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JKM 42mm Planetary Gearbox for BLDC
    • JKM 42mm Planetary Gearbox for BLDC
    • JKM 42mm Planetary Gearbox for BLDC
    • JKM 42mm Planetary Gearbox for BLDC
    • JKM 42mm Planetary Gearbox for BLDC
    • JKM 42mm Planetary Gearbox for BLDC
    • JKM 42mm Planetary Gearbox for BLDC
Product Details

Model: Jkongmotor 42mm Round Head Planetary Gearbox Reducer for 42BLS Brushless dc Motor

Planetary gear reducers are compact components that strive to maximize the transmission of torque in various applications. The mechanisms ensure the transmission of high torque levels while simultaneously decreasing the required number of motor revolutions for a set level of power.

Generally, planetary gears are used as speed reducers. They are used to slow down motors and increase the torque. Torque is the working power of the machine.

A planetary gearhead takes a high-speed, low-torque input, say from an electric motor, then increases torque and reduces speed at the output by the gearhead ratio. This lets motors run at higher, more-efficient rpms in equipment that operates at low speeds.

It also enables high torque transmission in a small construction space thanks to the use of multiple parallel tooth combinations with several orbiting wheels. As the torque is distributed over several gear wheels, the tooth forces are smaller than in other types of gear.

A gear reducer is a mechanical transmission device that connects a motor to a driven load. It is also known as a gearbox. It allows you to modify the torque and speed between a motor and a load. Reduction gear assemblies are made up of series of gears.

High efficiency due to low rolling power. Almost unlimited transmission ratio options due to combination of several planet stages. Suitable as planetary switching gear due to fixing this or that part of the gearbox. Possibility of use as overriding gearbox.


General Specification of 42mm Small Planetary Gearbox:

42JXE100K
Ring materialMetal / Powder metal
Bearing at outputBall bearings
Max. Radial (12mm from flange)200N
Max. shaft axial load100N
Radial play of shaft (near to flange)≤0.06mm
Axial play of shaft≤0.3mm
Backlash at no-load≤2.5°
Shaft press fit force, max150N


42BLS BLDC Motor Gearbox Planetary Electrical Specification:

Gearbox Specifications:
Reduction ratioExact reduction ratioRated tolerance torqueMax momentary tolerance torqueEfficiencyL (mm)Weight (g)
1/3.7  1/5.21/3.71  1/5.181.0 N.m Max3.0 N.m90%31.5±0.5244
1/14  1/19  1/271/13.73  1/19.20  1/26.854.0 N.m Max12 N.m81%42.1±0.5314
1/51  1/71  1/100  1/1391/50.89  1/71.16  1/99.51  1/139.148.0 N.m Max25 N.m73%52.5±0.5433
1/181  1/218  1/253  1/305  1/354  1/426  1/495  1/5961/180.96  1/218.12  1/253.03  1/304.99  1/353.80  1/426.46  1/494.71  1/596.3110 N.m Max30 N.m66%62.9±0.5519
Input & output same rotation direction; Motor Max. input speed: <8000rpm; Operating temperature range: -15℃ ~ +80℃


DC Brushless Motor Shaft of Planetary Gearbox Reducer Specification:

BLDC Motor Shaft Pinion Specifications
Module0.6
No. of teeth1117
Pressure angle20°
Hole diameterΦ3.16   Φ3.98  Φ4.48
Reduction ratio1/5.18  1/19  1/27  1/71  1/100  1/139  1/253  1/305  1/354  1/426  1/495  1/5961/3.71  1/14  1/51  1/181  1/218


Planetary Gearbox Drawing:

planetary gearbox


JK42BLS 24V DC Motor Shaft Dimensions: (Unit=mm)

dc geared motor

Product Parameters:

Product Type: JK42BL Round Planetary Gearbox Reducer for Geared BLDC Motor

Size:42x42mm

Place of Origin:china

Minimum order quantity:10pcs

Material Science:stator, rotor, stainless steel shaft, copper wire, magnetic steel...

Feature summary:  Low Inertia,Quick Feedback; High Torque,High Efficiency; Small Vibration,Low Noise

Packing:The sample is packed in carton,the batch with plastic pallet

Delivery time:Standard product: 7-10days

Customized product: 25-30days

Transaction mode:EXW, FOB, FCA, CIF, FAS, CFR, CPT, CIP, DAF, DEQ, DDU, DDP...

APPLICATION:Medical equipment: medical pumps, stirring instruments, peristaltic pumps, biopharmaceutical equipment. Industrial equipment: winding machines, printing machines, robots, grinding, cutting, drilling, automatic conveying systems, automatic positioning systems, level control systems, electric actuators, electric valves, vending machines.


Customized Gearbox Design:

planetary gearbox Reducer


Customized Design:

If this motor do not match with your request. Please feel free to contact with us,We can make customized shaft / winding / mounting flange / cable / connector / Encoder / Brake / Gearbox and others. We will works side-by-side with you and your team to design a motor that will fit the precise needs of your application. All Engineering and Support is done in-house.

24v BLDC Motor


Customized Shaft Types:

48v brushless dc motor

bldc motors


Matched Brushless Motors:

Brushless DC Motor Model: JK42BL-Round BLDC Motor / JK42BLS Square DC Brushless Motor

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