Installation: Joint #2 Reduction Gear Unit - Epson C Series Maintenance Manual

6-axis robots

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Installation: Joint #2 Reduction gear unit

When tightening hexagon socket head cap bolts, refer to the 2.4 Tightening Hexagon Socket

Head Cap Bolts.

1. Unpack the new reduction gear unit package and check if it

contains the parts on the right.

Tooth grooves of the circular spline and the flexspline, and

the bearing of the wave generator are pre-greased.

Wipe grease if it is attached to the fitting parts.

■ Do not adjust the bolts securing the flexspline and the cross roller bearing. If the

bolts are adjusted, it requires centering of the parts by the reduction gear unit

manufacturer.

2. Set the O-rings to the grooves on both faces of the circular

Make sure to fit the rings completely.

3. Set the flexspline with the convex surface facing down.

After setting it, make sure to confirm that the surfaces of the

circular spline and flexspline are matched.

4. Match the screw holes on the cross roller bearing's inner ring

and the drilled holes on the circular spline.

C Series Maintenance Manual Rev.2

Concave surface

Convex surface

C4 Maintenance 6. Joint #2

+Cross roller bearing unit

Circular spline

Wave generator

Concave surface

Convex surface