What is ISO 31657‑2 about?
ISO 31657‑2 is the second part of a series of documents on multi-lobed bearings. ISO 31657‑2 specifies the characteristic values for selected two-, three- and four-lobe bearings.
The functions plotted and listed in the table form below are required for the operationally safe design of hydrodynamic multi-lobed journal bearings according to ISO/TS 31657-1. They are based on the presumptions and boundary conditions indicated there and only apply to stationary operating states.
The symbols used are explained in ISO/TS 31657-1; calculation examples are also included there.
Who is ISO 31657‑2 for?
ISO 31657‑2 on multilobed journal bearings is relevant to:
- Manufacturer of multi-lobed journal bearings
- Suppliers and customers of multi-lobed journal bearings
- Mechanical engineer
- Mechanical drafters
Why should you use ISO 31657‑2?
Multilobe bearings are designed to transfer high axial loads from rotating shafts with minimum power loss.
ISO 31657‑2 provide information on functions for calculation of two-lobe bearings, three-lobe bearings, four-lobe bearings, characteristic curves for four-lobe bearings
As a buyer of ISO 31657‑2, you can be ensured of all the functions used in the calculation procedure required to design and operate multilobe bearings. ISO 31657‑2 helps you in manufacturing high-quality multilobe bearings. With the necessary guidance and compliance to ISO 31657‑2, the user can improve the quality and operation of multilobe bearings.
