ABA Lubricating Felt Gears 润滑毛毡齿轮

Product Description

Straight tooth calculation formula: D=M ‘ Z; Da=(Z+2)’M	直齿计算公式：D=M’Z； Da=(Z+2)’M
Calculation formula for helical teeth: D=M ” Z/COS B; Da=(Z+2)’M	斜齿计算公式：D=M ” Z/COS B; Da=(Z+2)’M
(COS19 ” =0.9455185; please confirm the helix angle when ordering B Value!)	(COS19″=0.9455185；订购B值时请确认螺旋角！)