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SC12UU Linear Bearing (12 mm)

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Component Name

SC12UU Linear Bearing (12 mm)

Overview

The SC12UU Linear Bearing is a high-precision, compact linear motion bearing designed for smooth and accurate movement in various applications. This component is suitable for use in robotics, CNC machines, 3D printers, and other precision mechanisms where linear motion is required.

Functionality

The SC12UU Linear Bearing provides linear motion by allowing a shaft to move freely along a single axis while maintaining precise alignment and minimizing friction. This is achieved through the use of a cylindrical bearing surface that rides on a hardened steel shaft, enabling smooth and consistent motion.

Key Features

  • Compact Design: The SC12UU Linear Bearing has a compact design with a diameter of 12 mm, making it ideal for applications where space is limited.
  • High-Precision Movement: The bearing is designed to provide high-precision movement with minimal play and backlash, ensuring accurate positioning and repeatability.
  • Low Friction: The SC12UU Linear Bearing features a low-friction design, reducing the required force for movement and minimizing wear on the bearing and shaft.
  • High-Load Capacity: The bearing is capable of handling moderate to heavy loads, making it suitable for demanding applications.
  • Corrosion-Resistant: The SC12UU Linear Bearing is constructed from high-quality, corrosion-resistant materials, ensuring a long service life even in harsh environments.
  • Easy Installation: The bearing is designed for easy installation and features a simple, compact design that allows for quick and easy mounting.
  • High-Speed Operation: The SC12UU Linear Bearing is capable of high-speed operation, making it suitable for applications that require rapid movement.

Outer Diameter

12 mm

Inner Diameter

8 mm

Length

24 mm

Material

High-carbon steel

Static Load Rating

450 N

Dynamic Load Rating

700 N

Operating Temperature

-20C to 120C

Lubrication

Self-lubricating

Mounting Type

Flange mount

Applications

The SC12UU Linear Bearing is suitable for use in a wide range of applications, including

Robotics

CNC machines

3D printers

Precision mechanisms

Medical devices

Aerospace applications

Conclusion

The SC12UU Linear Bearing is a high-performance, compact linear motion bearing designed for smooth and accurate movement in demanding applications. Its high-precision movement, low friction, and high-load capacity make it an ideal choice for use in robotics, CNC machines, and other precision mechanisms.

Pin Configuration

  • SC12UU Linear Bearing (12 mm) Pinout Explanation
  • The SC12UU Linear Bearing (12 mm) is a widely used component in robotics, CNC machines, and other automation systems. It provides smooth linear motion and is often used in conjunction with stepper motors or servo motors. The bearing has a set of pins that need to be connected properly to facilitate its operation. Here's a point-by-point explanation of each pin and how to connect them:
  • Pinout Structure:
  • The SC12UU Linear Bearing (12 mm) has a total of 4 pins, arranged in a rectangular pattern. The pins are labeled as follows:
  • | Pin Number | Pin Function | Connection |
  • | --- | --- | --- |
  • | 1 | GND (Ground) | Connect to the negative terminal of the power supply or the motor driver's GND pin |
  • | 2 | VCC (Positive Supply) | Connect to the positive terminal of the power supply or the motor driver's VCC pin |
  • | 3 | SIG (Signal) | Connect to the signal output of the motor driver or the control signal from the microcontroller |
  • | 4 | NC (No Connection) | Leave unconnected |
  • Pin-by-Pin Explanation:
  • 1. GND (Ground) - Pin 1
  • Function: Provides a common ground reference for the bearing and the motor driver.
  • Connection: Connect this pin to the negative terminal of the power supply or the motor driver's GND pin. This ensures that the bearing is properly grounded and helps to prevent electrical noise.
  • 2. VCC (Positive Supply) - Pin 2
  • Function: Supplies power to the bearing's internal components.
  • Connection: Connect this pin to the positive terminal of the power supply or the motor driver's VCC pin. The recommended operating voltage for the SC12UU Linear Bearing is 12V to 24V DC.
  • 3. SIG (Signal) - Pin 3
  • Function: Receives the control signal from the motor driver or the microcontroller.
  • Connection: Connect this pin to the signal output of the motor driver or the control signal from the microcontroller. This signal controls the direction and speed of the linear motion.
  • 4. NC (No Connection) - Pin 4
  • Function: Not connected internally.
  • Connection: Leave this pin unconnected. It is not used in the operation of the SC12UU Linear Bearing.
  • Connection Considerations:
  • When connecting the pins, ensure that the wires are securely attached to the bearing's pins and the corresponding pins on the motor driver or power supply.
  • Use a suitable gauge wire that can handle the current requirements of the bearing and motor driver.
  • Keep the wiring tidy and organized to prevent electrical noise and interference.
  • Ensure that the power supply voltage meets the recommended operating voltage range for the SC12UU Linear Bearing.
  • When using a motor driver, refer to its datasheet for specific connection guidance, as the pinouts may vary depending on the driver model.
  • By following these guidelines, you can properly connect the pins of the SC12UU Linear Bearing (12 mm) and ensure smooth operation in your IoT project.

Code Examples

SC12UU Linear Bearing (12 mm) Documentation
Overview
The SC12UU Linear Bearing (12 mm) is a high-precision, compact linear bearing designed for smooth and quiet operation in linear motion applications. It features a 12 mm internal diameter, making it suitable for a wide range of IoT projects, including robotics, automation, and CNC machines.
Technical Specifications
Internal diameter: 12 mm
 Outer diameter: 22 mm
 Length: 32 mm
 Dynamic load rating: 140 N
 Static load rating: 250 N
 Material: Stainless steel and POM (Polyoxymethylene)
 Operating temperature: -20C to 120C
Using the SC12UU Linear Bearing in IoT Projects
The SC12UU Linear Bearing can be used in various IoT projects, including robotics, automation, and CNC machines. Here are a few code examples to demonstrate its usage in different contexts:
Example 1: Arduino Robotics Project
In this example, we'll use the SC12UU Linear Bearing in a robotic arm project to move a platform along a linear rail.
```cpp
#include <Arduino.h>
#include <Stepper.h>
#define STEPS_PER_REVOLUTION 200
#define LINEAR_BEARING_STEPS 1600
Stepper myStepper(STEPS_PER_REVOLUTION, 8, 9, 10, 11);
void setup() {
  myStepper.setSpeed(100);
}
void loop() {
  // Move the platform 10 mm to the right
  myStepper.move(LINEAR_BEARING_STEPS  10 / 12);
  delay(1000);
// Move the platform 5 mm to the left
  myStepper.move(-LINEAR_BEARING_STEPS  5 / 12);
  delay(1000);
}
```
Example 2: Python CNC Machine Controller
In this example, we'll use the SC12UU Linear Bearing in a CNC machine project to control the X-axis movement.
```python
import pygrbl
# Initialize the CNC machine controller
cnc = pygrbl.PyGrbl()
# Home the X-axis
cnc.send_command("G28 X")
# Move the X-axis 20 mm to the right
cnc.send_command("G1 X20 F100")
# Move the X-axis 10 mm to the left
cnc.send_command("G1 X-10 F100")
```
Example 3: Raspberry Pi Automation Project
In this example, we'll use the SC12UU Linear Bearing in an automation project to control a linear actuator using a Raspberry Pi.
```python
import RPi.GPIO as GPIO
import time
# Set up the GPIO pins for the linear actuator
GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.OUT)
GPIO.setup(23, GPIO.OUT)
# Move the linear actuator 15 mm to the right
GPIO.output(17, GPIO.HIGH)
GPIO.output(23, GPIO.LOW)
time.sleep(15 / 10)  # 10 mm/s speed
GPIO.output(17, GPIO.LOW)
GPIO.output(23, GPIO.LOW)
# Move the linear actuator 5 mm to the left
GPIO.output(17, GPIO.LOW)
GPIO.output(23, GPIO.HIGH)
time.sleep(5 / 10)  # 10 mm/s speed
GPIO.output(17, GPIO.LOW)
GPIO.output(23, GPIO.LOW)
```
These examples demonstrate how to use the SC12UU Linear Bearing in various IoT projects, including robotics, automation, and CNC machines. The bearing's high precision and smooth operation make it an ideal choice for applications requiring accurate linear motion.