Zhejiang Waxing Electromechanical Co., Ltd is one of the most professional manufacturers and suppliers of nk 35/20 needle roller bearing 35x45x20 mm in China. Welcome to buy high quality customized bearings made in China here from our factory. For price consultation, contact us.
Products Description
No.:NK 35/20
Size:35x45x20mm
Weight:0.07kg
Type: Needle Roller Bearing
Quality:High Precision Quality
Application:Household appliances, power tools, small motor, medical equipment, office equipment, sports equipment, electronic equipment, etc.
Mixing machines, road machinery, manual sandblasting machines, steel wire drawing machines, coating machines, cranes, treatment equipment, tower cranes, electrostatic spraying machines, forklifts, electrophoresis tanks, gravure printing machines, open chillers, plastic printing Equipment, ironing machines, spray cooling towers, color printing machines, dehydration equipment, water-cooled refrigerators, thermal transfer equipment, and other fields.
One type of needle roller classification, NK is without an inner ring, NKI is with an inner ring, different brands have different names
1. Needle bearings and ball bearings - what they have in common
Take a look at Needle Roller Bearings vs Ball Bearings and what they have in common.
1. Rolling bearings are composed of orbital rings (inner and outer rings), rolling elements (balls) and cages.
That is, a number of rolling bodies are set between the two opposite orbital rings, and a cage is used to prevent them from contacting each other, and a certain interval is maintained for rolling motion.
The geometry of the rolling elements and the raceway surfaces of the inner and outer rings is point (ball) contact or line (roller) contact. In theory, the rolling elements roll and revolve on the inner and outer rings.
The main feature of bearings is to help reduce friction. Bearings reduce friction by causing two surfaces to roll against each other, thereby reducing the amount of friction created. They consist of smooth metal balls or rollers that roll on smooth inner and outer metal surfaces. The wheels or balls are loaded, causing the device to spin.
The contact surface (point) of the rolling element and the raceway bears the load on the bearing with its raceway surface. Other components The cage does not directly bear the bearing load. In addition to maintaining the correct position of the rolling elements at equal intervals, it also prevents the rolling elements from falling off when the bearing is installed.
Bearing loads include radial loads and thrust loads. Depending on the position of the bearing in the mechanism, it can carry all radial or thrust loads or a combination of both.
According to the shape of rolling elements, rolling bearings are mainly divided into two categories: ball bearings and roller bearings. Compared with ball bearings and roller bearings of the same main size, ball bearings have lower frictional resistance and shaft runout during rotation, and are suitable for applications with high speed, high precision, low torque and low vibration. Due to the many forms and types of rolling bearings, each has its own inherent characteristics.
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