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Inner Ring IR8x12x12.5 8x12x12.5 mm

Item number: IR8x12x12.5

The inner ring IR8x12x12.5 is combined with needle roller and cage assemblies, needle rollers, drawn cup needle rollers or drawn cup needle rollers with closed ends. Main dimensions according to DIN 620.

Category: All Needle Roller Bearings

Shipping time: Available

From pcsPrice per unit
42,71 €
102,57 €
502,51 €
2002,43 €
10002,31 €
2,86 €

including 19% VAT., plus shipping charge

Free shipment from 50 Euros
(inside of Germany)

Technical ScribbleZoomable

Technical Data

Inside Ø (mm):8
Outside Ø (mm):12
Width (mm):12.5
Tolerance for inside-Ø (mm):0/-0,008
Tolerance for outside-Ø (mm):-0,004/-0,018
Tolerance for width (mm):0/-0,12
Ring Material:Rolling bearing steel
Product weight: 0,0060 kg


  • they are made of hardened rolling bearing steel
  • they have a precision machined raceway
  • the chamfers at the front sides make possible an easy insertion into the bearing and prevent damages at the seal lip
  • In addition to this article, we can also offer bearings of the brands FAG, KOYO, NSK, SKF, SNR, etc. on request.


  • if it is not possible to use the shaft as raceway in case of needle roller and cage assemblies, drawn cup needle roller bearings, drawn cup needle roller bearings with closed end and needle roller bearings
  • if needle roller bearings have to be combined with broader inner rings
  • in order to make possible larger axial displacements of the shaft towards the housing
  • if there is the necessity of an optimal tread for the seal lip

Further Information



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