | 444 N | 
			![]() 1000mm GT5x15mm Timing Belt 
			 | 
			$7.40 | GT5 | 1 m | 444 N | 
			![]() 1400mm GT5x15mm Timing Belt 
			 | 
			$9.65 | GT5 | 1.4 m | 444 N | 
			![]() 1715mm GT5x15mm Timing Belt 
			 | 
			$11.85 | GT5 | 1.7 m | 444 N | 
			![]() GT5x15mm Timing Belt Open 
			 | 
			$5.20/Meter | GT5 | — | 444 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 | 
			![]() GT5 Pulley with 0.25" Bore and 12 Teeth  
			 | 
			$2.75 | 1⁄4″ | 12 | 
			![]() GT5 Pulley with 8mm Bore and 12 Teeth 
			 | 
			$3.00 | 8 mm | 12 | 
			![]() GT5 Pulley with 8mm Bore and 24 Teeth 
			 | 
			$3.15 | 8 mm | 24 | 
			![]() GT5 Pulley with 8mm Bore and 34 Teeth 
			 | 
			$4.45 | 8 mm | 34 | 
			![]() GT5 Pulley with 8mm Bore and 50 Teeth 
			 | 
			$6.70 | 8 mm | 50 | 
			![]() GT5 Pulley with 9mm Bore and 50 Teeth 
			 | 
			$7.40 | 9 mm | 50 | 
			![]() GT5 Pulley with 10mm Bore and 16 Teeth (3mm Keyway) 
			 | 
			$3.00 | 10 mm | 16 | 
			![]() GT5 Pulley with 10mm Bore and 16 Teeth (4mm Keyway) 
			 | 
			$3.50 | 10 mm | 16 | 
			![]() GT5 Pulley with 10mm Bore and 34 Teeth 
			 | 
			$5.20 | 10 mm | 34 | 
			![]() GT5 Pulley with 10mm Bore and 50 Teeth 
			 | 
			$7.40 | 10 mm | 50 | 
			![]() GT5 Pulley with 11mm Bore and 34 Teeth 
			 | 
			$5.20 | 11 mm | 34 | 
			![]() GT5 Pulley with 11mm Bore and 50 Teeth 
			 | 
			$7.40 | 11 mm | 50 | 
			![]() 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 | 
			![]() GT5 Pulley with 0.5" Bore and 16 Teeth 
			 | 
			$3.75 | 1⁄2″ | 16 | 
			![]() GT5 Pulley with 14mm Bore and 50 Teeth 
			 | 
			$7.40 | 14 mm | 50 | 
			![]() GT5 Pulley with 5/8" Bore and 24 Teeth 
			 | 
			$3.70 | 5⁄8″ | 24 | 
			![]() GT5 Pulley with 17mm Bore and 34 Teeth 
			 | 
			$5.00 | 17 mm | 34 | 
			![]() GT5 Pulley with 17mm Bore and 50 Teeth 
			 | 
			$7.40 | 17 mm | 50 | 
			![]() GT5 Pulley with 17mm Bore and 72 Teeth 
			 | 
			$14.50 | 17 mm | 72 | 
			![]() GT5 Pulley with 19mm Bore and 50 Teeth 
			 | 
			$7.40 | 19 mm | 50 | 
			![]() GT5 Pulley with 19mm Bore and 72 Teeth 
			 | 
			$12.95 | 19 mm | 72 | 
			![]() GT5 Pulley with 24mm Bore and 50 Teeth 
			 | 
			$7.40 | 24 mm | 50 | 
			![]() GT5 Pulley with 24mm Bore and 72 Teeth 
			 | 
			$12.95 | 24 mm | 72 |