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• ABEC Precision Tables
SNFA Super Precision Angular Contact Bearings
Bearing Marking: Individual Bearings and Bearing Groups
Bearing designation is placed on the wider face of the
outer ring. Complete designation (contact angle,
precision, arrangement, type, etc.) of medium to large
size bearing sets is marked on one bearing only. The
remaining bearings of the group have markings indicating
type, trade mark, and country of origin only.
Micron deviations from the nominal value of each bore
and outside diameter are marked on that surface, at the
point of maximum eccentricity (maximum radial
Please Note: The "V" arrow on the bearing outer diameter indicates the direction of thrust applicable to the inner rings of the bearing group. The arrow is placed at the point of maximum outer ring eccentricity.
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