Idler Sprocket 13 Tooth One Half Inch Bore For Roller Chain 40 41 420 Fits Chains 40 41 420 Beefy Silver Or Black Finish Heavy Duty Drive Component For Machinery Farm And Workshop

13-Tooth Idler Sprocket, 1/2in Bore for #40/41/420 ✔️ 13 teeth, 1/2in bore, roller dia 0.306in, fits 40/41/420

These 13-tooth idler sprockets are heavy-duty drive components for roller chain systems using #40/41/420 chains. Used to guide and tension chains in machinery, farm equipment, and workshop conveyors, they help define smooth motion and reduce wear. Offered in silver or black finish for durability and corrosion resistance. Pack size: 1.

Dimension	Value	Metric
Teeth	13
Bore	1/2 in	12.7 mm
Pitch	1/2 in	12.7 mm
Roller diameter	0.306 in	7.78 mm
Roller width	0.25 in	6.35 mm
Pin diameter	0.141 in	3.58 mm

✅ Teeth: 13
✅ Bore: 1/2 in (12.7 mm)
✅ Chain compatibility: #40/41/420
✅ Roller diameter: 0.306 in (7.78 mm)
✅ Roller width: 0.25 in (6.35 mm)
✅ Pin diameter: 0.141 in (3.58 mm)
✅ Finish: silver or black
✅ Pack size: 1

💡 What is a 1/2 inch bore idler sprocket with 13 teeth used for in roller chain drives?

This handy piece keeps chains aligned and helps ensure smooth, durable operation.

• Keeps chain alignment and reduces wear on drive systems.
• Matches #40/41/420 roller chains for proper pitch and engagement.
• Mounts on standard shafts with a 1/2 in bore for easy replacement.
• Available in silver or black finish for durability and corrosion resistance.