Detailed description
NA4910 Needle roller bearing characteristics
With inner ring or without inner ring of needle roller bearing consists of a machined outer ring, a needle roller and cage assemblies and a separable inner ring of the complete unit.
The structure has save space with the cross section height;
Outer ring with lubricating oil groove and oil hole.
Needle roller bearings NA4910 with inner ring for shaft cannot be used for needle roller bearing raceway.
With inner ring needle roller bearing used in cannot be used without inner ring bearing applications, or hardened or grinding shaft is not economic. Bearings with inner ring only allows axis relative to the bearing in a certain range with the axial displacement of a standard provided by the inner ring permitting axial displacement is not enough, you can use the broadening inner ring.
Needle roller bearing NA4910 is widely used in machine tools, metallurgical machinery, textile machinery, printing machinery and other machinery and equipment, and can make the mechanical system design very compact and nimble.













