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Deep Groove Ball Bearing Tolerance Class ABEC-7 (P4)

Inner Ring
Unit：μm
Nominal Bearing Bore
(d/mm) 		Δdmp Δds Vdp⑵ Vdmp Kia Sd Sia(3) ΔBs VBs
Diameter Series
7,8,9 0,1,2,3,4,7
More than To Upper Limit Lower limit Upper Limit Lower limit maximum maximum maximum maximum maximum Upper Limit Lower limit maximum
0.6(1) 2.5 0 -4 0 -4 4 3 2 2.5 3 3 0 -40 2.5
2.5 10 0 -4 0 -4 4 3 2 2.5 3 3 0 -40 2.5
10 18 0 -4 0 -4 4 3 2 2.5 3 3 0 -80 2.5
18 30 0 -5 0 -5 5 4 2.5 3 4 4 0 -120 2.5
30 50 0 -6 0 -6 6 5 3 4 4 4 0 -120 3
50 80 0 -7 0 -7 7 5 3.5 4 5 5 0 -150 4
80 120 0 -8 0 -8 8 6 4 5 5 5 0 -200 4
120 180 0 -10 0 -10 10 8 5 6 6 7 0 -250 5
Note: (1) 0.6 is also included.    (2) 7 diameter series refers to the miniature bearing 7 series defined in GB273.3.
Outer Ring
Unit：μm
Nominal outside diameter of bearing
(D/mm) 		ΔDmp ΔDs VDp⑵(3)(4) VDmp Kea SD(4) Sea(4)(5) ΔCs VCs
Diameter Series
7,8,9 0,1,2,3,4
More than To Upper Limit Lower Limit Upper Limit Lower Limit maximum maximum maximum maximum maximum Upper Limit Lower Limit maximum
2.5(1) 6 0 -4 0 -4 4 3 2 3 4 5 with bearing inner ring
ΔBs、VBs are the same 		2.5
6 18 0 -4 0 -4 4 3 2 3 4 5 2.5
18 30 0 -5 0 -5 5 4 2.5 4 4 5 2.5
30 50 0 -6 0 -6 6 5 3 5 4 5 2.5
50 80 0 -7 0 -7 7 5 3.5 5 4 5 3
80 120 0 -8 0 -8 8 6 4 6 5 6 4
120 150 0 -9 0 -9 9 7 5 7 5 7 5
150 180 0 -10 0 -10 10 8 5 8 5 8 5
180 250 0 -11 0 -11 11 8 6 10 7 10 7
Note: (1) 2.5 is also included.    (2) These deviations apply to the 1,2,3,4,7 diameter series.    (3) Not applicable to closed bearings.    (4) 7 diameter series refers to the miniature bearing 7 series defined in GB273.3.