Type cylindrical roller bearings

Cylindrical roller bearings types include: N, NU, NJ, NF, NUP, NFP, NH (NJ + HJ), NN, NNU, NNF, FC, FCD type
1. N bearing
No outer wall, the inner ring ribs on both sides. Allows the bearing axis relative to the axial direction between the two displacement directions. NU type ribs on both sides of the bearing outer ring, inner ring without ribs. Can allow the shaft between the taper roller bearing seat in the axial displacement in both directions. Therefore, such a structure is suitable for use as a mobile end bearings.
2. N type bearings
No outer wall, the inner ring ribs on both sides. Allows the bearing axis relative to the axial direction between the two displacement directions. NU type ribs on both sides of the bearing outer ring, inner ring without ribs. Can allow the shaft between the bearing seat in the axial displacement in both directions. Therefore, such a structure is suitable for use as a mobile end bearings.
3. NJ type bearings
Outer sides of wall, inner side with ribs. Can withstand a certain amount of axial load. NF type outer side has wall, inner sides of ribs. Also can withstand a certain amount of axial load. Therefore, such a structure is suitable for positioning the axial direction as a single bearing.
4. NUP bearings
Outer sides of ribs, the inner side of the band (fixed) single-wall, while the other side is detachable flat ring. Can withstand a certain amount of axial load.
7. NN bearings
The outer wall, the inner wall on both sides of the middle of the wall. Allows the relative Bearing test machine between the shaft in the axial direction of the displacement produced two, NNU type bearing outer ring ribs on both sides of the middle of the wall, inner wall. Can allow the shaft between the bearing seat in the axial direction of the displacement generating two. Therefore, such structure is suitable for swimming-end bearings. The type of bearing cages are mostly used car solid cage