Robotics
Industrial Automation
Dental Chairs
Rotary Tables
Pool Chair Lifts
Exam Room Tables
Massage Chairs
Packaging Eqipment
Labeling Eqipment
Laser Cutting Machines
Industrial Textile Machinery
Conveying Systems
Test & Measurement Equipment
Automated Guided Vehicles (AGV)
If you require a more compact design for an application requiring lower load capability, we also manufacture value-added Spur Gear Motors. Learn more about the various features and benefits in our Planetary Gear Motor versus. Spur Gear Motor design note.
Built to your specific requirements
Most of our DC Motors can be complimented with among our Planetary Gearheads. Ever-Power will work with you to design and produce a Planetary Gear Engine that will optimize the overall performance of your application.
Electric motor Type: Brushed / Brushless / Coreless
Voltage
Output Speed
Power
Current
Torque
Reduction Ratio
Shaft Material & Size
Gear Material
Shaft Configuration: (D Cut / Round / Splined / Other)
General Size Parameters (L, W, H)
Encoder Type: Optical / Hall Effect
Extra Assembly Requirements (lead wires, connectors, etc.)
Ever-Power is a DC planetary gear motor manufacturer providing custom-designed solutions for all applications. Request a quote for planetary gear motors or contact us for assistance with your design.
Overview
These tiny brushed DC gearmotors have a diameter of just 6 mm and weigh simply over a gram, which makes them great actuators for miniature robots and very small mechanisms. They consist of a coreless motor fastened to a planetary gearbox by a small clip. The gears are made from liquid crystal polymers (LCPs), and gearbox’s nylon result shaft is compatible with our 14 mm tires. Three gear ratios can be found:
26:1, which has a free run speed of 2500 RPM and stall torque of 1 1.5 oz-in (110 g-cm) at 6 V
136:1, that includes a free run speed of 500 RPM and stall torque of 8 oz-in (550 g-cm) at 6 V
700:1, which has a free run speed of 90 RPM and stall torque of 12 oz-in (900 g-cm) at 6 V
Notice: Stalling or overloading gearmotors can greatly decrease their lifetimes and even result in immediate damage. For these gearboxes, the suggested higher limit for instantaneous torque is certainly 3.5 oz-in (250 g-cm); we highly advise keeping used loads well under this limit. Stalls can also lead to rapid (potentially on the purchase of seconds) thermal damage to the motor windings and brushes; a general recommendation for brushed DC engine operation is 25% or much less of the stall current.
The intended nominal operating voltage for these motors is 3 V to 6 V, though generally, these types of motors can be utilized at voltages outdoors this range (rotation typically starts between 0.2 V and 0.3 V). Lower voltages is probably not practical, and higher voltages could begin negatively impacting the life span of the engine. When operating at 3 V, the free-run speed, stall torque, and stall current will all become about 50 % of what they are in 6 V as these specifications scale approximately linearly with voltage.
Since the gearmotor’s output shaft is nylon, there can be small variances in the diameter from unit to unit. These variations might cause press-match attachments like our 14 mm wheel 
to match loosely occasionally. If you experience a loose fitting, you could try swapping wheels or using a small dab of glue to greatly help hold the wheel on.
Gearmotor dimensions
The following diagram shows the micro plastic gearmotor dimensions in mm. The planetary gearbox has a D-shaped plastic result shaft, which is 2 mm in diameter with a section that’s flattened by 0.5 mm. The “D” portion of the shaft is certainly 2.5 mm long. The engine measures 6 mm in diameter and 9.3 mm long, and the gearbox size, labeled “L” in the diagram below, depends on the gear ratio.
26 RPM Planetary Equipment Motor with encoder: compatibility
This small 12V motor has a magnetic encoder mounted before the gearbox for a much better resolution. Its 4 mm output shaft helps it be compatible with plenty of ep mounts and component, including clamping hubs, Planetary motor mounts, along with 4 mm toothed wheels and pinion gears.
Technical specifications of the High quality Planetary Gear Motor with Encoder
Nominal voltage: 12V
Voltage range (recommended): 3-12V
No-load speed: 26 rpm
No-load current: 0.21A
Stall current: 4.9A
Stall torque: 42 kgf.cm
Gear ratio: 455,185:1
Metal planetary gear
DC motor
Output shaft diameter: 4 mm
Output shaft style: D-shaft
Result shaft support: dual ball bearings
Electrical connection: 2.54 mm 6-pin female header
Operating temperature: approx. -10 to +60 °C
Compatible mounting screws: M2 x 0.4 mm
Weight: 117.6 g
Encoder:
Cycles per revolution (electric motor shaft): 3
Cycles per revolution (result shaft): 1,365.555
Countable events per revolution (motor shaft): 12
Countable events per revolution (output shaft): 5,462.22
Relative quadrature encoder with magnetic Hall effect sensor
Encoder sensor insight voltage range: 2.4 to 26V
Encoder sensor output pulse amplitude: equal to encoder sensor input voltage
Resources for the 26 rpm planetary gear motor
DE3 magnetic encoder use parameters
Motor spec sheet
Spur Equipment vs. Planetary Gear
The two most common setup of DC engine gearbox are spur and planetary. Spur type gearbox are simpler, less expensive, and work best for low torque applications. Torque capacity of spur type gearbox is limited because each gear in the teach bears different load. Planetary gearboxes, in contrast, share equal load over multiple gears, making them more durable for high torque software.
Specification:
Model: PG42-775
Using Range Voltage: – 12-24V
Nominal Voltage: 24V
No Load Speed: 90 r/min
No Load Current: 500 mA
Max. Efficiency Speed: 90 r/min
Max. Efficiency Current: 3.5A
Max. ETorque: kg. cm-27 Power: W- 35
Stall Torque: 135 kg. cm
Stall Current: 20A
Reduction Ratio: 1:00 – 91
Weight: 775g