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2 Motor Specifications

2.2 PN Series

2.2.1 Reference Number Coding of Motor

2.2.2 Specifications

Reference number M-PN2012KN201 M-PN3045KN001 M-PN4135KN001 M-PN4180KN001

Functional item (Note 1)

Motor outer diameter [mm] φ170 φ210 φ280

Maximum output torque [N·m] 12 45 135 180

Rated output torque [N·m] 2 15 45 60

Motor height [mm] 35 85 95 112

Motor hollow diameter [mm] φ36 φ56 φ50

Maximum rotational speed [s–1] 2 3

Rated rotational speed [s–1] 1

Resolution of position sensor [count/revolution] 2 621 440

Absolute positioning accuracy [arc-sec] 90 (Interchangeable type) (at ambient temperature of 25 ± 5 [°C])

Repeatability [arc-sec] ±2

Allowable axial load [N]＊1 1 000 4 500 9 500

Allowable radial load [N]＊2 300 4 500 9 500

Allowable moment load [N·m] 20 80 160 200

Rotor inertia [kg·m2] 0.0024 0.011 0.057 0.065

Allowable range of inertia [kg·m2] 0.02 to 0.24 0.11 to 0.77 0.57 to 3.99 0.65 to 4.55

Mass [kg] 3.7 13 26 31
Environmental conditions
Ambient temperature 0 to 40 [°C]; humidity: 20 to 80%; use indoors,
free from dust, condensation and corrosive gas. IP30 or equivalent.

· Please consult with NSK in case of a simultaneous application of axial load, radial load and moment load to a Motor.
· ＊1 Under no radial load ＊2 Under no axial load
· For an oscillating operation less than 45 [°], turn the Motor 90 [°] or more at least once a day.
· Note 1: Cable length for PN2012 is up to 8 [m].
· C onditions outside the allowable range of inertia (about 700 times the rotor’s inertia) may be applicable, depending on operating conditions. Contact NSK for details.

2.2.3 Rotational Speed and Output Torque Characteristics

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