42 Tooth 5M Timing Pulley - Aluminum Alloy Synchronous Pulley With Keyway Bore 8-25mm

About This Product

DIYers and machinery folks, this 42-tooth timing pulley is built for precision power transmission! The 5M pitch (5mm between teeth) works perfectly with standard HTD5M timing belts for accurate, no-slip operation. Made from aluminum alloy that's lightweight yet durable, with a 65.70mm outside diameter that's ideal for various mechanical applications. The keyway bore options from 8mm to 25mm mean you can find the perfect fit for your shaft size. The double flange design keeps the belt properly aligned during operation, preventing derailment issues. Perfect for CNC machines, 3D printers, milling equipment, or any project requiring precise rotational control. The transmission is incredibly accurate with no slipping, making it ideal for applications where timing matters. The aluminum construction dissipates heat well and won't rust like steel alternatives. Installation is straightforward if you're familiar with mechanical assemblies - just slide onto your shaft with the key aligned and secure with set screws. Much more reliable than friction-based drives that can slip under load. Whether you're building custom machinery, repairing industrial equipment, or working on hobby projects, having quality timing pulleys like this ensures smooth, predictable performance. The machining quality is precise with clean teeth that engage belts perfectly without excessive wear. Don't compromise on power transmission accuracy - this timing pulley delivers professional results for any project requiring synchronized movement.