The Timken ISOCLASS Bearing Spectrum

Posted by Sally Voelske on May 24, 2011

The 30000 series bearings included in the original ISO/R355 standard, often referenced as DIN720, now constitute the core of the IsoClass line of metric bearings.

A wide range of spacer assemblies is available for numerous applications in the original-equipment and replacement markets.

Most single-row standard IsoClass bearings can be supplied as a two-row, pre-set, ready-to-fit assembly by adding spacers machined to pre-determined dimensions and tolerances.

Modified and flanged IsoClass bearings are indicated by prefixes and/or suffixes to the basic part number.  These bearings are not interchangeable with bearings sharing the same basic part number.

The ISO 355 international  metric standard defines dimensions and cup angles for single-row tapered roller bearings.  Originally intended to replace the ISO/R 355 standard, the new ISO 355 standard defined additional bearings and created new designation codes for the entire dimensional codes for the entire dimensional spectrum of ISO 355 metric bearings.

Because new designation codes for bearings that were in accordance with both the old and new standards.

Last modified on May 18, 2011

Categories: Bearings, Informational, Tapered Roller Bearings

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