ISO Bearing

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Standard Internal Radial Clearance values for deep groove ball, cylindrical roller, and spherical roller bearings are found in Tables XV through XXII. Please note that there are different standards for metric deep groove ball bearings and inch ball bearings, as well as ISO cylindrical roller bearings and domestic cylindrical roller bearings. Also, the IRC values differ for straight bore bearings versus bearings with a tapered bore. There are no standards for tapered roller bearings. “Clearance” values for these bearings are expressed axially as “lateral” or “Bench End Play” (BEP) and are designed and specified for each application.

A word of caution, regarding IRC for those selecting ISO deep groove ball, cylindrical roller, and spherical roller bearings, is the “Normal” IRC shown in the tables for these bearings is not sufficient for these bearings if the bearing employs a “heavy” shaft fit. A heavy fit in most cases requires a “C3” IRC as a bearing with a “Normal” IRC could be too tight. A light to medium fit with a relatively high operating speed that generates heat also requires a “C3” IRC. If both a heavy fit is used along with a high speed, a “C4” IRC is typically required. Very few bearings with “Normal” IRC are used or stocked, with “C3” bearings being the most popular. For complicated applications, we recommend that users of our bearings contact our sales department for specific fitting and clearance recommendations.

85 mm x 180 mm x 85,7 mm ISO UCFC217 bearing units

1.4 4 Bolt Square Flange
0.64 Set Screw

488,95 mm x 634,873 mm x 84,138 mm ISO LM772748/10 tapered roller bearings

0 84833080
1.26 Inch | 32 Milli N/A

150 mm x 320 mm x 108 mm ISO NH2330 cylindrical roller bearings

Not Applicable Inner Ring Guided
Spherical Roller Bea Bearing

4 mm x 16 mm x 5 mm ISO E4 deep groove ball bearings

Yes Flange Block Bearing
4.063 Inch | 103.2 M 1 Piece Solid

55 mm x 100 mm x 35 mm ISO UK211+H2311 deep groove ball bearings

31171501 M06110
Set Screw Bearing

ISO K15x18x14 needle roller bearings

4 Bolt Pillow Block; N/A
Pillow Block Inch

50 mm x 110 mm x 27 mm ISO 20310 spherical roller bearings

M268749 (2) | M26871 0053893572741
0 Inch | 0 Millimete Tapered Roller Beari

ISO K05X09X10 needle roller bearings

B04311 NSK
0029176821813 0.0

ISO Q316 angular contact ball bearings

0087796232990 Bearings

ISO BK3016 cylindrical roller bearings

97 13.2 Inch | 335.3 Mi

104,775 mm x 180,975 mm x 48,006 mm ISO 782/772 tapered roller bearings

Shaft Mount 110MM Straight Bore;
Spherical 4.331 Inch | 110 Mil

400 mm x 540 mm x 65 mm ISO 61980 deep groove ball bearings

42 mm 12 mm
SKF -30 to +180 &de