Precision of radial bearings (excepting taper roller bearings)

Unit:um

1)Inner rings (bore)

Bore ∆dmp Vdp Vdmp
Dimension sereis 7,8,9 Dimension series 0,1 Dimension series 2,3,4
d mm P0 P6 P5 P0 P6 P5 P0 P6 P5 P0 P6 P5 P0 P6 P5
overto overto overto overto Max. Max. Max. Max.
2.510 0-8 0-7 0-5 10 9 5 8 7 4 6 5 4 6 5 3
1018 0-8 0-7 0-5 10 9 5 8 7 4 6 5 4 6 5 3
1830 0-10 0-8 0-6 13 10 6 10 8 5 8 6 5 8 6 3
3050 0-12 0-10 0-8 15 13 8 12 10 6 9 8 6 9 8 4
5080 0-15 0-12 0-9 19 15 9 19 15 7 11 9 7 11 9 5
80120 0-20 0-15 0-10 25 19 10 25 19 8 15 11 8 15 11 5
120 150 0-25 0-18 0-13 31 23 13 31 23 10 19 14 10 19 14 7
150 180 0-25 0-18 0-13 31 23 13 31 23 10 19 14 10 19 14 7
180 250 0-30 0-22 0-15 38 28 15 38 28 12 23 17 12 23 17 8

2)Inner rings(rotating precision width)

Bore Kia Sd Sia ∆Bs ∆Bs VBs
(For single bearing) (For matched bearing)
d mm P0 P6 P5 P5 P5 P0 P6 P5 P0 P6 P5 P0 P6 P5
overto overto overto overto Max. Max. overto overto overto overto overto overto Max.
2.510 10 6 4 7 7 0 -120 0 -120 0 -40 0 -250 0 -250 0 -250 15 15 5
1018 10 7 4 7 7 1 -120 1 -120 0 -80 0 -250 0 -250 0 -250 20 20 5
1830 13 8 4 8 8 0 -120 0 -120 0 -120 0 -250 0 -250 0 -250 20 20 5
3050 15 10 5 8 8 0 -120 0 -120 0-120 0 -250 0 -250 0 -250 20 20 5
5080 20 10 5 8 8 0 -150 0 -150 0-150 0 -380 0 -380 0 -250 25 25 6
80120 25 13 6 9 9 0 -200 0 -200 0-200 0 -380 0 -380 0 -380 25 25 7
120150 30 18 8 10 10 0 -250 0 -250 0 -250 0 -500 0 -500 0 -380 30 30 8
150180 30 18 8 10 10 0 -250 0 -250 0 -250 0 -500 0 -500 0 -380 30 30 8
180 250 40 20 10 11 13 0 -300 0 -300 0 -300 0 -500 0 -500 0 -500 30 30 10

Remarks:

1.The Sia tolerance is suitable for deep groove ball bearings & angular contact ball bearings

2.The ∆Bs is suitable for all rings of the matched bearings


3). Outer rings (OD)

D

mm

Dimension sereis 7,8,9 VDp Close type VDmp
Dimension series 0,1 Dimension series 2,3,4 Dimension series
P0 P6 P5 P0 P6 P5 P0 P6 P5 P0 P6 P5 2,3,4 0,1,2,3,4 P0 P6 P5
overto over to overto overto Max. Max. Max. Max. Max.
618 0-8 0-7 0-5 10 9 5 8 7 4 6 5 4 10 9 6 5 3
1830 0-9 0-8 0-6 12 10 6 9 8 5 7 6 5 12 10 7 6 3
3050 0-11 0-9 0-7 14 11 7 11 9 5 8 7 5 16 13 8 7 4
5080 0-13 0-11 0-9 16 14 9 13 11 7 10 8 7 20 16 10 8 5
80120 0-15 0-13 0-10 19 16 10 19 16 8 11 10 8 26 20 11 10 5
120150 0-18 0-15 0-11 23 19 11 23 19 8 14 11 8 30 25 14 11 6
150180 0-25 0-18 0-13 31 23 13 31 23 10 19 14 10 38 30 19 14 7
180250 0-30 0-20 0-15 38 25 15 38 25 11 23 15 11 23 15 8

4)Outer rings(rotating precision &width)

D mm Kea SD Sea ∆Cs VCs
P0 P6 P5 P5 P5 P0 P6 P5 P0 P6 P5
overto Max. Max. Max. Max. Max. overto overto overto Max.
618 15 8 5 8 8 0-120 0-120 0-40 15 15 5
1830 15 9 6 8 8 1-120 1-120 0-80 20 20 5
3050 20 10 7 8 8 0-120 0-120 0-120 20 20 5
5080 25 13 8 8 10 0-120 0-120 0-120 20 20 5
80120 35 18 10 9 11 0-150 0-150 0-150 25 25 6
120150 40 20 11 10 13 0-200 0-200 0-200 25 25 7
150180 45 23 13 10 14 0-250 0-250 0-250 30 30 8

5 ) Flanged outer rings

∆D1s, ∆D2s ∆C1s, ∆C2s
D mm P0 P6 P5 P0 P6 P5
overto overto overto overto overto overto overto
618 125-50 125-50 0-25 0-50 0-50 0-50
1830 125-50 125-50 0-25 0-50 0-50 0-50

Remarks:

1.The VDp & VDmp tolerance are suitable for bearings without any snap rings

2.The Sea tolerance is suitable for deep groove ball bearings & angular contact ball bearings