我厂圆锥外圈毛坯在加工中,因外圈锥度大,一度给车加工带来困难.后来在辗压轮的槽里设一角度α(如图 1)后,辗扩的毛坯锥度普遍被控制在0.4mm以下.如α角确定得合适时,锥度只有0.1mm左右.α=tg(?)D_(max)-D_(min)/2H.D_(max)、D_(min)和H分别为辗扩成型毛坯的最大直径、最小直径和高度(如图2所示).对于特宽系列的轴承,计算出的α角应再加1度, I plant outside the rough cone in the processing, because the outer ring taper, once to bring difficulties to the car. Later in the groove of the rolling wheel to set an angle α (Figure 1), the rolling of the rough taper is generally The control is below 0.4mm, and the taper is only about 0.1mm if the α angle is determined to be suitable. Α = tg (?) D_max - D_min / 2H.D_max, D_min and H respectively Is the maximum diameter, the minimum diameter and the height of the blank, as shown in Figure 2. For the extra wide series of bearings, the calculated angle α should add 1 degree,