thumbnail
thumbnail

NC-2581(Neodymium magnet)

Motor specifications

Item Unit Model
NC-258101 NC-258102
Rated voltage V 12 24
Rated output W 22.5 22.5
Rated torque mNm 49.0 49.0
gf-cm 500 500
oz-in 6.95 6.95
Rated Speed rpm 4500 4500
Rated current mA 2500 1200
No Load Speed rpm 5360 5360
No Load current mA 100 50
Starting torque mNm 302.8 296.9
gf-cm 3090 3030
oz-in 42.95 42.12
Starting current A 14.3 7.0
Rotor inertia g-cm2 21.8 21.8
Armature resistance Ω 0.84 3.42
Inductance mH 0.13 0.52
Mechanical time constant m-sec 4.0 4.0
Back EMF constant V/103rpm 2.23 4.48
Torque constant mNm/A 21.3 42.7
gf-cm/A 217.6 436.0
oz-in/A 3.02 6.05
Maximum output W 41.4 40.6
Initial angular acceleration rad/sec2 140.3×103 140.3×103
Thermal resistance (case-ambient) ℃/W 10.3 10.3
Winding insulation class F
Maximum armature winding temperature rise 155
Operating ambient temperature -10 ~ +50
Number of commutator segments 11
Bearing type Ball bearings
Brush materials Silver/Carbon
Weight g 209 209
Length (L) mm 81.2 81.2
Length(Depth) mm 6.0 6.0

Tachometer generator included

Item Unit Tachometer Generator’s Specification
Output voltage V/1000rpm 1.0±15%
Linearity % max 0.3
Ripple P-P value (test circuit) % max 5
Ripple frequency Cycle/Rev 11
Directional error % max 0.5
Armature resistance Ω 27
Inductance mH 0.4
Rotor inertia g-cm2 10
Output voltage of temperature coefficient %/℃ -0.04
Weight (motor + tachometer generator) g 260
Length (L) L1 mm 82.2
L2 mm 110.4

Optical encoder included

Encoder type Incremental Type
Item Unit Encoder’s Specification
Encoder type Incremental
Output pulse number Pulse/Rev 1000、2000
Number of channels 3
Power source voltage Vcc 5±5%
Current Consumption mA 80 (max.)
Output voltage V “ H ” | 4.0 (min.)
“ L” | 0.5 (max.)
Output waveform Short waveform
Response frequency kHz 200(Note 1)
Rotor inertia g-cm2 0.8
Weight (motor + encoder) g 260
Length (L) L1 mm 81.2
L2 mm 101.0
  • Note 1The motor speed is limited by the response frequency.

ZFP gear included

●Rated characteristics for motor with gears included
NC-2581##G ZFP 1/xxx (φ38)

Reduction ratio 5.43 20.73 29.47 79.24 112.52
Rated torque N・m 0.23 0.82 1.16 2.83 4.02
Rated Speed rpm 637 168 118 43 30
Rated output w 16 14.5 14.5 13.0 13.0
Length (L) mm 35.2 42.1 42.1 53.4 53.4
Reduction ratio 160 302.15 ※429.62 ※610.82 ※868.44
Rated torque N・m 5.72 9.77 10.00 10.00 10.00
Rated Speed rpm 21 11 10 7 5
Rated output w 13.0 12.0 10.9 7.7 5.4
Length (L) mm 53.4 64.7 64.7 64.7 64.7
  • Note 1If using deceleration ratios marked with an asterisk (*), please make sure you do not exceed the allowable output torque for the gearhead.
  • Note 2Values assume continual operation under an evenly distributed load.
Page Top