Dimension standards, Boundary dimensions: ISO 15:2011, except for the width of sealed bearings with a BS2- prefix. Tolerances For additional information
DIN 620 and ISO 492 for metric bearings series 60XX and self-aligning bearings WIB ball bearings are manufactured according to the tolerance class DIN P0,
White Paper on bearing tolerance and precision levels including definitions and specifications of ABEC and RBEC precision levels .
Deep Groove Ball Bearings Angular contact ball bearing Cylindrical Roller Bearing - NUP6/558.8M/P6 Cylindrical Roller Bearing - NFP38/630 Cylindrical
d, 55, mm. D, 120, mm. B, 29, mm. d1, ≈, 80.3, mm. d2, ≈, 66.66, mm. D1, ≈, 96.6, mm. a, 51, mm. r1,2, min. 2, mm. r3,4, min. 1, mm