滾針軸承
 
  FYB—滾針軸承是由機加工外圈、內圈與保持架和滾針組件組成的軸承單元,剖面高度小,負荷容量與剛性大,結構緊湊體積小,配置內圈的結構可得到較高的旋轉精度。
  FYB—滾針軸承產品結構多樣、適應性廣、易于安裝。廣泛用于汽車、機床、冶金制造、紡織和印刷等各種不同類型機械設備上,使用該類軸承可實現機械設計的小型化、輕量化。

△結構形式

  該類軸承有窄系列和寬系列、有內圈和無內圈、有保持架和無保持架滿裝、有擋邊和無擋邊、有密封和無密封等多重結構形式供用戶選擇,也可根據用戶特殊結構要求設計。

△產品精度
  尺寸公差和幾何精度按GB/T5801
  滾針直徑相互差在2μm,精度等級為G2級(國標GB/T309)。
  無內圈軸承裝配前內切圓直徑符合公差等級F6。
  軸承徑向游隙符合GB/T4604的0組規定值。
  特殊精度等級按GB/T307.1
  對于軸承游隙、內切圓、精度等級特殊要求的詳細情況應與本公司聯系。

△材料
  滾針材料為GCr15軸承鋼,淬硬HRC60—65。
  內外圈材料為GCr15軸承鋼,淬硬HRC61—65。
  保持架材料為優質低碳鋼或增強尼龍。

△特殊說明
  軸承游隙、內切圓應根據使用場合進行適當調整。
  軸承安裝應使用機械工具壓裝或熱裝。
  受塑料保持架(后綴TN)和密封件材料限制,運轉溫度-30℃— +100℃。
  軸承一般配置設計見滾動軸承應用技術中相關推薦。

△標準
  GB/T5801—1994滾動軸承 輕中系列滾針軸承 外形尺寸和公差(GB-9)
  JB/T3588—1994滾動軸承 滿裝滾針軸承 外形尺寸和公差(JB-5)
Needle Roller Bearing

FYB---needle roller bearing is a bearing unit composed of machined outer ring & inner ring, cage and needle roller assembly featuring small section height, big load capacity & rigidity, compact structure and small size, high rotating accuracy with the structure of disposed inner ring.

FYB---needle roller bearing is characterized by multiple structures, broad adaptability and easy installation.


It is widely used in auto, lathe, metallurgical, textile, printing industry & other various machinery equipment. With this kind of bearing, machine design can realize the goal of small-scale & lightweight.


Types of Designs:
This kind of bearing has multiple structural styles for the choice of customers, such as narrow & broad series, with or without inner races, cages, ribs or sealings. It can be designed according to the special structural requirements of customers as well.

Product Precision Accuracy:
Dimensional tolerance and geometrical accuracy is based on GB/T5801.
Mutual difference of needle roller diameter is 2μm, and the precision grade is G2 (ISO GB309).
The diameter of inscribed circle conforms to tolerance grade F6 before the fitting of outer ring with cage and roller assembly.

Bearing radial running clearance conforms to the value defined by 0 group of GB/T4604.
Special precision grade is based on GB/T307.1
For fuller information on the special requirements of bearing running clearance, inscribed circle and precision 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, quench-hardening HRC61---65.
Material for cages is quality low-carbon steel or reinforced nylon.

Special Directions:
Bearing running clearance and inner-cutting roundness should be regulated according to different conditions.
Machine tools should be used for press-in fitting or thermal fitting of the bearing
Limited by plastic cages (suffixed with TN) and sealing-element material, operating temperature is -300C---+1000C.
For general-disposition design of bearings, refer to the relevant recommendation in the applied technology of rolling bearings.

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