The basic design self-aligning ball bearing is available with a cylindricalbore or, in certain size ranges, with a tapered bore (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）。
2
Cylindricalbore bearing is usually installed with heat, reduce the use of interference fit bearing clearance, or achieving the purpose of pretension.
圆柱孔轴承通常采用热装，利用过盈配合减小轴承游隙，或者达到预紧的目的。
3
When it comes to the monospaced chamfer at intersection line of orthogonal cylinder and cylindricalbore, however, no mature manufacturing method has been found yet.