Подшипник с высокой термостойкостью NJ304 NJ312 цилиндрические роликовые подшипники 300-500

Cylindrical roller and raceway for linear contact bearings. The load capacity is large, mainly bearing radial load. Rolling body and the sleeve edge friction is small, suitable for high-speed rotation. According to the sleeve has no edge, can be divided into NU, NJ, NUP, N, NF and other single row cylindrical roller bearings, and NNU, NN and other double row cylindrical roller bearings. The bearing is the inner ring, outer ring can be separated structure.
Inner circle or outer circle without blocking edge cylindrical roller bearing, its inner circle and outer circle can make relative movement to the axial direction, so it can be used as a free end bearing. In the inner and outer ring of a side of the double retaining edge, the other side of the collar has a single retaining edge of the cylindrical roller bearings, can bear a certain degree of a directional axial load. General use of steel plate stamping cage, or copper alloy turned solid cage. However, there is also a part of the use of polyamide forming cage.
Features
1. roller and raceway for the line contact or repair under the line contact, radial bearing capacity, suitable for bearing heavy load and shock load.
2. small coefficient of friction, suitable for high speed, the limit speed is close to the deep groove ball bearings. 3.
3. N type and NU type can be axially moved, can adapt to the thermal expansion or installation error caused by the shaft and shell relative position changes, can be used as a free end support.
4. the shaft or seat hole processing requirements are high, bearing installation after the outer ring axis relative deflection to strictly control, so as not to cause contact stress concentration.
5. Inner ring or outer ring can be separated, easy to install and disassemble.