Pinion Assembly for Cooler [Fertilizer Application] Finish Weight : 680 kg Pinion Material: 42CrMo4 (Heat Treated to 260-290 BHN),Module: 25, No. of teeth: 19 Shaft Material: 30CrNiMo8 (Heat Treated to 248-325 BHN), Finish machined & Ground all over. Pinion & Shaft Shrunk Fitted with Key