Roller Chain Sprocket B Type For Three Eighths Inch Pitch, 20 Teeth, 30mm Bore, A3 Steel With Hardened Teeth, Tough As Nails, ISO DIN 06B 1, 8mm Keyway, Single Strand, With Two Set Screws At Ninety Degrees

A3 Steel B-Type Roller Chain Sprocket, 20 Teeth, 30mm Bore
✔️ Single-piece sprocket, 8mm keyway, two 90° set screws, secure mounting

This B-type chain sprocket is designed for 3/8 inch pitch with 20 teeth, built from A3 steel with hardened teeth for wear resistance. It is compatible with the ISO DIN 06B 1 standard and mounts on a fixed shaft via an 8mm keyway and two set screws at 90 degrees, making it a solid choice for milling machines, drill presses, and similar machine transmissions.

✅ 20 teeth, 3/8 in pitch (9.25 mm), 30 mm (1.18 in) bore
✅ 8 mm keyway, 2 set screws at 90 degrees
✅ A3 steel with hardened teeth for wear resistance
✅ Single-strand sprocket for fixed-drive applications

💡 What is a chain sprocket used for in common drive systems?

Handy for translating shaft rotation into chain motion in power transmission setups.

• 3/8 in pitch compatible with standard roller chains
• 20 teeth provide a balanced torque and speed
• 8 mm keyway and two 90° set screws secure mounting
• Hardened A3 steel teeth offer long wear life in industrial use