Teeth part is MC602ST, with boss part made of S45C fused, with slotted keyway, and tapping etc. for improved safety. High performance plastic gear, so non-lubricated with high-torque.
Atenție
Please note that there is an error in the manufacturer's catalog. 10 mm hole diameter and 12 mm keyway are incorrect. Incorrect: 5×2.3 → Correct: 4×1.8