TZR Bearing Machine Development Co., Ltd
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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.

ISO NF340 cylindrical roller bearings

ALFA / 147 / engine 6026
CX454 VKBA 3503

ISO 619/8-2RS deep groove ball bearings

48 mm 83 mm
35,1 kN UCHA210-32

ISO NNU4926K V cylindrical roller bearings

21 ISO
40 68 mm

ISO NUP3216 cylindrical roller bearings

65 mm 100 mm
18 93 mm

ISO 395/394A tapered roller bearings

45 mm 115 kN
TV4562 62,19 mm

ISO 234738 thrust ball bearings

51 mm 30
30 mm 52,9 mm

ISO 21307W33 spherical roller bearings

PCMW 527802 M 2
7316571351391 78

ISO NUP1928 cylindrical roller bearings

66,000 mm 140,000
140,000 mm NTN

ISO MR117ZZ deep groove ball bearings

15,7 kg / Weight 239 mm / Tolerance:
295000 N / Static lo 220x340x56

ISO NP29/630 cylindrical roller bearings

11000 rpm 10.3 kN
15.9 kN O.D. Groove

ISO NF420 cylindrical roller bearings

AST 0.095
0.0046 0.072

ISO UCFL310 bearing units

16,000 22,000 mm
NTN 22,000
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