What is ISO 3245 - Rolling bearings about?
ISO 3245 is a machine element geometry standard as defined in the geometrical product specification system (GPS system) as presented in matrix model of ISO 14638.
ISO 3245 specifies the boundary dimensions and preferred dimensions to be used for drawn cup needle roller bearings without inner ring as well as the minimum chamfer dimension limits. ISO 3245 also specifies closed end thickness dimensions for bearings with one closed end.
In addition, ISO 3245 dimensional tolerances for the needle roller complement bore diameter and tolerances for the drawn cup width.
The fundamental rules of ISO/GPS given in ISO 8015 apply to ISO 3245 and the default decision rules given in ISO 14253‑1 apply to specifications made in accordance with ISO 3245, unless otherwise indicated.
Who is ISO 3245 - Rolling bearings for?
ISO 3245 on Rolling bearings is useful for:
- Bearing manufacturers and suppliers
- Mechanical engineers
- Design engineers
- Organizations that design, build and maintain rolling bearings
- Marine industries
- Research and development team
- Inspection bodies
- Quality control personnel
Why should you use ISO 3245 - Rolling bearings?
Proper function of drawn cup needle roller bearings depends on the shaft quality supplied by the user and a required press-fit into an adequate quality housing. The housing should be of sufficient strength to round and size the bearing. ISO 3245 gives suggested tolerances and values for shaft raceway and housing bore.
ISO 3245 covers all the requirements, dimensions and tolerance specifications related to the strength and thickness calculation of bearings. Following the guidelines given in ISO 3245 helps you to design effective rolling bearings.
Following the specifications provided in ISO 3245 lets you manufacture and supply high quality bearings to your customers. These customers will be able to safely use bearings.
What’s changed since the last update?
BS ISO 3245:2015 supersedes BS ISO 3245:2007, which is withdrawn. BS ISO 3245:2015 includes some technical changes with respect to BS ISO 3245:2007. These include:
- Implemented geometrical product specifications
- Included an informative annex on tolerances for shaft raceway and housing bore