Ball bearing nhyehyɛe .

Ball bearing yɛ nneɛma atitiriw anan: bɔɔl no, ring a ɛwɔ mu, akyi nkaa, ne afiri. General Industrial Ball bearings du AISI 52100 gyinapɛn ahorow ho. Balls ne rings no taa yɛ nea ɛkorɔn-Chromium dade a Rockwell C-scale hardness bɛyɛ 61-65. Nanso, retainer no yɛ den sen bɔɔl ne nkaa no na wobetumi de dade (te sɛ medium-carbon dade ne aluminium aduru) anaasɛ nneɛma a ɛnyɛ dade (te sɛ Teflon, PTFE, ne polymer nneɛma) ayɛ. Ball bearings wɔ rotational friction a ɛba fam sen journal bearings, na ɛde ɔhyew a ɛba fam ba wɔ ahoɔhare koro no ara a ɛkyinkyini no mu.