ball bearing . EKI terminibaas Esterm. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//esterm/ball%20bearing/1/eng (20.06.2026)
ball bearing . Purjetamise terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//pur/ball%20bearing/1/eng (20.06.2026)