Products

R16 Mini Motor Gearhead

R16 - R16 Mini Motor Gearhead

R16

Our R16 is a full metallic gearhead designed with a planetary arrangement for applications requiring high torque in a relatively smaller package. Due to its lower backlash feature, it is ideally suited for precision motion requirements in various applications. Along with the planetary geartrain benefits, its unique bearing system provides good strength for applications that have higher radial loads. Customized shaft lengths, special lubricants, and mounting flanges are all available for the R16 mini motor gearhead.

Motor Highlights

  • For additional ratios, please download the specification pdf from the resources tab below

  • High-precision performance at a competitive price point

  • Reduction ratio of 5.5:1 to 915:1

  • Rated torque 0.3 Nm

  • Compact design

  • Customization as per application needs

  • Sleeve and ball bearings options available

Customization Available

  • Shaft Lengths
  • Mounting flanges
  • Special lubricants
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    Specification + Detail
    Resources
    Metric English 
    Winding{%|%}unit R16-121 R16-166 R16-22 R16-30.2 R16-352 R16-484 R16-5.5 R16-665.5 R16-88 R16-915
    Diameter{%|%}in 0.63 0.63 0.63 0.63 0.63 0.63 0.63 0.63 0.63 0.63
    Diameter{%|%}mm 16 16 16 16 16 16 16 16 16 16
    Nominal Voltage{%|%}V
    Optimization (rpm)
    No-Load Speed{%|%}rpm
    Type
    Resolution{%|%}line counts
    Supply Voltage{%|%}V
    Supply Current - typical{%|%}mA
    Supply Current - maxium{%|%}mA
    Supply Current - stand-by{%|%}μA
    Rise time{%|%}ns
    Fall time{%|%}ns
    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{%|%}Ω
    Output Power{%|%}W
    Stall Torque{%|%}oz-in
    Stall Torque{%|%}mNm
    Efficiency{%|%}% 65 65 75 75 55 55 85 55 65 55
    Speeds up to{%|%}rpm
    Torque up to{%|%}oz-in
    Torque up to{%|%}mNm
    Current up to, thermal limits{%|%}Amp
    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{%|%}oz-in
    Friction Torque{%|%}mNm
    Rotor Inductance{%|%}µH
    Mechanical Time Constant{%|%}ms
    Rotor Inertia{%|%}gcm²
    Rotor Inertia{%|%}gcm²
    Thermal Resistance{%|%}C/W
    Thermal Time Constant{%|%}C/W
    Weight{%|%}oz 0.56 0.56 0.46 0.46 0.67 0.67 0.35 0.67 0.56 0.67
    Weight{%|%}g 16.0 16.0 13.0 13.0 19.0 19.0 10.0 19.0 16.0 19.0
    Absolute accuracy 2 ph. On, Full step mode (degree)
    Ambient working temperature range (C)
    Ambient working temperature range (F)
    Bearing Type
    Detent Torque, Max (mNm)
    Detent Torque, Max (oz-in)
    Dielectric Withstanding Voltage (VAC)
    Holding Torque, MIN (mNm)
    Holding Torque, MIN (oz-in)
    Inductance per Phase, typ (mH)
    Insulation Resistance at 500 VDC (Mohms)
    Leadwire
    Maximum Coil Temperature (C)
    Maximum Coil Temperature (F)
    Operating Voltage (VDC)
    Rated Current per Phase, 1 Phase ON (A)
    Resistance per Phase, ± 10% (Ohms)
    Rotor Inertia (oz-in-sec²10{%SUP%}-6{%/SUP%})
    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)
    Length (in) 0.95 0.95 0.79 0.79 1.11 1.11 0.63 1.11 0.95 1.11
    Length (mm) 24.20 24.20 20.10 20.10 28.30 28.30 16.00 28.30 24.20 28.30
    Steps per Revolution
    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
    Output signal{%|%}MHz
    Direction of rotation ( = / ≠) = = = = = = = = = =
    Max. Recommended Input Speed (rpm) 7 500 7 500 7 500 7 500 7 500 7 500 7 500 7 500 7 500 7 500
    Number of gear stages 3 3 2 2 4 4 1 4 3 4
    Electrical phase shift{%|%}degree
    Duty cycle{%|%}%
    Maximum count frequency{%|%}kHz
    Maximum speed @ 512 ppr{%|%}10{%SUP%}-7{%/SUP%} x kgm²
    Maximum speed @ 1024 ppr{%|%}10{%SUP%}-7{%/SUP%} x kgm²
    Operating Temperature Range: Rotor{%|%}°C
    Operating Temperature Range: Motor{%|%}°C -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85
    Operating Temperature Range: Motor{%|%}°F -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185
    Operating Temperature Range: Rotor{%|%}°F
    Code wheel moment of inertia{%|%}10{%SUP%}-7{%/SUP%} x kgm²
    Linear Travel Accuracy
    Input Power (W)
    Input Power (W)
    Stepper Type
    Document Technology Document Type Language File Type
    R16 Specification Sheet Gearhead Specification Page  
    R16 drawing Gearhead DXF Drawing  
    r16_0_88 3D drawing Gearhead 3D  
    r16_0_484 3D drawing Gearhead 3D  
    Portescap MotionCompass: Guide to Interactive Motor Selection (brochure) Literature  
    Miniature Motors for Automated Solutions (brochure) Literature  
    Ratio{%|%}unit 5.5 22.0 30.2 88.0 121.0 166.0 352.0 484.0 665.5 915.0
    Number of gear stages 1 2 2 3 3 3 4 4 4 4
    Direction of rotation{%|%} = / ≠ = = = = = = = = = =
    Efficiency{%|%}% 85 75 75 65 65 65 55 55 55 55
    Length{%|%}mm 16.0 20.1 20.1 24.2 24.2 24.2 28.3 28.3 28.3 28.3
    Length{%|%}in 0.63 0.79 0.79 0.95 0.95 0.95 1.11 1.11 1.11 1.11
    Weight{%|%}g 10.0 13.0 13.0 16.0 16.0 16.0 19.0 19.0 19.0 19.0
    Weight{%|%}oz 0.35 0.46 0.46 0.56 0.56 0.56 0.67 0.67 0.67 0.67
    Nominal Torque{%|%}mNm 300.0 300.0 300.0 300.0 300.0 300.0 300.0 300.0 300.0 300.0
    Nominal Torque{%|%}oz-in 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0 42.0
    Diameter{%|%}mm 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00
    Diameter{%|%}in 0.63 0.63 0.63 0.63 0.63 0.63 0.63 0.63 0.63 0.63
    Operating Voltage (VDC)
    Resistance per Phase, ± 10% (Ohms)
    Inductance per Phase, typ (mH)
    Nominal Phase Current, 2 ph. On (A)
    Nominal Phase Current, 1 ph. On (A)
    Back-EMF Constant (V/1000 rpm)
    Back EMF Amplitude (V/ksteps/s)
    Holding Torque, MIN (mNm)
    Holding Torque, MIN (oz-in)
    Holding Torque Typical (mNm)
    Holding Torque Typical (oz-in)
    Holding Torque, 1.5x nominal current (mNm)
    Holding Torque, 1.5x nominal current (oz-in)
    Detent Torque, Typical (mNm)
    Detent Torque, Typical (oz-in)
    Rated Current per Phase (A)
    Detent Torque, Max (mNm)
    Detent Torque, Max (oz-in)
    Rotor Inertia (kgm²10^-7)
    Rotor Inertia (oz-in-sec²10^-6)
    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)
    Speeds up to (rpm)
    Torque up to (oz-in)
    Torque up to (mNm)
    Current up to (thermal limits)
    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 Time Constant (C/W)
    Absolute accuracy 2 ph. On, Full step mode (degree)
    Operating Temperature Range{%|%}C -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85 -30 to 85
    Operating Temperature Range{%|%}F -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185 -22 to 185
    Rotor Operating Temperature Range (C)
    Rotor Operating Temperature Range (F)
    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)
    Shaft Load Max Axial (lb)
    Shaft Load Max Axial (N)
    Shaft Load Max Radial (lb)
    Shaft Load Max Radial (N)
    Max. Holding Force* @ .001", 0.0254 mm (N)
    Max. Holding Force* @ .001", 0.0254 mm (oz)
    Max. Holding Force* @ .002", 0.0508 mm (N)
    Max. Holding Force* @ .002", 0.0508 mm (oz)
    Max. Holding Force* @ .004", 0.1016 mm (N)
    Max. Holding Force* @ .004", 0.1016 mm (oz)
    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 (N)
    Min. Holding Force @ 0.001", 0.0254 mm (oz)
    Min. Holding Force @ 0.002", 0.0508 mm (N)
    Min. Holding Force @ 0.002", 0.0508 mm (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 (N)
    Min. Holding Force @ 0.004", 0.1016 mm (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
    Stroke Length, Typ{%|%}mm
    Stroke Length, Typ{%|%}in
    Steps per Revolution
    Operating Temperature Range (C)
    Operating Temperature Range (F)
    Maximum Coil Temperature (F)
    Maximum Coil Temperature (C)
    Bearing Type
    Insulation Resistance at 500 VDC (Mohms)
    Dielectric Withstanding Voltage (VAC)
    Number of lines available
    Output signal
    Supply Current - maxium (mA)
    Supply Current - stand-by (μA)
    Supply Current - typical (mA)
    Supply Voltage (V)
    Max. Recommended Input Speed{%|%}rpm 7,500 7,500 7,500 7,500 7,500 7,500 7,500 7,500 7,500 7,500
    Number of lines available
    Thermal Resistance (C/W)
    Natural Resonance Frequency @nominal current (Hz)
    Electrical time constant (ms)
    Angular Acceleration (nominal current)
    Radial Shaft Play (µm)
    Axial Shaft Play (µm)
    Max Radial Shaft Load (oz)
    Max Radial Shaft Load (N)
    Max Axial Shaft Load (oz)
    Max Axial Shaft Load (N)
    Leadwire
    Type of encoder
    Power rate, nominal current (kW/s)
    Linear Travel Accuracy
    Input Power (W)
    Stepper Type