Single-row Cylindrical Roller Bearing

NU Type, N Type:
NUtype bearing has double ribs on the outer race, and the outer race, the roller and the holder can separate from the inner race. Ntype bearing has double ribs on the inner race, the inner race, the roller and the holder can separate from the outer race.
NUtype and Ntype bearings allow shaft move relative to housing in a definite range. They can suit relative position change of shaft and housing caused by heat expansion or mounting error, and they are very suitable for free end bearings. They can not limit axial displacement of shaft and housing, and can only be subject to radial load.

NJ Type and NF Type:
NJtype bearing has an outer race with double ribs and an inner race with a single rib.
NFtype bearing has an inner race with double ribs and an outer race with a single rib.
NJtype and NFtype bearings can be subject to definite unidirectional axial load.

NUP Type, NH Type:
NUPtype bearing has an outer race with double ribs and an inner race with a single rib and a loose rib. NH type bearing has an outer race with double ribs and an inner race with a single rib and a separate thrust collar. Inner race and outer race can be respectively mounted (with complete rollers and holder), and axial displacement of shaft and housing in two directions is limited in the axial windage bound of the bearing. Except being subject to radial load, the bearings can also be subject to little bidirectional axial load. So they are suitable for fixed end bearing.

NCL…V Type:
The cylindrical roller bearing has an outer race with no rib but double locking collars, and the bearing has no holder.
This type of bearing has no holder, but is provided with many rollers. Compared with other cylindrical roller bearings, the bearing can be subject to larger radial load, but its limit speed is lower. The inner race and the outer race of this type of bearing can not be separated, and they can not be separately mounted, either. But the axial displacement of shaft and housing in two directions can be limited in the axial windage bound.

NB Type:
Cylindrical roller bearing without ribs
There is no rib on the outer race and the inner race. The outer race is provided with oilhole. The inner race, the outer race and the complete rollers can be separately mounted, but axial displacement of bearing and housing can not be limited. Besides, the bearing can not be subject to axial load.

NJ…V Type:
The cylindrical bearing has an inner race with one single rib, but no holder.
This type of bearing has no holder, but it is provide with many rollers. Compared with other cylindrical roller bearings of the same external dimensions, the bearing is provided with larger radial load capacity, but the limit speed is lower. It does not limit axial displacement of shaft or housing, and can not be subject to axial load, either.

NCF…V Type:
A centripetal short cylindrical roller bearing has an outer race with one single rib, but no holder.
This type of bearing has no holder, but it is provided with many rollers. Compared with other cylindrical roller bearings of thee same external dimensions, the bearing can be subject to larger radial load, but its limit speed is lower.
This type of bearing can limit the axial displacement of shaft and housing in two directions in the axial windage bound.

…N Type (bearing with limit slot):
Some of the single-row cylindrical roller bearing is provided with a limit slot on the outer race, and its postposition code is indicated by "N". The bearing is axial located in bearing block by limit slot. Bearing axial tightening in housing bore is simplified. The housing bore can be made into pylome to reduce axial dimension of components.