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本文主要研究两种聚合物基(聚酰亚胺/MoS_2和PTFE/玻纤/MoS_2)制成滚动轴承自润滑保持架的性能。PTFE基保持架的磨损率低于聚酰亚胺基保持架,但是后者可在较高的温度(可达360℃)下运行,并在较低的转速下具有较高的承载能力。保持架材料通常是玻纤和MoS_2,增强的PTFE或具有各种填料的聚酰亚胺,Boes和Bowen试验了轴承孔径为20mm的PTFE基保持架,其寿命可达4×10~9转。Vest试验了较小的轴承(孔径<3mm)中应用的PTFE基保持架,载荷为0.5N(牛顿),寿命为10~9转。Boes还研究了WS_2、MoS_2和改良的PTFE基保持架,轴承孔径为20mm_2在300℃下寿命为10~7转。轴承保持架材料的选择
In this paper, we mainly study the performance of two kinds of polymer base (polyimide / MoS_2 and PTFE / glass fiber / MoS_2) made of self-lubricating rolling bearing cage. The PTFE-based cage has a lower wear rate than the polyimide-based cage, but the latter operates at higher temperatures (up to 360 ° C) and has higher load-bearing capacity at lower rotational speeds. Cage materials are typically glass fiber and MoS 2, reinforced PTFE or polyimide with various fillers. Boes and Bowen tested PTFE-based cages with 20 mm bearing bore diameters for a life of 4 × 10-9 turn. Vest tested a PTFE-based cage for smaller bearings (<3 mm bore) with a load of 0.5 N (Newton) and a life of 10 to 9 revolutions. Boes also studied WS_2, MoS_2 and a modified PTFE-based cage with a bearing bore of 20 mm 2 and a lifetime of 10 to 7 revolutions at 300 ° C. Bearing cage material selection