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Nema 11 Stepper Motor Bipolar L=51mm w/ Gear Ratio 51:1 Planetary Gearbox

NO.:SKU:11HS20-0674S-PG51
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This Nema 11 stepper motor with 51mm body and 0.67A rated current, integrated a planetary gearbox of 50.9:1 gear ratio. It's a good solution to applications that with limited space but need low speed and/or high torque.

Electrical Specification

  • Manufacturer Part Number: 11HS20-0674S-PG51
  • Motor Type: Bipolar Stepper
  • Step Angle: 0.035 deg
  • Holding Torque without Gearbox: 12Ncm(16.99oz.in)
  • Rated Current/phase: 0.67A
  • Phase Resistance: 9.2ohms
  • Voltage: 6.2V
  • Inductance: 5.7mH ± 20%(1KHz)

Gearbox Specifications

  • Gearbox Type: Planetary
  • Gear Ratio: 50.9: 1
  • Gear Efficiency: 73%
  • Backlash at No-load: <=1 deg
  • Max.Permissible Torque: 4Nm(566oz.in)
  • Moment Permissible Torque: 6Nm(850oz.in)
  • Shaft Maximum Axial Load: 5N
  • Shaft Maximum Radial Load: 25N

Physical Specifications

  • Frame Size: 30 x 30mm
  • Motor Length: 50.5mm
  • Gearbox Length: 42.7mm
  • Shaft Diameter: Φ6mm
  • Shaft Length: 18mm
  • D-cut Length: 12mm
  • Number of Leads: 4
  • Lead Length: 500mm
  • Weight: 330g

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Gearbox Specification
Backlash at No-load(Max.°) 1
Efficiency 73%
Gear Ratio 51.89:1
Gearbox Length(mm) 42.7
Gearbox Type Planetary
Max. Permissible Torque(Ncm) 400
Max. Permissible Torque(oz.in) 566.4
Moment Permissible Torque(Ncm) 849.7
Shaft Maximum Axial Load(N) 5
Shaft Maximum Radial Load(N) 25
Motor Specification
Inductance(mH) 6.5
Lead Length(mm) 500
Motor Nema Size Nema 11
No. of Lead 4
Phase Resistance(ohm) 12
Rated Current (A) 0.67
Shaft Diameter(mm) 6
Shaft Length(mm) 18
Bipolar/Unipolar Bipolar
Holding Torque w/o Gearbox(Ncm) 14
Holding Torque w/o Gearbox(oz.in) 19.8
Motor Length(mm) 51
Single Shaft/Dual Shaft Single Shaft
Shaft Type D-Cut
Physical Specification
Weight(g) 450
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