熟妇人妻无码中文字幕-熟妇人妻无码中文字幕老熟妇-熟妇人妻系列aⅴ无码专区友真希-熟妇人妻系列av无码一区二区-熟妇人妻一区二区三区四区-熟妇人妻中文av无码

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: 四虎影在线永久免费观看 | 美女被a到爽视频在线观看 美女被cao的视频免费看 | 国产成人在线免费观看 | 亚洲h在线观看 | 四虎影视精品 | 第一福利在线观看 | 国产男女爽爽爽免费视频 | 精品国免费一区二区三区 | 亚洲欧美另类在线视频 | 欧美一级视频免费 | 国产欧美一区二区三区沐欲 | 福利岛国深夜在线 | 欧美va放荡人妇大片 | 一道本免费视频 | 日本a在线 | 成人毛片免费观看视频 | 日本国产一区二区三区 | 深夜福利国产 | 国产精品中文字幕在线 | 久久图片| 性做久久久久久久久男女 | 狠狠色婷婷丁香六月 | 特级毛片网站 | 影视先锋av资源噜噜 | 婷婷开心激情 | 国产成人综合亚洲动漫在线 | 韩国精品一区二区久久 | 国产福利视频一区 | 婷婷激情四月 | 免费视频精品一区二区三区 | 狠狠色狠狠色 | 精品久久国产 | 国产精品777| 欧美猛操 | 国产精品久久一区一区 | 久久狠狠 | 色视频2| 97影院理论片在线观看 | 国产日韩亚洲欧洲一区二区三区 | 欧美大交乱xxxxxbbb | 四虎影院在线免费 |