the investigation directions of the high speed roller bit sealing are put forward in the future.
针对这些情况提出高速牙轮鉆头轴承密封在今后的研究方向。
the ge neral fatigue theory of rolling bearings is unable to predict the failure due to skidding and skewing of rolling elements, which often occur in high speed roller bearings.
在高速轻载的工况下,滚子轴承的打滑蹭伤及由于滚子歪斜引起的滚子端面磨损已成为滚子轴承的主要失效原因。
and it elaborates the core mechanism, developing procedure and testing results of high speed roller mill;
胶辊砻谷机提高线速和的研究历程;