Izici:
*Ukuxhumana okunwebekayo okumaphakathi
*Ingakwazi ukumunca ukushaqeka, inxephezele ukuchezuka kwe-radial, angular kanye ne-axial
*Ukumelana nowoyela okuyisisekelo kanye nokufakwa kukagesi
*Izici zokuzungezisa njengewashi nangokuphikisana newashi ziyafana ncamashi
*Eyodwa inama-elastomer amathathu ahlukene okuqina
*Indlela yokulungisa isikulufu esisodwa