IR 80x90x25 Inner ring SKF - 1 pcs.
Inner ring SKF IR 80X90X25. Dimensions d×F×B: 80×90×25 mm. Variant without lubrication hole, hardened and ground. Sales unit: 1 pcs.

Inner ring SKF IR 80X90X25
SKF IR-series needle roller bearing inner ring, with dimensions d × F × B: 80 × 90 × 25 mm.
Design
The ring is hardened and ground. The raceway has a precision-ground surface and lead-in chamfers on both sides. This variant has no lubrication hole.
Sales unit
One sales unit includes 1 inner ring SKF IR 80X90X25.

Catalogue dimensions and tolerances
d — bore diameter: 80 mm.
F — raceway diameter (outside diameter): 90 mm.
B — ring width: 25 mm.
r, r₁,₂ min — minimum chamfer dimension: 1 mm.
Δdmp — mean bore diameter deviations: upper 0 mm; lower -0,015 mm.
ΔFmp — mean raceway diameter deviations: upper -0,004 mm; lower -0,017 mm.
ΔBs — width deviations: upper 0 mm; lower -0,15 mm.
For the bore and width, the SKF catalogue specifies the Normal class according to ISO 492. The raceway diameter has the separate deviations stated above. The product illustration shows the SKF ring family; our own catalogue diagram is not a production drawing.
Questions and answers
Which SKF ring variant does this offer include?
The offer is for IR 80X90X25 SKF from the IR series. Bore diameter is 80 mm, raceway diameter 90 mm and width 25 mm.
What tolerances does the catalogue state for this size?
Mean bore diameter deviations are 0 / -0,015 mm, and mean raceway diameter deviations -0,004 / -0,017 mm. Width deviations are 0 / -0,15 mm.
Does this ring have a lubrication hole?
No. The offer is for the variant without suffix IS1, which SKF uses to designate a version with a lubrication hole.
What does one sales unit include?
One sales unit includes 1 inner ring SKF IR 80X90X25.
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Jednostka sprzedaży1 szt.
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Rodzaj elementuPierścień wewnętrzny łożyska igiełkowego
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Szerokość B25 mm
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ProducentSKF
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Średnica otworu d80 mm
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Oznaczenie producentaIR 80X90X25
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SeriaIR
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Otwór smarowyBrak; wariant bez przyrostka IS1
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ObróbkaHartowanie
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Średnica bieżni F90 mm
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Wymiar fazowania r, r₁,₂ min1 mm
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Odchyłki średniej średnicy otworu Δdmp0 / -0,015 mm
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Odchyłki średniej średnicy bieżni ΔFmp-0,004 / -0,017 mm
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Odchyłki szerokości ΔBs0 / -0,15 mm
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Klasa tolerancji otworu i szerokościNormalna wg ISO 492; wartości katalogowe SKF
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Wykończenie bieżniPrecyzyjne szlifowanie
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Fazowanie bieżniObustronne fazy wprowadzające

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