This is the smallest high precision NEMA 8 Stepper motor, it has an integrated Planetary gearbox with a 4.75:1 gear ratio, the resolution reach 0.38° step angle. It's a good solution in applications that need very low rotation speeds and/or lots of torque.
Electrical Specification
Manufacturer Part Number
8HS15-0604S-PG5
Motor Type
Bipolar Stepper
Step Angle
0.38°
Holding Torque
17.1Ncm
Rated Current/phase
0.6A
Phase Resistance
10ohms
Recommended Voltage
12V
Inductance
5.5mH±20%(1KHz)
Gearbox Specifications
Gearbox Type
Planetary
Gear Ratio
4.75:1
Efficiency
90%
Backlash at No-load
<=1°
Max.Permissible Torque
0.5Nm(70.8oz-in)
Moment Permissible Torque
1Nm(141.6oz-in)
Shaft Maximum Axial Load
5N
Shaft Maximum Radial Load
25N
Physical Specifications
Frame Size
22 x 22mm
Motor Length
38mm
Gearbox Length
20.5mm
Shaft Diameter
?6mm
Shaft Length
15mm
D-cut Length
9mm
Number of Leads
4
Lead Length
300mm
Weight
120g
Connection
Wire Color
Black
Green
Red
Blue
Board Connector
A
C
B
D
Custom Options
Connectors: Molex, Harwin, Tyco/AMP, JST etc.
Lead wires & cables: Special lengths, Protective hose
Shaft: Round, D-Cut, Cross drilled, Key-Way, Thread or Hollow
How to choose a geared stepper motor?
Selecting a geared stepper motor will result in increasing the output torque and decreasing the speed. Simply, the Gearbox Output Speed is:
The gearbox output torque will depending on many factors, it can be calculated by:
The Gearbox Step Angle can be determined by:
When choosing a stepper motor with a gearbox, keep in mind that the gearbox Max Permissible Torque, beyond which the gearbox could become damaged.