Cylindrial roller bearings have two types, single row(NU,N) and double-row. For single row cylindrical roller bearings, N type structure: the outring with dual-capped edges but inner ring without capped edge; NU type structure: inner ring with dual-capped edges but outer ring without capped edge.
For double-row cylindrical roller bearings, NN type structure: the outer ring with three capped edges but the inner ring without capped edges; NNU type structure: the inner ring with three capped edges but the outer rings without capped edges.
The NN type and the NNU type structure bearings are all floating bearings, for the sake of installing and tear down, their inner rings and outer rings have been designed as ***ached.
The retainer of double-row cylindrical roller bearings is made of steel or brass by machinal cutting.
Cylindrical roller bearings are complete units consisting of machined outer and inner rings and rib guided cylindrical rollers either in a full complement arrangement or with a cage or ***cer In full complement versions, have very high dynamic and static basic load ratings due to the maximum number of cylindrical rollers.
Cylindrical roller bearings have high radial-load capacity and moderate thrust loads, with either a cage or ***cers, are suitable for higher speeds due to the low frictional torque
Application:
Mining, Petroleum Production, Power Generation, Power Transmission, Cement Processing,
Gears and drives, plastics machinery, machine tools, traction motors and pumps.
Features:
1) Include small size, middle size, big size huge size
2) Series/model: N,NJ,NU, NUP NN NJ series (204 - 209 ,224 - 229 ,234 - 239 ,304 - 330 ,404 - 430 ,1016 - 1030 ,2204 - 2230 ,2304 2330 etc ).
3) Size: bore diameter 20 to 150mm
4) Support heavy-radial loads and are suitable for high-speed operations
5) High quality ,competitive price and Good service.
|
Home
