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In industry automation and conveyor systems, open-ended timing belt is widely used because of their flexibility and customizability. But when we need to joint them into a closed loop, many people often wonder whether there is a simple, efficient and quick connection method? Yes, quick pin splice is fast and simple connection which greatly reduce production stop. This article will give you a comprehensive explanation of how to use quick pin splice to connect open-ended toothed belt.
What is quick pin splice?
Quick pin splice is a mechanical joint method without hot melt or glue. It processes the two ends of the timing belt into an “interlock finger structure” and then insert the threaded stainless steel pin through the preset hole position to firmly connect the belt, forming a removable closed loop.
Materials Preparation before Installation
- Timing belt with preset holes at both ends
- Stainless steel pins
- Needle-nose pliers or a small hammer
- Scissors or cutter (to adjust belt length, if necessary)
- Work gloves (to protect hands)
Step-by-Step: How to Connect Toothed Belt by Quick Pin Splice
- Confirm belt direction andspecification
Ensure the belt tooth profile, pitch and length are consistent with the equipment specifications, and ensure the belt without any damage. - Insertthe timing belt into the device
Prepare the joint position by by looping the belt around the drive and driven pulleys.
Tip: Due to the synchronous belt is open-ended shape, it can be loaded into device before joint, to avoid disassembly of the equipment. - Align the holes at both ends of the joint
Align both ends of the belt so that the per-embeddedpin holes are accurately matched and the tooth shape is consistent. - Insert steel needle (latch)
Insert the pin through each aligned hole from one side, section by section until all the holes is filled by steel pins.
Use needle-nose pliers to assist in pin through.
Ensure that the pin is fully inserted and and sits flush without bending or lifting. - Check whether the pin ends are flush
The pins should not protrude excessively or be recessed. Use pliers to make fine-tune or cut off any excess length. - Tighten the toothed belt and adjust the tension
Adjust the belt to appropriate tension by a tensioning pulley or device to ensure stable transmission and prevent tooth slippage. - Perform an idle test on the equipment
Start and run the equipment for a fewminutes without load. Observe the belt to ensure it operates smoothly, without abnormal sound or deviation.
Installation Precautions
- Do not repeatedly insert and remove the pins, as this may loosen the holes and reduce service life.
- Do not forcefully pull the belt to avoid tearing the steel pin holes.
- High-speed or heavy-load occasions are recommended to use connection glue for reinforcement (as needed)
FAQ
1.Is quick pin splice stronger than hot melt joint?
Not really. Quick pin splice is designed for faster installation and easier maintenance. While its joint strength is sufficient for most medium-load applications, hot melt or seamless belts remain more reliable for high-speed, high-torque or precision positioning drives.
2.Is pin easy to loose or come off?
As long as the tooth profile is accurate, the pin selection is proper and installation is correct, the chance of the pin falling off is very low. The stainless steel pins used by Puteken offer excellent vibration resistance and wear resistance, which is suitable for long-term operation. For high-vibration situations, latch-type pin is also optional.
3.Can the pin be reused?
In theory, yes—but it is not recommended to use pin repeatedly. After a long time operation, the pin may undergo slight deformation, which affects the tightness and safety of future connections. For safety and performance reasons, it is recommended to replace the new pin every time the belt is replaced.
