ISO/TC 4/SC 9 - Tapered roller bearings
Roulements à rouleaux coniques
General Information
Frequently Asked Questions
ISO/TC 4/SC 9 is a Subcommittee within the International Organization for Standardization (ISO). It is named "Tapered roller bearings". This committee has published 6 standards.
ISO/TC 4/SC 9 develops ISO standards. Currently, there are 6 published standards from this subcommittee.
The International Organization for Standardization (ISO) is an independent, non-governmental international organization that develops and publishes international standards. Founded in 1947 and headquartered in Geneva, Switzerland, ISO brings together experts from 170+ member countries to share knowledge and develop voluntary, consensus-based standards that support innovation and provide solutions to global challenges.
A Subcommittee (SC) in ISO operates under a Technical Committee and focuses on a specific subset of the TC's scope. Subcommittees develop standards and technical specifications in their specialized area, reporting to their parent Technical Committee. They may also have working groups for detailed technical work.
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ISO 355:2007 specifies bearing and subunit boundary dimensions for complete single-row and double-row tapered roller bearings. It also specifies the flange dimensions of flanged outer rings for a selection of these bearings. A series designation for each bearing is also specified.
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Specifies the designation structure which includes: the sub-unit prefix, the bearing designator, and the designations of: dimension series, bore size, design variant and tolerance class.
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Applies to bearing and sub-unit boundary dimensions for single-row metric tapered roller. It also specifies a series designation for each bearing. Tolerances are given in separate ISO publications. For front face corners no dimensions are given, however, they should not be sharp.
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