Hoʻohana pinepine ʻia ka 6200 kiʻekiʻe kiʻekiʻe o Kina i ka hana kiʻekiʻe a i ʻole ka wikiwiki.ʻO kāna mau mea maikaʻi ʻo ia ka lōʻihi, haʻahaʻa friction coefficient, kiʻekiʻe kiʻekiʻe ka wikiwiki, ka hana maʻalahi, ke kumu kūʻai haʻahaʻa, a me ka maʻalahi o ka hoʻokō pono o ka hana kiʻekiʻe.Hele mai ia ma nā ʻano nui a me nā ʻano like ʻole a hiki ke hoʻohana ʻia i nā mea kani pololei, nā kaʻa haʻahaʻa haʻahaʻa, nā kaʻa, nā kaʻa, a me nā ʻoihana mīkini maʻamau.Me ka kānalua ʻole, ʻo ka bear groove ball ka mea i hoʻohana nui ʻia i ka ʻoihana mechanical.