Radial Ball Bearings Radial Ball Bearings - Rainbow Precision ...

ENGINEERING DATA
TOLERANCES OF RADIAL BALL BEARINGS
TABLE 4
PRECISION CLASS ABEC-3 — Metric
Inner Ring unit um (.001 mm)
Vdp
d diameter series
mm ∆dmp 7,8,9 0,1 2,3,4 Vdmp Kia ∆Bs VBs
over incl. high low max max max max max high low max
0.6 2.5 0 -7 9 7 5 5 5 0 -40 12
2.5 10 0 -7 9 7 5 5 6 0 -120 15
10 18 0 -7 9 7 5 5 7 0 -120 20
18 30 0 -8 10 8 6 6 8 0 -120 20
30 50 0 -10 13 10 8 8 10 0 -120 20
50 80 0 -12 15 15 9 9 10 0 - 150 25
80 120 0 -15 19 19 11 11 13 0 -200 25
120 180 0 -18 23 23 14 14 18 0 -250 30
180 250 0 -22 28 28 17 17 20 0 -300 30
250 315 0 -25 31 31 19 19 25 0 -350 35
315 400 0 -30 38 38 23 23 30 0 -400 40
400 500 0 -35 44 44 26 26 35 0 -450 45
Outer Ring unit um (.001 mm)
VDp
Open Bearings Capped
D diameter series Bearings
mm ∆Dmp 7,8,9 0,1 2,3,4 0,1,2,3,4 VDmp Kea ∆Cs VCs
over incl. high low max max max max max max high low max
2.5 6 0 -7 9 7 5 9 5 8
6 18 0 -7 9 7 5 9 5 8
18 30 0 -8 10 8 6 10 6 9
30 50 0 -9 11 9 7 13 7 10
50 80 0 -11 14 11 8 16 8 13
80 120 0 -13 16 16 10 20 10 18
120 150 0 -15 19 19 11 25 11 20
150 180 0 -18 23 23 14 30 14 23
180 250 0 -20 25 25 15 – 15 25
250 315 0 -25 31 31 19 – 19 30
315 400 0 -28 35 35 21 – 21 35
400 500 0 -33 41 41 25 – 25 40
Identical to ∆Bs and
VBs of inner ring of
the same bearing
57