Marking on ball spline nut
 
M5×16 
Recommended clamping 
torque: 8.8 N
·m 
 
M6×20 
Recommended clamping 
torque: 17 N
·m 
 
 
 
 
 
 
 
 
 
 
 
 
  4)  Mount the axis 4 timing belt and axis 4 motor, then adjust the belt tension. 
  5)  Mount the ball screw nut integrated with the shaft onto the nut flange, then pass 
them through the ball spline nut.    At this time, align the phases of both 
markings put on the tip of the ball spline nut and the shaft. 
  6)  Secure the nut flange to the arm 2 with the four (4) bolts (M5 × 16). 
At first, tighten the bolts temporarily.    Move the shaft up and down by hand and 
make sure that it moves smoothly, then tighten the bolts completely. 
  7)  Mount the axis 3 nut pulley with the four (4) bolts (M6 × 20). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Low head bolt M5×16 
Recommended clamping 
torque: 5.7 N·
 
 
M5×10 
Recommended clamping 
torque: 8.8 N
·m 
 
STE 85306 
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