Products

42M048C Can Stack Stepper Mini Motor

42M048C - 42M048C Can Stack Stepper Mini Motor

42M048C

The 42M048C provides up to 11.9 oz-in (83.8 mNm) of holding torque. The 48 steps per revolution results in a 7.5 degree step which increases the positional resolution. It is available in 5 or 12 volt windings, and in unipolar or bipolar designs.

Motor Highlights

  • Excellent open loop control - no encoder necessary

  • Digitally controlled - easy to use with a micro processor

  • Cost effective - compact design, lower integration cost

  • Maintenance free - no brushes that can wear out

  • Available with both unipolar and bipolar winding

Customization Available

  • Coil modifications - adjust resistance and inductance
  • Custom shafts - flats , knurling, diameter, length
  • Pinions and gears
  • Special mounting flanges
  • Wiring - connectors, lead length, shrink tubing
  • Ball bearings, clutch magnets, dampers
  • Magnets - to yield higher torque or reduced detent levels

Applications

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Specification + Detail
Resources
Metric English 
Winding{%|%}unit 42M048C1B 42M048C1U 42M048C2B 42M048C2U
Diameter{%|%}in 1.65 1.65 1.65 1.65
Diameter{%|%}mm 42 42 42 42
Length{%|%}mm
Length{%|%}in
Operating Voltage{%|%}V 5.00 5.00 12.00 12.00
Resistance per Phase, ± 10%{%|%}Ohms 9.1 9.1 52.4 52.4
Inductance per Phase, typ{%|%}mH 16.7 8.1 85.7 51.7
Rated Current per Phase, 1 Phase ON{%|%}A 0.55 0.55 0.23 0.23
Holding Torque, Min{%|%}mNm 83.8 66.2 83.8 66.2
Holding Torque, Min{%|%}oz-in 11.9 9.4 11.9 9.4
Detent Torque, Max{%|%}mNm 12.7 12.7 12.7 12.7
Detent Torque, Max{%|%}oz-in 1.8 1.8 1.8 1.8
Rotor Inertia{%|%}gcm² 12.50 12.50 12.50 12.50
Rotor Inertia{%|%}oz-in² 0.068 0.068 0.068 0.068
Nominal Voltage (Volt)
Optimization (rpm)
No-Load Speed (rpm)
No-Load Current (mA)
Max continuous mechanical power (@ 25°C)
Max continuous Current (A)
Max Continuous Torque (mNm)
Max Continuous Torque (oz-in)
Terminal Resistance (W)
Output Power (W)
Stall Torque (oz-in)
Stall Torque (mNm)
Efficiency (%)
Speeds up to (rpm)
Torque up to (oz-in)
Torque up to (mNm)
Current up to (thermal limits)
Back-EMF Constant (V/1000 rpm)
Torque Constant (mNm/A)
Torque Constant (oz-in/A)
Motor Regulation R/k² (10³/Nms)
Motor regulation k/R½ (mNm/W)
Motor regulation k/R½ (oz-in/W)
Internal resistance - phase to phase (W)
Line to Line resistance at connectors (Ω)
Inductance - phase to phase (mH)
Friction Torque (onz-in)
Friction Torque (mNm)
Rotor Inductance (mH)
Mechanical Time Constant (ms)
Thermal Resistance (C/W)
Thermal Time Constant (C/W)
Absolute accuracy 2 ph. On, Full step mode{%|%}degree +/- .5 +/- .5 +/- .5 +/- .5
Steps per Revolution 48 48 48 48
Ambient Temperature Range (operating){%|%}°C
Ambient Temperature Range (operating){%|%}°F
Rotor Operating Temperature Range (C)
Rotor Operating Temperature Range (F)
Ambient working temperature range{%|%}C -20 to +70 -20 to +70 -20 to +70 -20 to +70
Ambient working temperature range{%|%}F -4 to +158 -4 to +158 -4 to +158 -4 to +158
Maximum Coil Temperature{%|%}°C 130 130 130 130
Maximum Coil Temperature{%|%}°F 266 266 266 266
Bearing Type Sintered Bronze Sleeve Sintered Bronze Sleeve Sintered Bronze Sleeve Sintered Bronze Sleeve
Insulation Resistance at 500 VDC{%|%}Mohms 100 100 100 100
Dielectric Withstanding Voltage{%|%}VAC 650 for 2 seconds 650 for 2 seconds 650 for 2 seconds 650 for 2 seconds
Weight{%|%}g 145.0 145.0 145.0 145.0
Weight{%|%}oz 5.1 5.1 5.1 5.1
Leadwire AWG 26, UL 1430 AWG 26, UL 1430 AWG 26, UL 1430 AWG 26, UL 1430
Electrical time constant (ms)
Max motor speed (rpm)
Ambient storage temperature range (C)
Ambient storage temperature range (F)
Ball bearings preload (N)
Axial static force without shaft support (N)
Max winding temperature (C)
Max Winding Temperature (C)
Max Winding Temperature (F)
Max winding temperature (F)
Hall Sensor Elecrical Phasing (degree)
Typical Housing Material
Continuous Stall Current (A)
Peak Torque for 1s (mNm)
Peak Torque for 1s (oz-in)
Peak Current (A)
Max Axial Shaft Load (N)
Max Axial Shaft Load (oz)
Max Radial Shaft Load (N)
Max Radial Shaft Load (oz)
Shaft Load Max Axial (lb)
Shaft Load Max Axial (N)
Shaft Load Max Radial (lb)
Shaft Load Max Radial (N)
Back EMF Amplitude (V/ksteps/s)
Nominal Phase Current (1 ph. On) (A)
Nominal Phase Current (2 ph. On) (A)
Angular Acceleration (nominal current)
Axial Shaft Play (µm)
Holding Torque Typical (mNm)
Holding Torque Typical (oz-in)
Holding Torque, 1.5x nominal current (mNm)
Holding Torque, 1.5x nominal current (oz-in)
Natural Resonance Frequency @nominal current (Hz)
Power rate (nominal current) (kW/s)
Radial Shaft Play (µm)
Max. Force* @ .001" (0.0254 mm) / Step (N)
Max. Force* @ .001" (0.0254 mm) / Step (oz)
Max. Force* @ .002" (0.0508 mm) / Step (N)
Max. Force* @ .002" (0.0508 mm) / Step (oz)
Max. Force* @ .004"(0.1016 mm) / Step (N)
Max. Force* @ .004"(0.1016 mm) / Step (oz)
Stroke Length, Typ{%|%}mm
Stroke Length, Typ{%|%}in
Min. Holding Force (Unenergized) @ .0005" (0.0127 mm) / Step{%|%}N
Min. Holding Force (Unenergized) @ .0005" (0.0127 mm) / Step{%|%}oz
Min. Holding Force @ 0.001" (0.0254 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.001" (0.0254 mm) / Step (Un-energised) (oz)
Min. Holding Force @ 0.002" (0.0508 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.002" (0.0508 mm) / Step (Un-energised) (oz)
Min. Holding Force (Unenergized) @ 0.003" (0.0762 mm) / Step (Un-energized){%|%}N
Min. Holding Force (Unenergized) @ 0.003" (0.0762 mm) / Step (Un-energized){%|%}oz
Min. Holding Force @ 0.004" (0.1016 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.004" (0.1016 mm) / Step (Un-energised) (oz)
Min. Holding Force @ rated current @ .0005" (0.0127 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .0005" (0.0127 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .001" (0.0254 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .001" (0.0254 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .002" (0.058 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .002" (0.058 mm) / Step{%|%)oz
Min. Holding Force @ rated current @ .003" (0.0762 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .003" (0.0762 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .004" (0.1016 mm) / Step(%|%)N
Min. Holding Force @ rated current @ .004" (0.1016 mm) / Step{%|%)oz
Number of lines available
Output signal
Supply Current - maxium (mA)
Supply Current - stand-by (μA)
Supply Current - typical (mA)
Supply Voltage (V)
Direction of rotation ( = / ≠)
Max. Recommended Input Speed (rpm)
Number of gear stages
Number of lines available
Type of encoder
Linear Travel Accuracy 7.5 7.5 7.5 7.5
Input Power (W)
Stepper Type Bipolar Unipolar Bipolar Unipolar
Document Technology Document Type Language File Type
42M048C drawing Can Stack Stepper DXF Drawing  
42M048C Specification Sheet Can Stack Stepper Specification Page  
42M048C 3D Drawing Can Stack Stepper 3D  
Can Stack Speed vs. Torque Curves specifications Can Stack Stepper Specification Page  
Miniature Motors for Automated Solutions (brochure) Literature