Products

These combined bearings:
consist of a radial needle roller bearing and an angular contact ball bearing
accommodate heavy radial loads, carried exclusively by the needle roller bearing
accommodate light axial loads, carried exclusively by the angular contact ball bearing
are low cross section bearings
can operate at high speeds
are separable, i.e. the inner ring can be mounted separately from the outer ring and rolling element and cage assemblies
can be grease or oil lubricated, depending on the application
In the case of grease lubrication, both the needle roller and angular contact ball bearings should be filled with the same lubricant prior to mounting.

NKIB series bearings:
can locate the shaft in both directions
have axial clearance, between 0,08 and 0,25 mm
have a two-piece inner ring to facilitate mounting
When mounting the inner ring, it is important that the two pieces are axially clamped to one another
have inner rings, which are not interchangeable with those from another seemingly identical bearing

NKIB 5908 Combined needle roller bearings detail Specifications

Main Dimensions
Bore diameter(d):40mm
Raceway diameter inner ring(F): 48mm
Outer diameter(D):62mm
Width(B):34mm
Width of outer ring(C):30mm
Chamfer dimension (rs) min. :0.6mm
Dynamic load ratings Radial(Cr):43KN
Static load ratings Radial (Cor): 67KN
Dynamic load ratings Axial (Ca):7.4KN
Static load ratings Axial (Coa): 10.9KN
ABUTMENT DIMENSIONS
Diameter of shaft abutment(da)min.:44 mm
Diameter of housing abutment(Da)max.:58 mm
Radius of fillet(ra): max.0.6 mm