乱亲女h秽乱长久久久-日韩一区二区三区无码影院-亚洲av无码乱码精品国产-国产九九99久久99大香伊-国产裸体xxxx视频在线播放

Cylindrical Roller Bearings
Product Name: Cylindrical Roller Bearing
Product No:NU200
Product Description: Main uses: Large and medium-sized motors, rolling stock, machine tool spindles, internal combustion engines, generators, gas turbines, gearboxes, rolling mills, vibrating screens, and lifting and transportation machinery.
details:
 

Cylindrical roller bearing
The rolling element is a radial rolling bearing of a cylindrical roller.
Cylindrical Roller Bearings
Cylindrical rollers and raceways are line contact bearings. Load capacity, mainly bear radial load. The rolling element has little friction with the ferrule rib and is suitable for high speed rotation. According to the ferrule with or without ribs, it can be divided into single row bearings such as NU, NJ, NUP, N, NF, and double row bearings such as NNU and NN. The bearing is a structure in which the inner ring and the outer ring are separable. Cylindrical roller bearings with no ribs on the inner or outer ring, the inner and outer rings can move relative to the axial direction, so they can be used as free end bearings. A cylindrical roller bearing with a single rib on one side of the inner and outer rings and a single rib on the other side can withstand a certain degree of axial load in one direction. Steel stamping cages or copper alloy cages are generally used. However, some use polyamide shaped cages.
Cylindrical roller bearing features:
1. The roller and the raceway are in contact with the wire or repaired, and have a large radial load capacity, which is suitable for bearing heavy loads and impact loads.
2. The friction coefficient is small, suitable for high speed, and the limit speed is close to the deep groove ball bearing.
3. N-type and NU-type can move axially, can adapt to the change of the relative position of the shaft and the shell caused by thermal expansion or installation error, and can be used as free end support.
4. The machining requirements of the shaft or the seat hole are high. After the bearing is installed, the relative deflection of the outer ring axis should be strictly controlled to avoid contact stress concentration.
5. The inner or outer ring can be separated for easy installation and removal.
The main purpose:
Large and medium-sized motors, rolling stock, machine tool spindles, internal combustion engines, generators, gas turbines, gearboxes, rolling mills, vibrating screens, and lifting and transporting machinery.
主站蜘蛛池模板: 亚洲综合另类小说色区色噜噜| 中国亚洲女人69内射少妇| 狼狼综合久久久久综合网| 五月综合缴情婷婷六月| 国产末成年女av片| 人妻无码一区二区不卡无码av| 人妻夜夜爽天天爽一区| 久久精品人人爽人人爽| 欧美性色欧美a在线图片| 国产av天堂亚洲国产av刚刚碰一| 亚州日本乱码一区二区三区| 久久久久国产精品嫩草影院| 国自产拍亚洲免费视频| 日本不卡高字幕在线2019| 亚洲av无码一区二区三区网站 | 亚洲欧美日本韩国| 久久夜色精品国产欧美乱| 久久这里精品国产99丫e6| 亚洲人ⅴsaⅴ国产精品| 亚洲精品无码永久在线观看| 日韩高清在线观看永久| 被邻居老头揉捏我奶头| 正在播放老肥熟妇露脸| 国产成人午夜高潮毛片| 无码任你躁久久久久久| 国产香港明星裸体xxxx视频| 亚洲av少妇熟女猛男| 久久久久亚洲av成人无码电影| 国产成人无码专区| √天堂中文官网8在线| 日本va欧美va精品发布| 国内偷窥一区二区三区视频| 国产丰满麻豆vⅰde0sex| 国产又爽又黄又爽又刺激| 亚洲精品乱码久久久久久久久久久久| 日本熟妇色xxxxx日本免费看| 亚洲av无码码潮喷在线观看| 麻豆tv入口在线看| 中国丰满少妇人妻xxx性董鑫洁| 久久99国内精品自在现线 | 少妇激情a∨一区二区三区|