Kinematics of Planetary Roller Screw Mechanism considering Helical Directions of Screw and Roller Threads

Table 2

Parameters of gear pair.

Parameter name	Symbol	Unit	Value
Module		mm	1
Tooth number of roller gear			13
Tooth number of ring gear			65
Pressure angle		°	20
Addendum coefficient			0.8
Clearance coefficient			0.3
Modification coefficients			0
Tooth width of roller gear		mm	10
Tooth width of ring gear		mm	10