过去曾一度被限于轻载条件下使用的塑料轴承,如今使用范围正在扩大,已可以在重载情况下及其他多种场合中应用。 许多工程技术人员将塑料轴承的应用仅限于不允许以油作为润滑剂的场合。然而,那些由青铜或粉末冶金材料制成的,甚至由聚四氟乙烯(作衬里,再由钢背加固)制成的小内径、带凸缘的推力轴承正在日益被工程塑料制成的轴承所替代。 当前所使用的塑料轴承的内径尺寸正在 Plastic bearings, which were once limited to light-load conditions, are now being expanded in use and are now ready for heavy-duty applications and many other applications. Many engineers and technicians use plastic bearings only for applications where oil is not permitted as a lubricant. However, those small-bore, flanged thrust bearings made of bronze or powder metallurgy, even made of PTFE (backed up and reinforced by steel back), are increasingly being made of engineering plastic bearings Replaced. Currently used plastic bearings are the diameter size is