Sila Ailahe hua'ōlelo maʻamau no nā sila maʻamau, e pili ana i ka silaʻana o kaʻaila lubricating.He mea mīkini ia i hoʻohana ʻia e sila ai i ka momona (ʻo ka ʻaila ka mea wai maʻamau maʻamau i ka ʻōnaehana hoʻouna, i kapa ʻia hoʻi he mea wai maʻamau).Hoʻokaʻawale ia i nā ʻāpana e pono ai ka lubrication i nā ʻāpana hoʻoili mai nā mea hoʻopuka, i ʻole e hoʻokuʻu i ka ʻaila lubricating.ʻO nā sila i hoʻohana ʻia no nā sila static a me ka ikaika (ʻo ia ka mea maʻamau i ka motion reciprocating) i kapa ʻia ʻo nā sila ʻaila.ʻO ke ʻano hōʻailona o ke sila aila ʻo TC aila sila, ʻo ia ka sila ʻaila lehelehe pālua me ka pūnāwai paʻa ponoʻī a uhi piha ʻia e ka lāʻau.ʻO ka ʻōlelo maʻamau, pili pinepine ka sila aila i kēia ʻano o TC Oil Seal.ʻO ke ʻano hōʻailona o ke sila aila ʻo TC aila sila, ʻo ia ka sila ʻaila lehelehe pālua me ka pūnāwai paʻa ponoʻī a uhi piha ʻia e ka lāʻau.ʻO ka ʻōlelo maʻamau, pili pinepine ka sila ʻaila i kēia ʻano o TC skeleton oil seal, a ua hōʻike ʻia ke kiʻikuhi schematic o ka sila aila iwi i ke kiʻi.