Rotation speed reduction device has housing which is provided with centering collar bonding surface in which front stage side component and behind stage side component are fitted centrally to each other

摘要

The rotation speed reduction device (10) has housing which is provided with centering collar bonding surface in which a front stage side component (17A) and a behind stage side component (17B) are fitted centrally. The front stage side component and behind stage side component are fitted to each other in the centering collar bonding surface. The front stage side component and behind stage side component are externally fitted on an outer ring (40A) of a bearing (40) in a rotational speed reduction mechanism (11) to form a larger gap.