ʻO nā Hale Plummer Block he mau hale bearing māhelehele no ke kau ʻana i nā bearings pōpō hoʻonohonoho ponoʻī a i ʻole nā bearings wili spherical. Hoʻokomo pinepine ʻia nā Plummer Block i nā wahi maʻemaʻe a ua manaʻo ʻia no nā ukana liʻiliʻi o ka ʻoihana maʻamau. ʻO nā hale bearing he ʻano māhelehele a i ʻole ke ʻano unsplit. ʻO nā hale ʻano māhelehele he mau hale ʻelua ʻāpana kahi e hiki ai ke wehe ʻia ke poʻi a me ke kumu.
