The spring type uses a coil spring to hold the disc closed and is well suited to low-flow or low-pressure lines such as drip irrigation and small domestic supply pipes
🔥Consistent 2:1 Shrink Ratio — Shrinks uniformly from 45mm down to approximately 22–23mm (≈7/8")
glue-lined heat shrink tubing
Avoid over-tightening — hand-tight plus approximately one quarter-turn with a strap wrench is typically sufficient
📏Three Diameter Options — Choose from 25mm (≈1")
8YU HTD Timing Belt — 8mm Pitch, 15mm & 20mm Width, 520–2000mm Closed Loop Size::8YU 125Teeth 1000mm The spring type uses a8YU HTD Timing Belt Reliable 8mm Pitch Drive for CNC, Robotics & Industrial Systems When your CNC router, conveyor, or automation rig demands a closed loop drive belt that won't skip teeth under load, finding the right 8YU HTD timing belt in the exact length you need can be a frustrating search. Whether you're a maker building a large format 3D printer, a shop tech replacing a worn drive belt, or an engineer speccing a new motion system, having the