Ma Spherical Plain Bearings, omwe amadziwikanso kuti mayendedwe olumikizana, ndi zida zamakina zomwe zimapangidwa mwapadera kuti zigwirizane ndi kusakhazikika kwa angular ndi mayendedwe ozungulira kapena ozungulira pakati pa magawo olumikizidwa. Mosiyana ndi mayendedwe a mpira kapena odzigudubuza, amakhala ndi mawonekedwe ozungulira ozungulira (mphete yamkati) yomwe imamveka mkati mwa mphete yozungulira yofananira. Kapangidwe kameneka kamalola kuyenda m’njira zingapo nthawi imodzi.

Ma Spherical Plain Bearings, omwe amadziwikanso kuti mayendedwe olumikizana, ndi zida zamakina zomwe zimapangidwa mwapadera kuti zigwirizane ndi kusakhazikika kwa angular ndi mayendedwe ozungulira kapena ozungulira pakati pa magawo olumikizidwa. Mosiyana ndi mayendedwe a mpira kapena odzigudubuza, amakhala ndi mawonekedwe ozungulira ozungulira (mphete yamkati) yomwe imamveka mkati mwa mphete yozungulira yofananira. Kapangidwe kameneka kamalola kuyenda m’njira zingapo nthawi imodzi.