Bearing inner ring and outer ring are designed with a ball body running R circular groove running slide. Roller roller bearing mandrel on the bearing inner ring equivalent, the equivalent of the roller bearing outer ring iron shell. Roller bearings were used on single or two pairs of bearings installed in the front and back end. On the mandrel has two circular groove Kuang, Kuang and has a circular groove on the front inner wall of steel only. Front row ball bearing mounted on the inner wall of the shell Kuang circular groove, with the corresponding R circular grooves on the mandrel into the arc in contact with inlay run, while the rear ball mounted on a mandrel R round steel tank with an inner wall formed not line rules contact operation. Cots on this structure roller bearings, said single slide, namely a complete front-end bearing slide.
Its shortcomings and problems: First, during operation, the rear inner wall of the ball with the line contact steel, runs irregular, small contact surface, can easily cause wear and steel ball within the hole wall wear, the radial clearance Big. Practice has proved that both ends of a rubber roller clearance inconsistent, Cots may cause operation is not flexible. Second, due to the limited amount of single-slide oil, blemishes and red rust, causing the rotation is not working, the deterioration of the stem into the slub defect. The third is sealed condition limited, grease melt leakage along the shaft hole formed oil yarn. Fourth, front-row ball bearing stress caused by a rubber roller radial run ends difference, affecting the production of precision rubber roller, causing the roller bearings and rubber roller life is short and ingot big difference.
In the domestic production of rubber roller bearings, Ningbo Zhenhai cots bearing plant developed SL6819-SG type spinning roller bearing steel on the inner wall of the double slide back also opened a R circular groove slide, so that the rear ball in R slide groove running round the front and rear are in the R circular groove ball glide to form a double arc contacts, and enhance the rubber roller bearing in drafting a running force area, making it even by force, reducing the running runout and shaking, raise the smooth operation and enhanced dust-proof and anti-leakage, while allowing the core shell oil increase, decrease ball core shell wear, enhance the overall Cots flexible operation, stable performance, extended on the roller bearing life.
Pearl Wuxi Textile Accessories Co. spiral electrochemical polishing technology for the roller bearing circle deep processing within the housing, improve the inner circle and slide roughness and precision, thus improving the operation of the roller bearing of the core-shell sensitivity and stability, reduce operating noise and reduce mechanical wave generated due to poor bearings, will help to improve the level and stability of the yarn evenness.
Jiangsu Jianhu Long Bearing Co., Ltd. will be changed on the roller bearing housing grooves zigzag, facilitates the bush when pressed aluminum sleeve hose, reducing damage to the inner wall aluminum liner to facilitate pressure sleeve, made of the rate increase, which Cots enhanced running stability.
