ʻO ka lubrication grease ma ke ʻano laulā he kūpono ia no nā noi wikiwiki haʻahaʻa a waena kahi i emi ai ka mahana hana o ka bearing ma mua o ka palena o ka grease. ʻAʻohe grease bearing anti-friction i kūpono no nā noi āpau. Loaʻa i kēlā me kēia grease ka hana a me nā ʻano palena wale nō. Aia ka Grease i ka ʻaila kumu, ka thickener a me nā mea hoʻohui. Loaʻa pinepine i ka grease bearing ka ʻaila kumu petroleum i hoʻomānoanoa ʻia me kahi kopa metala. I nā makahiki i hala iho nei, ua hoʻohui ʻia nā thickener organic a me inorganic i nā ʻaila kumu synthetic. Hōʻuluʻulu ka Papa 26 i ka haku mele ʻana o nā grease maʻamau. Papa 26. Nā Mea Hoʻohui o ka Grease Base Oil Thickener Additive Grease Mineral Oil Synthetic Hydrocarbon Ester Substance Perfluorinated Oil Silicone Lithium, Aluminum, Barium, Calcium and Compound Soap Unscented (inorganic) particles Glue (clay), carbon black, silica gel, PTFE soap-free (organic) polyurea compound rust inhibitor dye tackifier metal passivator antioxidant anti-wear extreme pressure additive calcium-based and aluminum-based greases have good water resistance, Kūpono no nā noi ʻoihana e pono ai ke pale i ka komo ʻana o ka makū. He nui nā hoʻohana o nā ʻaila lithium a kūpono no nā noi ʻoihana a me nā bearings huila.
ʻO nā aila kumu synthetic, e like me nā esters, nā esters organik a me nā silicones, ke hoʻohana ʻia me nā thickeners a me nā mea hoʻohui i hoʻohana pinepine ʻia, ʻoi aku ka mahana hana kiʻekiʻe ma mua o ka mahana hana kiʻekiʻe o nā aila petroleum. Hiki i ka pae mahana hana o ka grease synthetic mai -73°C a i 288°C. Eia nā ʻano laulā o nā thickeners i hoʻohana pinepine ʻia me nā aila petroleum. Papa 27. Nā ʻano laulā o nā thickeners i hoʻohana ʻia me nā aila petroleum Nā Thickeners Maʻamau Dropping Point Ka Mahana Kiʻekiʻe Loa Ke Kūʻē Wai Me ka hoʻohana ʻana i nā thickeners ma ka Papa 27 me ka hydrocarbon synthetic a i ʻole nā aila ester, hiki ke hoʻokō ʻia ka mahana hana kiʻekiʻe Hoʻonui ma kahi o 10°C.
°C °F °C °F
Lithium 193 380 121 250 maikaʻi
Paʻakikī Lithium 260+ 500+ 149 300 maikaʻi
Kumu alumini hui pū ʻia 249 480 149 300 maikaʻi loa
ʻO ka calcium sulfonate 299 570 177 350 maikaʻi loa
Polyurea 260 500 149 300 Maikaʻi
ʻO ka hoʻohana ʻana i ka polyurea ma ke ʻano he mea hoʻomānoanoa kekahi o nā hoʻomohala koʻikoʻi loa i ke kahua lubricating no nā makahiki he 30 a ʻoi. Hōʻike ka ʻaila Polyurea i ka hana maikaʻi loa i nā ʻano hana bearing like ʻole, a i ka manawa pōkole, ua ʻike ʻia ʻo ia he pre-lubricant bearing pōpō. Haʻahaʻa ka mahana Ma lalo o nā kūlana mahana haʻahaʻa, he mea nui loa ka torque hoʻomaka o nā bearings lubricated grease. Hiki i kekahi grease ke hana maʻamau i ka wā e holo ana ka bearing, akā e hoʻoulu ia i ke kū'ē nui i ka hoʻomaka ʻana o ka bearing. I kekahi mau mīkini liʻiliʻi, ʻaʻole paha e hoʻomaka i ka wā e haʻahaʻa loa ai ka mahana. I loko o ia ʻano hana, pono e loaʻa i ka grease nā ʻano o ka hoʻomaka ʻana o ka mahana haʻahaʻa. Inā ākea ka laulā o ka mahana hana, loaʻa i ka grease synthetic nā pono maopopo. Hiki nō i ka grease ke hoʻolilo i ka torque hoʻomaka a me ka holo ʻana i mea liʻiliʻi loa i ka mahana haʻahaʻa o -73°C. I kekahi mau hihia, hana maikaʻi kēia mau grease ma mua o nā lubricants ma kēia ʻano. ʻO ka mea nui e pili ana i ka grease, ʻaʻole pono ka torque hoʻomaka he hana o ke kūlike o ka grease a i ʻole ka hana holoʻokoʻa. ʻOi aku ka like o ka torque hoʻomaka me ka hana o ka hana pilikino o kahi grease kikoʻī, a ua hoʻoholo ʻia e ka ʻike.
Mahana kiʻekiʻe: ʻO ka palena mahana kiʻekiʻe o nā ʻaila hou he hana piha ia o ke kūpaʻa wela a me ke kūpaʻa oxidation o ka ʻaila kumu a me ka pono o nā mea pale oxidation. Hoʻoholo ʻia ka pae mahana o ka ʻaila e ka wahi hāʻule o ka mea hoʻomānoanoa ʻaila a me ka haku mele ʻana o ka ʻaila kumu. Hōʻike ka Papa 28 i ka pae mahana o ka ʻaila ma lalo o nā kūlana ʻaila kumu like ʻole. Ma hope o nā makahiki o nā hoʻokolohua me nā bearings i hoʻoluʻu ʻia i ka ʻaila, hōʻike kāna mau ʻano hana empirical e hoʻemi ʻia ke ola ʻaila lubricating i ka hapalua no kēlā me kēia piʻi ʻana o ka mahana 10°C. No ka laʻana, inā he 2000 hola ke ola lawelawe o kahi ʻaila ma ka mahana o 90°C, i ka wā e piʻi ai ka mahana i 100°C, ua hoʻemi ʻia ke ola lawelawe i kahi o 1000 hola. I ka ʻaoʻao ʻē aʻe, ma hope o ka hoʻohaʻahaʻa ʻana i ka mahana i 80°C, manaʻo ʻia e hiki i ke ola lawelawe i 4000 hola.
Ka manawa hoʻouna: Iune-08-2020