Pulley is the key to open and close the Ji'nan guardrail is not smooth, the use of rolling bearing nylon wheel.
滑轮是济南护栏启闭是不是顺利的关键所在，应运用滚动轴承尼龙轮。
2
For it is a simultaneous increase in China's auto industry, the company has become an automobile clutch tensioner pulley bearings and bearing the most professional suppliers.
为了是中国汽车产业同步增长，公司已成为汽车离合器轴承和涨紧轮轴承最专业的供应商。
3
It is found that the damping properties of the work-spindle system are largely affected by the type of main bearing and the mounting method of the pulley.