... characteristics, 5. 79 5. 83operation, 5. 83 5. 99overview, 5. 1performance, 5. 51permanent-magnet (PM) step motors, 5. 48 5. 50, 5. 68 5. 74sizing, 5. 51 5. 52variable-reluctance (VR) step motors, 5. 47 5. 48, 5. 52 5. 67Stiffness, ... step motors, 5. 64 5. 65, 5. 64 5. 67, 5. 73 5. 74, 5. 76 5. 77, 5. 80 5. 81, 5. 80 5. 82, 5. 82and switched-reluctance motors, 5. 100 5. 102and universal motors, 4.128–4.130Torque ripple test, 9.13–9. 15 Toshiba, ... Inc.),10. 35 10.37, 10.42–10.48Inertia, armature, 4.60–4.61, 4.106Inertia, rotor:in BLDC motors, 5. 20 5. 22in step motors, 5. 52 5. 55, 5. 68 5. 69, 5. 74 5. 76, 5. 81Inner-rotor motors, 5. 8 5. 9, 5. 12 5. 22Input...