SHARE

Products

Mini Motor Gearhead

R22HT

Portescap introduces the new 22mm high torque planetary gearbox. The R22HT features a full metal gearbox design and specially designed gears providing torque up to 3.7Nm and efficiency ranging from 62% to 82% with a max recommended speed of 12,000 RPM.

Motor Highlights

  • Highly efficient gearbox
  • Lower weight and reduced overall size
  • Modular design
  • Ideal for battery operated tools

Customization Available

  • Shaft lengths
  • Ball bearings
  • Fixation holes
  • Mounting flanges
  • Special lubricants

Applications

Specification + Detail
Resources
Metric English 
Ratio{%|%}unit 10.9 14.5 16.4 29.2 36.5 61.7 84.3 157.5 410.1 850.3
Number of gear stages 2 2 2 2 3 3 3 3 4 4
Direction of rotation{%|%} = / ≠ = = = = = = = = = =
Efficiency{%|%}% 82 82 82 82 72 72 72 72 62 62
Length{%|%}mm 28.3 28.3 28.3 28.3 35.1 35.1 35.1 35.1 41.9 41.9
Length{%|%}in 1.11 1.11 1.11 1.11 1.38 1.38 1.38 1.38 1.65 1.65
Weight{%|%}g 52.0 52.0 52.0 52.0 66.0 66.0 66.0 66.0 81.0 81.0
Weight{%|%}oz 1.83 1.83 1.83 1.83 2.33 2.33 2.33 2.33 2.86 2.86
Nominal Torque{%|%}mNm 2,400.0 2,400.0 2,400.0 2,400.0 3,300.0 3,300.0 3,300.0 3,300.0 3,700.0 3,700.0
Nominal Torque{%|%}oz-in 0.3 0.3 0.3 0.3 0.5 0.5 0.5 0.5 0.5 0.5
Diameter{%|%}mm 22.00 22.00 22.00 22.00 22.00 22.00 22.00 22.00 22.00 22.00
Diameter{%|%}in 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86
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 12,000 12,000 12,000 12,000 12,000 12,000 12,000 12,000 12,000 12,000
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
Document Technology Document Type Language File Type
R22HT Specification Sheet Gearhead Specification Page  
R22HT 3D drawing Gearhead 3D  
R22HT drawing Gearhead DXF Drawing  
R22HT (brochure) Gearhead Literature  
R22HT (press release) Gearhead Press Release