What Is A Timing Belt?
Timing belt is a mechanical transmission component that is widely used in industrial equipment, automotive engines and automation industry. It achieves accurate power transmission through designed tooth which featured with high efficiency, low noise, wear resistance and other merits.
How To Identify And Measure Timing Belt?
Synchronous belt is a consumable, and once there is a missing tooth, damage, distortion, etc., the belt needs to be replaced in time, so it is particularly important to understand how to measure the toothed belt specification. There are many sizes and models of the synchronous belt, and the measurement of the synchronous belt is achieved by teeth, pitch, pitch length and width.
Tooth Profile
Timing belt generally has three regular tooth shape, trapezoid, circular arc and special tooth shape. Identify the tooth shape and count the number of teeth.
Pitch
Timing belt pitch refers to the center distance of one tooth to adjacent teeth, which needs to be measured correctly as follows:
- Use a vernier caliper to measure the distance between the two adjacent tooth of the timing belt while maintaining a vertical state.
- The clampingshould be measured close to the top of the tooth and ensure that the upper and lower parts of the two tooth are completely aligned when measuring.
- The measurement should be carried out in at least ten places of the toothedbelt to ensure the accuracy and consistency of the measurement result.
- In order to avoid errors, some signs can be made on the synchronous belt to mark each measurement point.
After the measurement is completed, sum up the values measured at different measuring points and then divided by the total number of points to get the average pitch value of the timing belt.
Identify the belt type by tooth profile and belt pitch, finally verify the belt model by measuring the belt thickness. Refer to timing belt pitch chart for synchronous belt model number.
Length
Timing belt length specially referred to belt pitch length. To calculate belt length, take the total number of tooth and multiply that by the belt pitch value (timing belt length= belt pitch * teeth number). For example, if the belt pitch is 8mm, total 30 teeth, so the belt length is 240mm.
Width
The width of the timing belt refers to the distance between one edge of the belt smooth surface and another edge. Please note whether the belt is worn when measuring.
Conclusion
Identify belt model and pitch length through correct measurement and find the toothed belt that matches the equipment.
