SCS8UU Linear Block Bearing 8mm

8mm Bore Pillow Block Mounted Bearing is often suited to support rotating shaft applications.

CNC shield for arduino works as a controller for CNC type milling machines,
3D printers, laser cutters .
CNC Shield Expansion Plate V3 Engraver 3D Printer features:

• 4 compatible sockets for use of A4988 stepper motor controllers (PAP), DRV8825, other compatible
• 4 support axes X, Y, Z, A
• 2 limit switches for each axis (6 in total)

2x Cable Alligator Clip Black and Red Multimeter features:
- Length: 90cm
- Colors: red and black
- Quantity: 2 Cables

Tower Pro Micro Servo 9g SG90 features:
- Operating voltage: 3.0-7.2V
- Speed (4.8V without load): 0.12sec / 60 degrees
- Strength: 1.2kg / 42.3oz (4.8V); 1.6 kg / 56.4oz (6.0V)
- Working temperature: -30 to +60 degrees C
- Cable length: approx. 23cm
- Includes photo accessories and screws
- Dimensions: 22x11.5x27mm

Pulley GT2 20 Teeth 6mm Aluminium Pulley 3D Printer Reprap features:
- Number of teeth: 20
- Pitch: 2mm
- Material: Aluminum alloy
- Outside diameter: 18mm
- Inner hole: 5mm
- Use with strap: 6mm and 6.35mm
- Ideal to fix on the axis of the motors of your 3D printer

It is one of the most popular stepper motors with 200 steps per turn and a maximum load of 4.28 kg/cm. It comes with a 1m cable. We have the best stepper motors at the best prices! 

Fan 12V 2x Cables PC CPU case features:
- Voltage: 12V
- Consumption: 0.28A
- Screw diameter: 3.5mm
- Life time useful: 30,000 hours
- Operating temperature: -10 ° C to 65 ° C
- Cable length: 24.5cm
- Dimensions: 80mm x 80mm x 15mm

It is very easy to make it work with an Arduino, PIC or any other microcontroller.
In its output pin we will be able to measure the PWM pulse width depending on the distance of the obstacle.
HC-SR04 Ultrasonic Sensor Distance Measuring Module features:
- Supply voltage: 5V (4.5V- 6V)
- Consumption: 30 mA typical, (35 mA max)
- Interface: VCC , GND, Signal
- Range: 2 cm to 3 meters
- Angle 15º
- LED indicator of measurement in progress
- Frequency: 40 kHz for 200 µs - Size: 30mm x 20mm
- Quantity: 1 unit
Useful links for Arduino / Raspberry programming and projects with boards Arduino / Raspberry:
Automatic robot operation with obstacle detection />