ISO Bearing

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Most rolling bearings follow ISO standard dimensions, which is a prerequisite to enable interchangeability. The ISO general plan for radial bearings provides several series of standardized outside diameters for every standard bore diameter. They are called diameter series and are numbered 7, 8, 9, 0, 1, 2, 3 and 4 (in order of increasing outside diameter). Within each diameter series, different width series exist (width series 8, 0, 1, 2, 3, 4, 5 and 6 in order of increasing width).shows diameter series 0, 2 and 3 combined with width series 0, 1, 2 and 3. For thrust bearings, height series are used instead of width series. Height series are numbered 7, 9, 1 and 2. Bearings to ISO general plans have the same boundary dimensions when they share the same bore diameter and dimension series. If not, they have different boundary dimensions.

The boundary dimensions for metric bearings are standardized in the ISO2) general plans:ISO 15 for radial rolling bearings, except insert bearings, some types of needle roller bearings and tapered roller bearings,ISO 104 for thrust bearings,ISO 355 for tapered roller bearings.

Bearing Number Bore Dia Outer DIa Width Size
50 mm x 110 mm x 27 mm ISO 6310 ZZ ISO Bearing LM501300 LM501349 LM501310 Imperial
850 mm x 1120 mm x 200 mm ISO 239/850 KCW33+AH39/850 ISO Bearing Cylindrical Bore Double Shield Single Row 0.082 kg
70 mm x 120 mm x 37 mm ISO 33114 ISO Bearing 28000 28159 28300X Imperial
380 mm x 520 mm x 140 mm ISO SL024976 ISO Bearing LM501300 LM501349A LM501311 Imperial
600 mm x 1090 mm x 155 mm ISO NUP2/600 ISO Bearing M38500 M38549H M38511 Imperial
ISO 54411 ISO Bearing LM501300 LM501349 LM501310A Imperial
ISO Q338 ISO Bearing 67800 67887 Imperial Stamped Steel
9 mm x 17 mm x 4 mm ISO FL618/9 ISO Bearing 95000 95500 95926 Imperial
ISO 7022 CDB ISO Bearing 14500 14585 14525 Imperial
200 mm x 310 mm x 109 mm ISO 24040W33 ISO Bearing 29000 29168 29334 Imperial
670 mm x 980 mm x 136 mm ISO NJ10/670 ISO Bearing 27600 27680 Imperial Stamped Steel
ISO HK283824 ISO Bearing 28000 28158 28300X Imperial
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