For tapered roller large end and sliding friction between the inner wall, the speed limit is often lower than the same size cylindrical roller bearings.
因圆锥滚子大端与内圈挡边之间滑动摩擦，其极限转速往往低于同尺寸的圆柱滚子轴承。
W12 series rolling machine with four rollers adopt upper roller rotary mechanical drive, lower roller and side roller fluctuation hydraulic drive, electric concentrated control operation system.
W12系列四辊卷板机采用上辊旋转机械传动，下辊和侧辊升降液压传动，电气集中控制操作系统。
The results illustrate that the values of stress at both inside and outside surfaces of prestressed pull-straightening roller are much lower.
结果表明预应力辊内、外表面处的应力幅值有了较大的降低。
The lower pairs were substituted for the higher pairs in order to study the specific properties of the disc cam with the circular profile and the follower attached to the roller.
并以最大无量纲速度和加速度为标准，将凸轮机构从动件常用运动规律特性与该圆弧凸轮的从动件运动规律特性加以比较，指出其适用场合为中、高速轻载。
Through analysis and research on the noise and vibration in the test ground of vibratory road roller, measures have been taken to lower the noise and vibration level and good effect has been resulted.
对压路机试车场噪声与振动进行分析研究，采取几项措施的综合治理，试车场的减振降噪取得较好的效果。
Also, the use of boron and chromium, instead of nickel and molybdenum, can lower the cost of roller.
以硼、铬取代镍、钼合金还可使磨辊的生产成本有所降低。
The utility model can realize the gradual straightening operation and the straightening strain is very small. The upper roller and the lower roller can automatically conduct the centering operation.
本实用新型能实现渐进矫直，矫直应变极小，并且上、下辊能自行对中。
The unit includes paper feeding, slitting, pre-press and creasing, with lower paper roller, to meet the requirements of diff.
该机以送纸、分切、预压、压痕为序，并配有下带纸轮，可适应各种纸箱分切和压痕的不同要求。
The surface portions of the upper middle roller and the lower middle roller are symmetrically fabricated to form a certain conical degree.
所述的上中间辊与下中间辊的辊面部位对称制作设有一定的锥度。
Roller type thrust bearing can give simple design structure and easy to maintain and lower requirement of it's lubrication condition, but give shorter using life comparatively.
球面辊子推力轴承结构简单，对环境要求相对比较低，但寿命较短。
W11H series all-mechanism camber line lower adjusting 3-roller coiling machine is a new model produced by employing design and manufacturing techniques of Swedish ROUND.
系列全机械弧线下调式三辊卷板机，是采用瑞典ROUND公司设计制造技术生产的一种新型卷板机。
Friction installations of up and down roller will help reduce resistance and lower power consumption.
上下压轮装置采用滚动摩擦，有利于减少工作阻力，降低功率消耗。
The upper end and the lower end of a lifting screw are in a double-self-aligning hanging structure with a self-aligning roller step bearing so that the stress state of the lifting screw is improved.
提升螺杆上、下端采用调心滚柱止推轴承双调心吊挂结构改善提升螺杆受力状态。
Supported by a long table spindle from the upper and lower ends of a double row of the short-lived circular roller bearings to ensure that height in the high-precision machining can under steady work.
工作台主轴用长支承距上下两端各一套双列短圆住滚子轴承，保证在高处加工亦能在高精度下平稳的工作。
Supported by a long table spindle from the upper and lower ends of a double row of the short-lived circular roller bearings to ensure that height in the high-precision machining can under steady work.
工作台主轴用长支承距上下两端各一套双列短圆住滚子轴承，保证在高处加工亦能在高精度下平稳的工作。
应用推荐