Half Inch Bore 16 Tooth Tensioner Idler Sprocket Compatible With 40 41 420 Chain Sealed Bearings Fits Fixed Shaft Durable Aluminum Construction Easy Install Smooth Operation For Industrial Chains

Half-Inch Bore 16-Tooth Tensioner Idler for 40/41/420 Chains
✔️ 1/2 inch bore, 16 teeth, sealed bearings, aluminum body, pack: 1 unit

This idler sprocket uses sealed bearings to provide smooth rotation and low maintenance, ideal for industrial chain drives. It mounts at a fixed shaft position to guide tension and alignment in conveyors, packaging lines, or any chain-driven machinery.

✅ 1/2 inch bore
✅ 16 teeth
✅ Sealed bearings for maintenance-free operation
✅ Aluminum construction for strength and light weight
✅ Fixed-shaft mounting simplifies installation

💡 What is a tensioner idler used for in chain drives?

It's handy for keeping chain tension steady in drive systems.

- chain tensioning improves alignment and reduces slack in conveyors and power transmission lines - sealed bearings reduce maintenance needs and noise over time - compatible with 40/41/420 chain sizes for easy replacement - fixed-shaft mounting makes installation quick and reliable