Km-42f550 Hot Sale Miniature Worm Gear Reduction Motor


Quick Details

Place of Origin:

Zhejiang, China

Brand Name:


Model Number:



Boat, Car, Electric Bicycle, Fan, Home Appliance, vending machine,air pillow machine,power tool,model




Gear Motor


on load


Permanent Magnet



Protect Feature:



No load 38rpm

Continuous Current(A):

on load 2A


IE 1


Width 42mm, length 92mm

Shaft diameter:

8 mm

D-shape diameter:

7 mm

Rated Voltage:

12 V DC

Operating Temperture:

-10~ +60

Way of commutation:


shaft position:






DC Motor housing size:

Dia 35.8mm, length 57mm

Supply Ability

Supply Ability:
5000000 Piece/Pieces per Month

Packaging & Delivery

Packaging Details
B3B Corrugated cartons

Online Customization

Km-42f550 Hot Sale Miniature Worm Gear Reduction Motor


20 years’ motor design and production experience
90 million-piece annual capacity
Auto motors are almost entirely produced on automated lines
Facilities certified to IAFT16949:2016,ISO 9001:2008 and ISO 14001:2004
Advanced equipment from Sodick, Hexagon,Mitutoyo, Magtrol and Votsch
10% sales revenue invested in R&D and automatic equipment every year
Customer PPM: auto motors s 30;general motors s 3,000

Product Description

1.1 Product Specification:Thebelowmodelsfrom customized.

Ratio Model No. Voltage No load On load
Operating Range Norminal Voltage Current Speed Current Torque Speed
V V A r/min A r/min
1/189 KM-42F550-189-1242 6.0-12.0 12 0.6 41.7 2.4 40 35.5
1/554 KM-42F550-554-1238 6.0-12.0 12 1.3 38 2 23 36

Note:(1).The above performance are customized from clients,If need more other modelsabout KM-42F550

we can also supply for you!

(2).Unit Conversion:≈0.098mN.m≈ 1mm=0.039in 1g=0.035oz.

(3). Customized electric performance on requestby using suitable dc motor windings and ratio.

1.2. Product Structure Drawing: KM-42F550

Note: (1). Shaft length,D-shaped size and length can be custom made.

(2).GearboxmaxWidthis 42mmand DC motormax diameter 35.8mm.

(3). Reduction ratios for option, different ratios, different performance, as below:

Gear BoxSize (mm)


of stage

General Reduction Ratios


1.3. Performance Curve: KM-42F550-554-1238

Note:(1).The above performance and characteristics are measured based on limited motor samples only.

(2).Rotation direction:CW/CCW when viewing from the output shaft end with positive voltage applied

to the positive terminal.

1.4. Basic Features:

  • Spur Gears
  • Bi-direction
  • Sleeve Bronze Bushing
  • Carbon Brush DC Motor
  • Zinc Die Cast GearCase

1.5.Typical Application:

  • Vending Machine
  • Air PillowMachine
  • Power Tool
  • Model


More DC motors

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Company Information


Q:1.What kind of motors you can provide?

A: For now, we mainly provide permanent magnet brushed dc motors (including vibration motors, low voltage dc motors and high voltage dc motors) with diameter range in 6~80mm and also Dia10~80mm size gear motors.

Q:2. Can you send me a price list?

A: For all of our motors, they are customized based on different requirements like lifetime, noise, voltage, and shaft etc. The price also varies according to annual quantity. So it’s really difficult for us to provide a price list. If you can share your detailed requirements and annual quantity, we’ll see what offer we can provide.

Q:3. What’s the lead time for regular order?

A: For orders, the standard lead time is 35-40 days and this time can be shorter or longer based on different model, period and quantity.

Q:4. Is it possible for you to develop new motors if we can provide tooling cost?

A: Yes. Please kindly share the detailed requirements like performance, size, annual quantity, target price etc. Then we’ll make our evaluation to see if we can arrange or not.

Q:5. Can I get some samples?

A: It depends. If only a few samples for personal use or replacement, I am afraid it’ll be difficult for us to provide because all of our motors are custom made and no stock available if there is no further needs. If just sample testing before the official order and our MOQ, price and other terms are acceptable, we’d love to provide samples.