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2 Specification
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2.3.4 Frame Size 42 mm
Model Ai-M-42SA- □ Ai-M-42MA- □ Ai-M-42LA- □
Max. stop torque
※ 1
2.55 kgf·cm (0.25 N·m) 4.08 kgf·cm (0.4 N·m) 4.89 kgf·cm (0.48 N·m)
Rotor moment of inertia 35 g·cm
2
(35 ⅹ 10
-7
kg·m
2
) 54 g·cm
2
(54 ⅹ 10
-7
kg·m
2
) 77 g·cm
2
(77 ⅹ 10
-7
kg·m
2
)
Rated current 1.7 A/Phase
Resistance 1.7 Ω /Phase ± 10% 1.85 Ω /Phase ± 10% 2.1 Ω /Phase ± 10%
Inductance 1.9 mH/Phase ± 20% 3.5 mH/Phase ± 20% 4.4 mH/Phase ± 20%
Weight
※ 2
Standard
type
Approx. 0.45 kg
(approx. 0.34 kg)
Approx. 0.52 kg
(approx. 0.41 kg)
Approx. 0.59 kg
(approx. 0.48 kg)
Built-in
brake type
Approx. 0.77 kg
(approx. 0.67 kg)
Approx. 0.83 kg
(approx. 0.73 kg)
Approx. 0.90 kg
(approx. 0.80 kg)
2.3.5 Frame Size 56 mm
Model Ai-M-56SA- □ Ai-M-56MA- □ Ai-M-56LA- □
Max. stop torque
※ 1
6.12 kgf·cm (0.6 N·m) 12.24 kgf·cm (1.2 N·m) 20.39 kgf·cm (2.0 N·m)
Rotor moment of inertia 140 g·cm
2
(140 ⅹ 10
-7
kg·m
2
) 280 g·cm
2
(280 ⅹ 10
-7
kg·m
2
) 480 g·cm
2
(480 ⅹ 10
-7
kg·m
2
)
Rated current 3.5 A/Phase
Resistance 0.55 Ω /Phase ± 10% 0.57 Ω /Phase ± 10% 0.93 Ω /Phase ± 10%
Inductance 1.05 mH/Phase ± 20% 1.8 mH/Phase ± 20% 3.7 mH/Phase ± 20%
Weight
※ 2
Standard
type
Approx. 0.76 kg
(approx. 0.62 kg)
Approx. 0.99 kg
(approx. 0.85 kg)
Approx. 1.36 kg
(approx. 1.22 kg)
Built-in
brake type
Approx. 1.30 kg
(approx. 1.15 kg)
Approx. 1.52 kg
(approx. 1.38 kg)
Approx. 1.90 kg
(approx. 1.75 kg)
2.3.6 Frame Size 60 mm
Model Ai-M-60SA- □ Ai-M-60MA- □ Ai-M-60LA- □
Max. stop torque
※ 1
11.22 kgf·cm (1.1 N·m) 22.43 kgf·cm (2.2 N·m) 29.57 kgf·cm (2.9 N·m)
Rotor moment of inertia 240 g·cm
2
(240 ⅹ 10
-7
kg·m
2
) 490 g·cm
2
(490 ⅹ 10
-7
kg·m
2
) 690 g·cm
2
(690 ⅹ 10
-7
kg·m
2
)
Rated current 3.5 A/Phase
Resistance 1.0 Ω /Phase ± 10% 1.23 Ω /Phase ± 10% 1.3 Ω /Phase ± 10%
Inductance 1.5 mH/Phase ± 20% 2.6 mH/Phase ± 20% 3.8 mH/Phase ± 20%
Weight
※ 2
Standard
type
Approx. 0.89kg
(approx. 0.75kg)
Approx. 1.27kg
(approx. 1.13kg)
Approx. 1.58kg
(approx. 1.44kg)
Built-in
brake type
Approx. 1.53kg
(approx. 1.36kg)
Approx. 1.90kg
(approx. 1.74kg)
Approx. 2.23kg
(approx. 2.07kg)
※ 1: Max. holding torque is standard torque when supplying the rated current
(2-phase holding) and stopping the motor for comparing the specifications of motors.
※ 2: The weight includes packaging. The weight in parenthesis is for unit only.