Chapter 18 Driving Axle 同©大学 TONGII UNIVERSTT Direction of spiral and axis offset of hypoid gear >Judgment of direction of spiral:to look from the small end to the big one,if the tooth is left-hand it's called left-hand gear, otherwise it's right-hand gear 小齿轮左旋，大齿轮右旋，下偏移 >Judgment of up or low offset:put the pinion on the right of the gear,if the axis of the pinion is below that of the gear,it is called low 小齿轮右旋，大齿轮左旋，上偏移 双曲面锥齿轮的偏移与旋转方向 offset;otherwise,it is up offset.Chapter 18 Driving Axle Direction of spiral and axis offset of hypoid gear Judgment of direction of spiral：to look from the small end to the big one，if the tooth is left-hand it’s called left-hand gear, otherwise it’s right-hand gear Judgment of up or low offset：put the pinion on the right of the gear，if the axis of the pinion is below that of the gear，it is called low offset; otherwise, it is up offset