Patent ID: 9421986
Filing Date: 2016-08-23
CPC Classification: B61F

Claim Text:
1. A railroad car constant contact side bearing assembly plastic cap having a longitudinal axis, with said cap being biased into position by a spring, with said plastic cap comprising: a generally flat top surface with wall structure formed integral with and depending from said generally flat top surface; and a metallic insert having a generally centralized downwardly projecting portion, with said insert being maintained in operable association with the generally flat surface on said plastic cap to slidably contact with an underside of a railcar whereby permitting said cap to establish a coefficient of friction ranging between about 0.4 and about 0.9 with the railcar, and wherein said spring is at least partially accommodated in said cap below an upper surface of said insert and laterally between said wall structure and the downwardly projecting portion of said insert.