NH-type cylindrical roller bearings consist of the NJ-type cylindrical roller bearings and HJ-type L-shaped thrust collars. Comparing to NUP type with short flange ring and non-locating loose flange, type NH can take the advantage of the whole inner ring width of NJ to match with axes tightly. Moreover, the mounting and dismounting for NH type bearing is more convenient.

NH type of bearings can limit axial displacement in double directions of the housing relative to the shaft. Therefore, it is suitable for using as a fixed end bearing. 

Regarding to the cages, pressed steel or machined brass cages are generally used, but sometimes molded polyamide cages are also used.

Advantages of Cylindrical Roller Bearing:

1. The roller and raceway for the line contact or offline contact, radial bearing capacity is large, apply to under heavy load and impact load.

2. The friction coefficient is small, suitable for high speed, the limit speed close to the deep groove ball bearings.

3. On the shaft or hole of the processing and the demand is higher, bearing outer axis relative deflection after installation to be kept under strict control, so as not to cause contact stress concentration.

4. The inner ring or outer ring separable, easy to install and disassemble.

Application

The cylindrical roller bearings are widely used in large and medium-sized motor, locomotives, spindle, internal combustion engines, generators, gas turbines, reducer, rolling mill, vibrating screen and lifting transportation machinery, etc.