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Index >> Machined needle roller bearing >> Inner ring ,without ubrication hole
d 35-85mm
Product Parameter
Designation Mass m
≈kg 		Principal dimensions
mm 		Raceway F tolerance
μm
d F B r
min 		Upper limit Lower limit
IR75X85X30 287 75 85 30 1 -4 -17
IR75X85X35 336 75 85 35 1 -4 -17
IR75X85X54 520 75 85 54 1 -4 -17
IR80X90X25 253 80 90 25 1 -4 -17
IR80X90X30 304 80 90 30 1 -4 -17
IR80X90X35 355 80 90 35 1 -4 -17
IR80X90X54 556 80 90 54 1 -4 -17
IR85X95X26 277 85 95 26 1 -14 -27
IR85X95X36 388 85 95 36 1 -14 -27
IR85X100X35 582 85 100 35 1.1 -14 -27
IR85X100X63 1054 85 100 63 1.1 -14 -27
LR35X40X12.5 27.2 35 40 12.5 0.3 - -
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Introduction
features the inner ring is made of hardened bearing steel and has a finish machined or ground raceway. application occasions: The shaft cannot be used as bearing raceway. Bearing types include needle roller and cage assembly, open or closed stamped outer ring needle roller bearing and machined needle roller bearing in order to ensure that the shaft can have a large displacement relative to the bearing seat, the needle roller bearing must be paired with the wide inner ring for use lip sealing requires optimization of the running surface. inner ring IR has a finishing raceway. the chamfering of the end face makes the inner ring easy to install into the bearing and prevents damage to the sealing lip. there are two kinds of inner rings with and without lubrication holes. ferrule with lubrication hole, its suffix is is1 . inner race LR has grinding raceway. The end face has been turned and the sharp corners have been removed. the tolerance of this inner ring is larger than that of the type IR . Therefore, they are suitable for applications with large width tolerance and small axial runout requirements. the machining surplus of the special designed inner race (suffix is VGS ) is Z . Its value is related to the raceway diameter, as shown in the table below.
raceway diameter machining allowance diameter of pre grinding raceway
F Z F VGS
mm mm & nbsp;
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