Ama-deep groove ball bears ikakhulukazi athatha umthwalo we-radial futhi athathe umthwalo we-axial omaphakathi.Nge-coefficient encane yokungqubuzana, isivinini esikhawula kakhulu, ububanzi bosayizi omkhulu kanye nenhlanganisela enemibala yesakhiwo;zilungele ugandaganda, izinjini, izimoto, izithuthuthu, neminye imishini evamile, njengohlobo olusetshenziswa kakhulu lwamabhodi embonini yemishini.