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Table 1 Main structural parameters of components

From: Design and Dynamic Analysis of the Recirculating Planetary Roller Screw Mechanism

Parameter Screw Roller Nut
Major diameter(mm) 32.68 8.18 47.80
Pitch diameter(mm) 32 7.5 47
Minor diameter(mm) 31.20 6.70 46.32
Number of heads 1 1
Rotation Right-handed Right-handed
Number 1 12 1
Thread angle(°) 60 60 60
Helix angle(°) 0.57 0.39
Pitch(mm) 1 1
Groove spacing(mm) 1
Thread length(mm) 100 40.08