Friction Torque Analysis of Planetary Roller Screw Mechanism in Roller Jamming

Table 1

Example parameters of roller screw mechanism (screw diameter of 27 mm).

Parameters	dn	dm	p	β	ns	τ	Energy loss coefficient
Values	9 mm	45 mm	1 mm	3.8°	5	30	0.008
Parameters	α	N	F	fm	fk	Ers	μ
Values	45°	10	5800 N	0.75	43 N^2/3/mm	210 GPa	0.27