Track roller

摘要

The present invention relates to a track roller having inner and outer races of a large radial wall thickness, in which an insert hole close to a raceway passage and a rolling element feed hole crossing the insert hole and joined to the raceway passage are formed, whereby the loading of the rolling elements into the raceway passage can be done simply and speedily. In order to load balls which constitute the rolling elements into the raceway passage formed between a raceway groove of the outer race and that of the inner race, the inner race is provided in the portion thereof which is close to the raceway passage with the axially extending insert hole and the rolling element feed hole of a small length extending from an inner surface of the insert hole to the raceway groove of the inner race. The balls are loaded from the insert hole into the raceway grooves via the rolling element feed hole, and a plug is then fitted in the rolling element feed hole. A pin is then inserted through a first pin hole of the inner race and a second pin hole of the plug, whereby the plug is fixed to the inner race.