11 Primagra - Bearings, Belts, Inductors, Oil retainer rings, Grease fillers, Bearing pullers

Bearings - Inner rings

Type

IR – precision machined raceways

LR – ground raceways

Suffixes

Features

Standard design

Special design

Internal design

-

-

External design

-

IS1 – with one lubrication hole

VGS – with machining allowance z on raceway

EGS – Surface ground free from spiral marks for rotary shaft seal to DIN 3760 and DIN 3761

Tolerance class

PN(P0) – tolerances class “normal“, formerly P0, are not especially marked

-

Radial internal clearance

CN - normal, are not especially marked

C3 - radial internal clearance larger than normal

C4 – radial internal clearance larger than C3

C2 – radial internal clearance smaller than normal

Applications

They are used where:

  • The shaft cannot be used as a raceway for needle roller and cage assemblies, drawn cup needle roller bearings with open ends or with closed ends and needle roller bearings
  • Needle roller bearings must be combined with wider inner rings in order to allow larger axial displacements of the shaft in relation to the housing
  • Optimum running surfaces are required for seal lips
Series IR; IR…IS1; LR;

 

Request Technical Support

Bearings - Inner rings

Product Info


(exe: 6205, NUP302, 32202)

exe: TIM, FAG, URB, NSK

mm

mm

mm

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