Raw material:

F 131
Equivalent UNE 36-027

100 Cr6
Equivalent DIN

100 C6
Equivalent AFNOR

E S2100
Equivalent AISI/SAE

SUJ-2
Equivalent JIS
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Tapered roller bearings.

Boundary dimensions and series designations:
Metric series ISO R355 equivalent to ANSI/AFBMA 19.1

Inches series ANSI/AFBMA19
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Tolerances:

Metric series ISO 492 & ISO 582 (tolerance normaland 6X class)

Inches series ISO 578 & ISO 1123 (tolerance normal class)
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Load ratings:

Estatic load ISO 76

Dynamic load ISO 281
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