For needle roller bearings without inner ring, a suitable internal clearance is achieved by selecting the appropriate tolerance for the raceway diameter.
对于无内圈滚针轴承，通过为滚道直径选择合适的公差，可得到合适的内部游隙。
2
This clearance space makes it possible to reduce the distance between the sinker (2) and the latch needle (3) or to reduce the wear between these two elements.
此间隙空间使得减小沉降片（2）和舌针（3）之间的距离或减小这 两个元件间的磨损成为可能。
3
The second segment includes an opening configured for clearance of a medical needle of a medical needle device during attachment of the extensible shield to the medical needle device.