Pool Chair Lifts
Exam Room Tables
Laser Cutting Machines
Industrial Textile Machinery
Test & Measurement Equipment
Automated Guided Automobiles (AGV)
If you need 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 unique requirements
The majority of our DC Motors could be complimented with among our Planetary Gearheads. Ever-Power will continue to work with you to create and produce a Planetary Gear Motor which will optimize the performance of your application.
Motor Type: Brushed / Brushless / Coreless
Shaft Material & Size
Shaft Configuration: (D Cut / Round / Splined / Other)
Overall Size Parameters (L, W, H)
Encoder Type: Optical / Hall Effect
Additional Assembly Requirements (lead wires, connectors, etc.)
Ever-Power is a DC planetary equipment motor producer providing custom-designed solutions for all applications. Request a quote for planetary gear motors or contact us for advice about your design.
These tiny brushed DC gearmotors possess a diameter of just 6 mm and weigh just over a gram, making them great actuators for miniature robots and very small mechanisms. They consist of a coreless engine 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 this 14 mm tires. Three gear ratios are available:
26:1, that includes a free run speed of 2500 RPM and stall torque of just one 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 swiftness of 90 RPM and stall torque of 12 oz-in (900 g-cm) in 6 V
Take note: Stalling or overloading gearmotors may greatly reduce their lifetimes and also result in immediate damage. For these gearboxes, the suggested top limit for instantaneous torque is 3.5 oz-in (250 g-cm); we strongly advise keeping used loads well under this limit. Stalls can also result in rapid (possibly on the order of seconds) thermal damage to the motor windings and brushes; a general recommendation for brushed DC electric motor operation is 25% or less of the stall current.
The intended nominal operating voltage for these motors is 3 V to 6 V, though in general, these types of motors can be utilized at voltages outdoors this range (rotation typically starts among 0.2 V and 0.3 V). Lower voltages may not be useful, and higher voltages could start negatively affecting the life span of the electric motor. When operating at 3 V, the free-run velocity, stall torque, and stall current will all be about 50 % of what they are at 6 V as these specifications scale roughly linearly with voltage.
Because the gearmotor’s output shaft is nylon, there may be small variances in the diameter from unit to unit. These variations may cause press-suit attachments like our 14 mm wheel to fit loosely occasionally. If you experience a loose fitting, you could attempt swapping tires or using a small dab of glue to greatly help hold the wheel on.
The following diagram shows the micro plastic gearmotor dimensions in mm. The planetary gearbox includes a D-shaped plastic result shaft, which is 2 mm in diameter with a section that is flattened by 0.5 mm. The “D” portion of the shaft is usually 2.5 mm long. The motor measures 6 mm in diameter and 9.3 mm in length, and the gearbox length, labeled “L” in the diagram below, depends upon the gear ratio.
26 RPM Planetary Gear Motor with encoder: compatibility
This small 12V motor has a magnetic encoder mounted prior to the gearbox for a much better resolution. Its 4 mm output shaft makes it compatible with lots of ep mounts and part, including clamping hubs, Planetary engine mounts, in addition to 4 mm toothed tires and pinion gears.
Technical specifications of the Premium 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
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
Cycles per revolution (engine 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 input voltage range: 2.4 to 26V
Encoder sensor output pulse amplitude: equivalent 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 the majority of common setup of DC electric motor gearbox are spur and planetary. Spur type gearbox are simpler, less costly, and work best for low torque applications. Torque capability of spur type gearbox is limited because each equipment in the train bears different load. Planetary gearboxes, on the other hand, share equal load over multiple gears, making them more durable for high torque application.
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