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Index >> Machined needle roller bearing >> Inner ring ,without ubrication hole
d 90-380mm
Product Parameter
Designation Mass m
≈kg 		Principal dimensions
mm 		Raceway F tolerance
μm
d F B r
min 		Upper limit Lower limit
IR110X120X30 409 110 120 30 1 -14 -32
IR110X125X40 840 110 125 40 1.1 -7 -22
IR120X130X30 442 120 130 30 1 -7 -22
IR120X135X45 1044 120 135 45 1.1 -7 -22
IR130X145X35 855 130 145 35 1.1 -17 -37
IR130X150X50 1690 130 150 50 1.5 -17 -37
IR140X155X35 917 140 155 35 1.1 -17 -37
IR140X160X50 1800 140 160 50 1.5 -17 -37
IR150X165X40 1122 150 165 40 1.1 -27 -52
IR160X175X40 1200 160 175 40 1.1 -27 -52
IR170X185X45 1441 170 185 45 1.1 -25 -46
IR180X195X45 1510 180 195 45 1.1 -25 -46
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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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