초록 ▼

A roller assembly for an undercarriage of a work machine has a roller rim having central passage defined therein. The roller assembly also has a roller shaft positioned in the central passage of the roller rim. Moreover, the roller assembly has a retainer secured to the roller rim so as to retain th

A roller assembly for an undercarriage of a work machine has a roller rim having central passage defined therein. The roller assembly also has a roller shaft positioned in the central passage of the roller rim. Moreover, the roller assembly has a retainer secured to the roller rim so as to retain the roller shaft in the central passage. The retainer is prepared by a process including the steps of (i) arranging a first type of metal powder in a first predetermined location, (ii) arranging a second type of metal powder in a second predetermined location, the second type of metal powder being different than the first type of metal powder, and (iii) sintering both the first type of metal powder and the second type of metal powder. A method of manufacturing a roller assembly of an undercarriage assembly is also disclosed.

대표청구항 ▼

1. A roller assembly for an undercarriage of a work machine, the roller assembly comprising:a roller rim having central passage defined therein; a roller shaft positioned in said central passage of said roller rim; and a laminated retainer secured to said roller rim so as to retain said roller shaft

1. A roller assembly for an undercarriage of a work machine, the roller assembly comprising:a roller rim having central passage defined therein; a roller shaft positioned in said central passage of said roller rim; and a laminated retainer secured to said roller rim so as to retain said roller shaft in said central passage, said retainer being prepared by a process including the steps of (i) arranging a layer of first metal powder in a first predetermined location, (ii) arranging a layer of second metal powder in a second predetermined location, said layer of second metal powder being different than said layer of first metal powder, and (iii) sintering both said layer of first metal powder and said layer of second metal powder.