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 need a more compact design for an application requiring lower load capability, we also manufacture value-added Spur Gear Motors. Find out more about the different features and benefits in our Planetary Gear Motor vs. Spur Gear Motor design note.
Built to your unique requirements
Most of our DC Motors could be complimented with one of our Planetary Gearheads. Ever-Power will continue to work with you to design and manufacture a Planetary Gear Electric motor which will optimize the efficiency of your application.
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)
Overall Size Parameters (L, W, H)
Encoder Type: Optical / Hall Effect
Additional 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 equipment motors or contact us for advice about your design.
Overview
These tiny brushed DC gearmotors have a diameter of simply 6 mm and weigh just over a gram, which makes 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 produced from liquid crystal polymers (LCPs), and gearbox’s nylon output shaft is compatible with our 14 mm wheels. 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, which has a free run speed of 500 RPM and stall torque of 8 oz-in (550 g-cm) at 6 V
700:1, that includes a free run velocity of 90 RPM and stall torque of 12 oz-in (900 g-cm) at 6 V
Note: Stalling or overloading gearmotors may greatly decrease their lifetimes and also result in immediate harm. For these gearboxes, the recommended higher limit for instantaneous torque is usually 3.5 oz-in (250 g-cm); we highly advise keeping applied loads well under this limit. Stalls may also result in rapid (potentially on the order of seconds) thermal damage to the engine windings and brushes; an over-all recommendation for brushed DC motor procedure 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 kinds of motors can be used at voltages outside 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 end up being approximately half of what they are in 6 V as these specifications scale approximately linearly with voltage.
Since the gearmotor’s output shaft is nylon, there may be small variances in the diameter from unit to unit. These variations may cause press-match attachments like our 14 mm wheel to match loosely in some instances. In the event that you experience a loose fit, you could attempt swapping wheels or using a small dab of glue to help contain the wheel on.
Gearmotor dimensions
The next 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 is flattened by 0.5 mm. The “D” portion of the shaft can be 2.5 mm long. The engine steps 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 includes a magnetic encoder mounted before the gearbox for a much better resolution. Its 4 mm output shaft makes it compatible with lots of ep mounts and component, including clamping hubs, Planetary motor mounts, along with 4 mm toothed wheels and pinion gears.
Specialized specifications of the Premium Planetary Gear Engine 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 installation screws: M2 x 0.4 mm
Weight: 117.6 g
Encoder:
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 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 Gear vs. Planetary Gear
The two many common setup of DC electric motor gearbox are spur and planetary. Spur type gearbox are simpler, less expensive, 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, in contrast, share the same load over multiple gears, making them stronger for high torque app.
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