Each roller sprocket has strong teeth that latch onto the chain. Size - 10 Teeth 5mm (0.2) thickness, 12mm (0.47) Bore Diameter, 9.525mm (3/8) Pitch, Keyway: 4mm (0.16), Hub Height: 15mm (0.59), Tooth Outer Diameter: 34mm (1.34). HARFINGTON DIN/ISO 06B Roller Chain Sprocket 12T Pitch 3/8 15mm Bore A3 Carbon Steel Motor Drive Gear: : Industrial & Scientific1. Sprockets are durable gears that are used in combination with roller chains to power all types of machinery. As the sprocket rotates, the teeth grab onto the chain and move other parts that interlock with the chain. 2. The speed of the sprocket should... As the sprocket rotates, the teeth grab onto the chain and move other parts that interlock with the chain. 2. The speed of the sprocket should not exceed that allowed by a drive sprocket of the same size. Feature - The chain Sprocket is usually mounted in a fixed position on a fixed shaft. 12v Dc Motor High Torque Makermotor Gear Motor 12v DC Low Speed 100RPM Gearmotor Roller Chain Sprocket EB 12v Dc Gear Motor Sprocket Wrench HARFINGTON DIN/ Sprocket 12T Pitch 3/8" 10mm Bore Iso 06b Roller Chain Round hole with 2pcs Set Screws at 90 degrees. Type: Truck Bed Roll Bar. 1x Truck Bed Roll Bar. Perfect for All Sizes Pickup Trucks (Full Size, Mid-Size & Compact). However, it’s no longer a risk if you’ve got this truck roll bar. protects your car's It is suggested that the sprocket has at least three teeth meshed with the chain. 3. Made of A3 steel (Q235), the teeth are high-frequency quenched, with high hardness and wear resistance. 4. Used in hardware, milling machine, machinery and other transmission occasions. 5. Note: The measurement allowed tolerance is+/-1-3cm.