>> P.220
■Types■Identification NumberNeedle Roller Bearings with Separable Cage are The identication number of Needle Roller Bearings available in the types shown in Table 1.with Separable Cage consists of a model code, Table 1 Type of bearingSingle-rowDouble-rowTypeWithout inner ringWith inner ring(1)Without inner ringWith inner ring(1)dimensions, any supplemental codes and a classica-tion symbol. The arrangement examples are as fol-lows.Model codeRNAFNAFRNAFWNAFWExamples of identication numberNote(1) or the Needle Roller Bearings with Separable Cage with inner rings, the needle roller bearings and inner rings will be delivered separately. Please contact IKO if in need of delivery as an integrated product.Example 1Model codeDimensionsSupplementalcodeRNAF7148NNeedle Roller Bearings with Separable Cage - Without Inner RingThe single-row as well as the double-row types are available with the same sectional height, and either of them can be selected according to load conditions. As shown in the section, "Design of shaft and hous-ing" on page A44, any desired radial internal clear-ance can be selected by combining a shaft which is heat-treated and nished by grinding.Needle Roller Bearings with Separable Cage - With Inner RingThese bearings are made to the CN clearance shown in Table 19 on page A37. When especially high accu-racy is required, it is possible to supply semi-nished inner rings which have a nishing allowance on their outside diameter so that they can be ground after being press-tted to shafts.Type of bearing Roller set bore diameter(7mm)Nominal outside diameter(14mm)Bearing width(8mm)Cage made of synthetic resinExample 2Model codeDimensionsSupplementalcodeClassificationsymbolNAFW304526C2P5Type of bearingNominal bore diameter(30mm)Nominal outside diameter(45mm)Bearing width(26mm)Clearance symbol (C2 clearance)Accuracy class (Class 5)D81
| < 
| 
> | 
>>
