Built Like A Tank 18 Tooth Idler Sprocket With 1/2 Inch Bore And 203KRR5 Bearing For Size 35 Roller Chain Crafted From Heavy Carbon Steel With Black Oxide Finish Ready To Roll Smooth

Single Unit 18 Tooth Idler Sprocket For Mechanical Chains
✔️ 3/8 pitch 1/2 bore carbon steel design with sealed bearings

This 18 tooth idler sprocket keeps your drive train tracking straight and tension consistent across mechanical power transmission setups. The built in sealed ball bearing supports smooth rotation while reducing friction on standard 35 roller chains.

✅ Coated with black oxide for long lasting durability
✅ Integrated 203KRR5 bearing for smoother spin rate
✅ Standard 3/8 inch pitch matches size 35 roller chain
✅ Center 1/2 inch round hole handles high torque loads

💡 What purpose does an idler sprocket serve in a chain drive system?
To keep things handy and stop your power line from jumping off track, you need a solid guide that holds tension steady. Picking a tight fitting unit cuts downtime and makes maintenance way simpler. Here is why buyers grab these:
1. Guides slack away from main drive gears
2. Absorbs vibration from motor shafts daily
3. Keeps speed consistent on production fixtures
4. Saves money by extending overall chain lifespan