Chassis track roller with asymmetric shell with oil groove and roller shaft of chassis track roller

A track roller (30) for a chassis system (14) includes a roller shell (32) having a first inner surface (56) forming a larger diameter shaft bore (58) and a second inner surface (60) forming a smaller diameter shaft bore (62) disposed coaxially with the larger diameter shaft bore (58). A roller shaft (54) having a first shaft end (64) and a second shaft end (66) supports the roller shell (32) for rotation, and has an oil reservoir (152) formed therein. A first sleeve bearing (70) and a second sleeve bearing (72) are positioned on the roller shaft (54), and an axially extending oil gallery (78) is formed by a second inner surface (60) of the roller shell (32) forming the smaller diameter shaft bore (62) and an outer bearing surface (76) of the second sleeve bearing (72). An oil reservoir (152) in the roller shaft (54) is limited over its extent to a second shaft end (66) of the roller shaft (54). 一种用于底盘系统(14)的履带滚轮(30)包括滚轮壳(32)，滚轮壳具有形成较大直径轴孔(58)的第一内表面(56)和形成与较大直径轴孔(58)同轴布置的较小直径轴孔(62)的第二内表面(60)。具有第一轴端(64)和第二轴端(6