What is ISO 4156-1 about?
ISO 4156-1 is the first part of a multi-series of documents applicable to straight cylindrical involute splines. ISO 4156-1 provides the data and indications necessary for the design and manufacture of straight (non-helical) side-fitting cylindrical involute splines.
ISO 4156-1 introduces you to product parameters such as limiting dimensions, tolerances, manufacturing deviations and their effects on the fit between connecting coaxial spline elements by providing various formulas.
Limiting dimensions, tolerances, manufacturing deviations and their effects on the fit between connecting coaxial spline elements are defined in the formulae and given in the tables.
Note: Unless otherwise specified, linear dimensions are expressed in millimetres and angular dimensions in degrees.
Who is ISO 4156-1 for?
ISO 4156-1 on straight cylindrical involute splines is useful for engineering professionals involved with design, manufacture and inspection of involute spline components. ISO 4156-1 largely caters to professionals in sectors such as:
- Aerospace
- Automotive
- Defence
- Mining
- Pharmaceuticals
- Marine application
- Power generation
- Manufacture of machine tools
- Food handling and processing
Why should you use ISO 4156-1?
Straight cylindrical involute splines manufactured in obedience to ISO 4156 are used for sliding, clearance and interference connections of shafts and hubs and contain all the necessary characteristics for the assembly, economic production and transmission of torque.
As an engineering professional dealing with involute spline, ISO 4156-1 helps in minimizing tooling cost.
Moreover, ISO 4156-1 can help you develop expertise of product end-users, expanding reach to wider markets and building trust.
ISO 4156-1 contributes to UN Sustainable Development Goal 7 on ensuring access to affordable, reliable, sustainable and modern energy for all because its use can support renewable power generation.
What’s changed since the last update?
ISO 4156-1:2021 supersedes ISO 4156‑1:2005, which is withdrawn. The revision of ISO 4156-1:2021 includes corrections in typographical, grammatical, diagrammatical, and technical errors that provides an enhanced technical perspective to its users.