NSK Bearings through the "MOTION & CONTROL" (operation and control) technology, in order to build a comfortable and safe community dedication. While safeguarding the global environment, we should strengthen our solidarity and cooperation among nations, people and people through undertakings in the world.
Japan's Seiko Co., Ltd. (NSKLTD) was established in 1916, Japan is the country's first design and production of bearings manufacturers. For decades, NSK has developed countless new bearings to meet the needs of users all over the world, and has made great contributions to industrial development and technological progress. At the same time NSK relies on its technical advantages in precision machining to continuously develop high, refined and advanced products such as auto parts and precision mechanical components and actively carry out diversified operations in the field of electronic applications.
Gradually establish and perfect the trinity business system with production as the core, technology as guidance and marketing information as an aid. NSK will speed up the localization of this system so as to provide more direct and complete services for the vast number of users in China. China's industrial modernization make its due contribution.
NSK cylindrical roller bearings, roller bearings are cylindrical roller to the heart. Cylindrical roller and raceway for the linear contact bearings. Load capacity, mainly to bear the radial load. Rolling body and ferrule rib friction , suitable for high-speed rotation . According to the ring without ribs, can be divided into NU, NJ, NUP, N, NF and other single-row bearings, and NNU, NN and other double row bearings.
1. Rollers and raceways for line contact or repair line contact, radial load capacity, suitable for heavy loads and impact loads.
2. Friction coefficient is small, suitable for high speed, speed limit close to deep groove ball bearings .
3. N-type and NU-type can be axially moved to adapt to changes in the relative position of the shaft and the housing due to thermal expansion or installation errors, can be used for free-end support.
4. Shaft or seat hole machining requirements are higher, the bearing outer ring axis relative deflection to be strictly controlled, so as to avoid contact stress concentration.
5. Inner ring or outer ring detachable, easy to install and disassemble.
Cylindrical roller contact with the raceway, radial load capacity. Both for heavy loads and shock loads, but also for high-speed rotation.
Cylindrical roller bearing raceway and rolling body geometry. After the improved design, the new structure design with higher carrying capacity, ribs and roller end faces not only improves the axial bearing capacity of the bearing, but also improves the lubrication conditions in the contact area between the roller end face and the ribbing edge, Bearing performance.