Straksa bilong kisim bal

Wanpela bal bearing i gat 4-pela as samting: bal, ring insait, ring ausait, na keis. Ol jenerol indastriel bal bering i inapim AISI 52100 standet. Ol bal na ring ol i save wokim long hai-}kromium stiel wantaim wanpela Rokwell C-skeil hatnes bilong samting olsem 61{{6}65. Tasol dispela man i holim i stap, em i gat strong i daunbilo tru winim ol bal na ring na ol inap wokim long ain (olsem medium-}kabon stiel na aluminium aloi) o ol samting i no bilong metalik (olsem Teflon, PTFE, na ol samting bilong polima). Ol bal bering i gat liklik rotesen friksen winim ol jenol bearing, na dispela i mekim na ples i no hat tumas long wankain rotesen spit.