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ISO bearings

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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.

ISO 81184 thrust roller bearings

ISO 130
260 mm 400

ISO GE 018/32 XES plain bearings

1.5 mm 53.5 mm
91.5 mm 66 mm

ISO NNU4956K V cylindrical roller bearings

1400 r/min 392 mm
27,3 Kg 480

ISO HK0610 cylindrical roller bearings

0,006 Kg 9,88 kN
29 kN 14 mm

ISO LM961548/11 tapered roller bearings

5.3750 in 5.04 in
5.22 in 0.129

ISO NF248 cylindrical roller bearings

1,1 mm 1 mm
18,5 kN 62 mm

ISO 63213 ZZ deep groove ball bearings

41,275 mm 76,2
146,05 41,275

ISO 6316-2RS deep groove ball bearings

4,6 mm 69.85x99.217x17
LL713149/10 17

ISO QJ252 angular contact ball bearings

1398 ZBL.30.1255.201-2SPT
1112x1398x90 1398 mm

ISO 53411 thrust ball bearings

30 mm 76000 N / Dynamic lo
165 128 mm / Tolerance:

ISO NU2928 cylindrical roller bearings

105 mm 0,6 mm
81 mm / Tolerance: h 18000 1/min / Limiti
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