| 摘要 |
A circle drive assembly (65B) for a motor grader (100) has a worm (120), a worm wheel (130), and a shaft (140). The worm wheel (130) has an inner circumference section (131), an outer circumference section (132) that encircles the outside of the inner circumference section (131), and a plurality of first clutch disks (133) that are joined with splines to the inner circumferential face of the inner circumference section (131). The inner circumference section (131) is formed with a material that is harder than the outer circumference section (132). |
