Tambanudza bhora mabheyaringi akagadzirirwa kutsigira kutakura mitoro panguva yekumhanya-mhanya mashandiro, uye anoumbwa neasher-dzakaumbwa ma-ferrules ane bhora rinotenderera ma grooves. Nekuti iyo mhete iri muchimiro chemukoko, kukanda bhora mabheyari akapatsanurwa kuita maviri marudzi: flat base base cushion mhando uye yekuzvimiririra-inowirirana idenderedzwa cushion mhando. Uye zvakare, iyi mhando yekutakura inogona kutakura axial mutoro, asi haigone kutakura radial mutoro.