Flexible. Versatile. responsive.

ABEC 7

INNER RING

Specifications for Metric and Inch Ball Bearings (all tolerances shown are in .0001 inch)

Bore Diameter d

mm

Over
Bore Diameter d

mm

Incl.
Bore Diameter d

Inches

Over
Bore Diameter d

Inches

Incl.
Bore Tolerance Limits

dmin
Bore Tolerance Limits

dmax
Raceway Radial Runout*Width VariationFace Runout w/Bore*Raceway Axial Runout*
01000.3937-1.5+01111
10180.39370.7087-1.5+01111
18300.70871.1811-2+0111.51.5
30501.18111.9685-2.5+01.511.51.5
50801.96853.1496-3+01.51.522
801203.14964.7244-3+021.522
1201504.72447.0866-4+02.522.53
1501804.72447.0866-4+02.522.53
1802507.08669.8425-4.5+032.533

OUTER RING

Specifications for Metric and Inch Ball Bearings (all tolerances shown are in .0001 inch)

Bore Diameter d

mm

Over
Bore Diameter d

mm

Incl.
Bore Diameter d

Inches

Over
Bore Diameter d

Inches

Incl.
Outside Diameter Tolerance Limits

Open Bearings

Dmax
Outside Diameter Tolerance Limits

Open Bearings

Dmin
Outside Diameter Tolerance Limits

Shielded/Sealed Bearings

Dm

High
Outside Diameter Tolerance Limits

Shielded/Sealed Bearings

Dm

Low
Outside Diameter Tolerance Limits

Shielded/Sealed Bearings

Dmax
Outside Diameter Tolerance Limits

Shielded/Sealed Bearings

Dmin
Raceway Radial Runout*Width VariationFace Runout w/OD*Raceway Axial Runout*
01800.7078+0-1.5+0-1.5+1-2.5111.52
18300.70781.1811+0-2+0-2+1-31.511.52
30501.18111.9685+0-2.5+0-2.5+2-4.5211.52
50801.96853.1496+0-3+0-3+2-5211.52
801203.14964.7244+0-3+0-3+3-62.51.522.5
1201504.72445.9055+0-3.5+0-3.5+3-6.53223
1501805.90557.0866+0-4+0-4+3-73223
1802507.08669.8425+0-4.5+0-4.5+4-8.54334
2503159.842512.4015+0-54.5334

WIDTH TOLERANCES

Specifications for Metric and Inch Ball Bearings (all tolerances shown are in .0001 inch)

Bearings Other Than Duplex Width of Individual Inner or Outer Ring

Inner Ring Bore

mm

Over
Inner Ring Bore

mm

Incl.
Inner Ring Bore

Inches

Over
Inner Ring Bore

Inches

Incl.
Width Tolerance LimitsWidth Tolerance Limits
01000.3937+0-16
10180.39370.7078+0-32
181800.70787.0866+0-50
1803157.086612.4015+0-100

Duplex Bearings Total Width of Inner or Outer Ring*

Inner Ring Bore

mm

Over
Inner Ring Bore

mm

Incl.
Inner Ring Bore

Inches

Over
Inner Ring Bore

Inches

Incl.
Width Tolerance LimitsWidth Tolerance Limits
08003.1496+0-200
801803.14967.0866+0-300
1803157.086612.4015+0-400

* If other than a pair of bearings is involved, the tolerances are in proportion to the number of bearings.

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