支承滚轮轴承
 
  FYB滚轮滚针轴承是由由机加工厚壁外圈、滚针或圆柱滚子、或保持架引导或满装滚动体组、内圈或螺栓及 密封组成的轴承单元,可承受较高的径向负荷和一定的冲击负荷,结构紧凑多样、旋转精度高、品种繁多、适应 性广、易于安装。广泛用于机床、冶金机械、纺织机械、印刷机械等机械设备和加工流水线。

STO、NA22…2RS系列产品在油润滑时可用于高速运转。

NATR系列支承滚轮特别适用于重载及中速。

NATV、NUTR、KRV、NUKR系列满装滚动体产品可在低速下承受较重载荷。
 

△结构形式
  该类轴承有采用滚针或圆柱滚子承载结构;有多种密封形式用于防止污染物和 水的侵入密封方式;外圈外圆有圆柱形及圆弧形多种轮廓形状;有用螺栓轴结构便 于直接安装等多种结构型式供不同场合选择使用,也可根据用户特殊结构要求设计。

△产品精度
  尺寸公差和几何精度按GB/T6445。
  滚针直径相互差在2μm,精度等级为G2级(国标GB/T309)。
  轴承径向游隙符合GB/T4604的0组规定值。
  外圈圆弧直径公差为0~-0.05mm
  对于轴承游隙、内切圆、精度等级特殊要求的详细情况应与本腾讯分分彩一期一计划联系。

△材料

  滚针材料为GCr15轴承钢,淬硬HRC60—65。
  内外圈材料为GCr15轴承钢或渗碳钢。
  保持架材料为优质低碳钢或增强尼龙。

△特殊说明
  支承滚轮外圈表面为弧形以避免边缘应力
  受塑料保持架(后缀TN)和密封件材料限制,运转温度-30℃— +100℃。
  使用偏心套结构调整外圈位置使之于运转轨道相匹配
  轴承一般配置设计见滚动轴承应用技术中相关推荐。

△标准
  GB/T6445.1—1996滚动轴承 滚轮滚针轴承 外形尺寸(GB-11)
  GB/T6445.2—1996滚动轴承 滚轮滚针轴承 公差(GB-11)

Cam Follower Needle Roller Bearing

FYB---cam follower roller bearing is a bearing unit composed of machined thick-wall outer race, needle roller or cylindrical roller, or the rolling body guided by retainer or full-component rolling body, inner or bolt and sealing. Featuring multiple compact structure, high rotating accuracy, large varieties, broad adaptability and easy installation, it can bear high radial load and certain shock load and is widely used in lathe, metallurgical, textile and printing machinery, processing lines and etc.

STO, NA22...2RS series of products can be applied to the operation with high speed when it is being lubricated with oil.

NATR series of supporting rollers are especially suitable for heavy and medium speed.
NATV, NUTR, KRV, NUKR series of full-load rolling body products can bear heavier load with low speed.

Types of Designs:
Supporting structure of needle rollers or cylindrical rollers is adopted for this kind of bearing. There are multiple types of sealing for preventing pollutant or water intrusion, various profile forms such as cylindrical & arc for the outer circle of outer race, bolt shaft structure which is convenient for direct installation and suitable to different occasions. Special structure can be designed as well according to the requirements of customers.

Product Precision Accuracy:
Dimensional tolerance and geometrical accuracy is based on GB/T6445.
Mutual difference of needle roller diameter is 2μm, and the precision grade is G2 (ISO GB309).
Bearing radial running clearance conforms to the value defined by 0 group of GB/T4604.
Diameter tolerance of outer-race arc is 0~0.05mm.
For fuller information on the special requirements of bearing running clearance, inscribed circle and accuracy grade, please contact this company.

Materials:
Material for needle roller is GCr15 bearing steel, quench-hardening HRC60---65.
Material for inner and outer races is GCr15 bearing steel or carburizing steel.
Material for cages is quality low-carbon steel or reinforced nylon.

Special Directions:
Outer race surface of supporting roller is arc form so as to avoid rim stress.
Limited by plastic cages (suffixed with TN) and sealing-element material, operating temperature is -30℃---+100℃.

Outer race position is adjusted by eccentric sleeve structure so that it can match the motion rail.

For general-disposition design of bearings, refer to the relevant recommendation in the applied technology of rolling bearings.