It is very difficult to grind taperedbore in a large diameter gear without dedicated equipment.
由于没有专用设备，大直径齿轮锥孔磨削非常困难。
2
The basic design self-aligning ball bearing is available with a cylindrical bore or, in certain size ranges, with a taperedbore (taper 1:12).
自调心球轴承的基本设计带有一圆柱孔，或者在某些尺寸范围内带一圆锥孔（圆锥1：12）。
3
The latest extension to the sealed spherical roller bearing range includes 11 new variants, with both cylindrical and taperedbore versions available, depending on specific application requirements.