Rolling bearings. Ceramic bearing balls. Determination of strength by notched ball test Ingestion-build-209418 BS EN 12259-1 on sprinklers

BS EN 12259-1 on sprinklers is useful for:

the thermal output and the losses are established

It applies to multiple probing systems consisting of different types of probes (such as an imaging probe combined with a contacting probe

BS EN ISO 12402‑4:2020 has some technical changes

Rolling bearings. Ceramic bearing balls. Determination of strength by notched ball test Ingestion-build-209418 BS EN 12259-1 on sprinklers1 Scope This document specifies a method for the determination of the strength of finished ceramic balls for ball bearings, preferably made of silicon nitride (Si3N4), with ball diameters from 3 mm to 50 mm. NOTE 1 ISO 26602 specifies the requirements for preprocessed silicon nitride materials for rolling bearing balls. ISO 32902specifies requirements for finished silicon nitride balls for rolling bearings. NOTE 2 Other test methods to determine