IR 50x58x40 Inner ring SKF - 1 pcs.
Inner ring SKF IR 50X58X40. Dimensions d×F×B: 50×58×40 mm. Variant without lubrication hole, hardened and ground. Sales unit: 1 pcs.

Inner ring SKF IR 50X58X40
SKF IR-series needle roller bearing inner ring, with dimensions d × F × B: 50 × 58 × 40 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 50X58X40.

Catalogue dimensions and tolerances
d — bore diameter: 50 mm.
F — raceway diameter (outside diameter): 58 mm.
B — ring width: 40 mm.
r, r₁,₂ min — minimum chamfer dimension: 0,6 mm.
Δdmp — mean bore diameter deviations: upper 0 mm; lower -0,012 mm.
ΔFmp — mean raceway diameter deviations: upper 0 mm; lower -0,011 mm.
ΔBs — width deviations: upper 0 mm; lower -0,12 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 50X58X40 SKF from the IR series. Bore diameter is 50 mm, raceway diameter 58 mm and width 40 mm.
What tolerances does the catalogue state for this size?
Mean bore diameter deviations are 0 / -0,012 mm, and mean raceway diameter deviations 0 / -0,011 mm. Width deviations are 0 / -0,12 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 50X58X40.
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Jednostka sprzedaży1 szt.
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Rodzaj elementuPierścień wewnętrzny łożyska igiełkowego
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Szerokość B40 mm
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ProducentSKF
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Średnica otworu d50 mm
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Oznaczenie producentaIR 50X58X40
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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 F58 mm
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Wymiar fazowania r, r₁,₂ min0,6 mm
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Odchyłki średniej średnicy otworu Δdmp0 / -0,012 mm
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Odchyłki średniej średnicy bieżni ΔFmp0 / -0,011 mm
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Odchyłki szerokości ΔBs0 / -0,12 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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