Stainless steel spherical roller bearing

Stainless steel spherical roller bearing is new design of spherical roller bearing family,this kind of bearing have the same with traditional,what is the different is that the traditional bearing used chrome steel material,so the stainless steel spherical roller bearing adopted stainless steel,the inner & outer & element & rollers are all adopt AISI SUS440C（the same standard with 9Cr18 or 9Cr18Mo), after heat treatment under Vacuum process,the cage used AISI316 or AISI304(OGr18Ni9)material, the precision can be P6 according to the ISO standard.
Stainless steel spherical roller bearing have stronger anti-rust and Corrosion than normal spherical roller bearing,working with the good quality Lubricants and shields,it can working under the environment high temperature -60C~+300C,stainless steel spherical roller bearing can carry higher mechanical strength and stronger load capacity,this kind of bearing are widely used in food machinery,printing-make machine,pulp and paper industry etc.,it can reduce the unplanned downtime,improve reliability than the normal spherical roller bearing,also reduce the maintenance costs and boost productivity,extend service life becuase of stainless steel.

NACHI spherical Roller Bearing

NACHI spherical Roller Bearing comes from NACHI-FUJIKOSHI CORP,JAPAN who founded in December 21,1928,he expanded its operations into fields of tools and bearing based on quality  materials,the only one company in the world is so involved in machining equipment like tools ,robots ,bearings,hydraulic equipment and materials.spherical roller bearing must adopt high quality chrome steel materials and also carburizing steel for special applications,it can sustain radial and axial loads.for the size and configuration of NACHI spherical roller bearing,you can see the the following table:

we can see that there are the similar design with the other brand spherical roller bearing,NACHI spherical roller bearing have pressed steel and brass cage also,Most of NACHI spherical roller bearing have lubrication groove and lubrication holes on the outer ring,so its easy to feeding lubricant when maintenance for the machine,the suffix of NACHI spherical roller bearing W33 mean lubrication holes and groove,for example 22330EW33,W20 mean lubrication holes,for example 22330EW20.

Radial Internal Clearance of Spherical Roller Bearings with Cylindrical Bore (ISO)

Radial Internal Clearance of Spherical Roller Bearings with Tapered Bore (ISO)

spherical roller bearing installation

spherical roller bearing is consist of inner ring,outer ring,spherical rollers and cage,there are two raceway in the inner ring and one spherical raceway in the outer ring,the center of curvature of the raceway in outer ring is coincident with the centre of the bearing,so spherical roller bearing have the self-aligning function like the self-aligning ball bearing, when deflection occured between shaft and housing ,it can adjust the capacity and shaft load in double directions,Large radial load capacity are used in high capacity and shocked load, the tapered bore inner ring of the bearings can be installed directly,or using an adapter sleeve to install on the cylindrical shaft,the cage can be Pressed steel,brass materials.

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