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Best Internal Gears - Buying Guide

Last Updated: 09/20/2019

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Bestselling Internal Gears on Amazon

  1. Longruner 75 Type DIY Plastic Crown Gear Single Double Reduction Gear Worm Gear for RC Car Motor Robot
  2. Boston Gear G664 Internal Gear, 14.5 Degree Pressure Angle, 32 Pitch, 48 Teeth, Brass
  3. Boston Gear YI32192 Internal Gear, 20 Degree Pressure Angle, 32 Pitch, 192 Teeth, Brass
  4. Boston Gear G693 Internal Gear, 14.5 Degree Pressure Angle, 16 Pitch, 96 Teeth, Brass
  5. Trail-Gear 186040-1-KIT
  6. Boston Gear G675 Internal Gear, 14.5 Degree Pressure Angle, 24 Pitch, 36 Teeth, Brass
  7. Boston Gear G677 Internal Gear, 14.5 Degree Pressure Angle, 24 Pitch, 48 Teeth, Brass
  8. Boston Gear YI4872 Internal Gear, 20 Degree Pressure Angle, 48 Pitch, 72 Teeth, Brass
  9. Boston Gear G680 Internal Gear, 14.5 Degree Pressure Angle, 24 Pitch, 96 Teeth, Brass
  10. Boston Gear G681 Internal Gear, 14.5 Degree Pressure Angle, 24 Pitch, 144 Teeth, Brass

  #1

Longruner 75 Type DIY Plastic Crown Gear Single Double Reduction Gear Worm Gear for RC Car Motor Robot

 PartNumber: LQY12   |   Asin: B07RHV5QVZ

Longruner 75 Type Plastic Crown Gear Single Double Reduction Gear Worm Gear, great for all kinds of DIY cars, robots, model making accessories; suitable for DIY model production technology. Package included: -19X Double Reduction Gear(each one) --16102B, 18102A, 20082B, 20102B, 22082A , 22102B, 24102B, 24122B, 26082B, 28102B, 30162A, 30122B, 32082B, 34102B, 38082B, 40102B, 46082A, 48102B, 50102A -12X Single Reduction Gear(each one) --202A, 242A, 282A, 302A, 303A, 302.5A, 322A, 362A, 402A, 422A, 482A, 562A -11X Crown Gear(each one) --C152A, C203A, C282A, C282.5A, C303A, C322A, C20082A, C28082B, C28102.5B, C30102B, C40102B -9X Spindle Gear(each one) -- 80.8A, 81A, 81.5A, 82A, 102A, 122A, 132A, 142A, 182A -7X Belt Pulley(each one) --122B,102B, 62A, 132A, 16.82A, 242AB -6X Axle Sleeve(each one) --2A(2PCS), 2.5A(2PCS), 3A(2PCS) -5X Belt(each one) -2x Worm Gear(each one) -- W6*62A, W6*82A -2X Connecting Rack(each one) -1X Tee Collar --3T-2A-2B -1X Bevel gear --S162A Model Note: 1. The first two digits encoding: the number teeth of externally toothed gear. 2. The encoding three or four numbers: the number of internal gear teeth. 3. coding fifth digits: the pore size of the gears. 4. Last encoded in English: A: tight B: loose -2A indicates that the central axis is 1.95mm; it is tightly fitted with the optical axis of 2mm and rotates together with the optical axis. -2B indicates that the central axis is 2.05 mm; with the optical axis of 2 mm, it is loosely fitted and is free to rotate on the optical axis. -For example: Size of 16102B: 16 external teeth, 10 internal teeth, 2MM aperture, loose axle. -Gear diameter: (16+2)X 0.5(MM)=9MM Gear outer diameter is 9MM

Features

  • 100% Brand new and high quality.
  • 75 Type Plastic Crown Gear ideal for DIY science and small production, product design and mechanical model.
  • Type: Spindle gear, crown gear, single gear, double gear, worn gear, bevel gear, belt pulley, belt,connecting rack, axle sleeve, tee collar.
  • Material:Plastic; Quantity:75pcs; Weight:40g.
  • This is the most complete gear set, which can meet your DIY needs.
  • See more on Amazon...

Brand: Longruner   |   Manufacturer: Longruner

Package Dimensions: 1.2 x 2.8 x 5.6 inches (3.0 x 7.1 x 14.2 cm)

Amazon Price: $7.99 | as of 09/20/2019(5:40am pst)
Availibility: Usually ships in 24 hours
List Price: $7.99

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  #2

Trail-Gear 186040-1-KIT

 Ean: 1200475780905   |    PartNumber: 186040-1-KIT   |   Asin: B00ZBB2S76

This item is designed to fit specific vehicles. Please ensure correct part fitment before purchasing this project. Contact the seller directly for additional product information and availability.MOTOR MOUNT KIT.

Features

  • Comes with full manufacturer warranty
  • Fits multiple makes and models (contact seller with your vehicle for fitment compatibility information)
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Brand: Trail Gear   |   Manufacturer: Trail-Gear

Item Dimensions: 3.5 x 7.5 x 7.5 inches (8.9 x 19.1 x 19.1 cm)   |   

Amazon Price: $130.19 | as of 09/20/2019(5:40am pst)
Availibility: Usually ships in 2-3 business days
List Price: $130.19

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  #3

New Design 6v 1rpm Reversible Torque Turbo Worm Geared Motor Dc Gw Suitable Promotion, Worm Reduction Gear - V Dc Motor High Torque, Dc Reversible Motor Control, Dc Motor Torque, Geared Motor

 Ean: 0707209479490   |    PartNumber: 93HY5EZOHH8XTRPQWHRS   |   Asin: B07XQK8RXC

1. Turbo worm geared motor with self-lock, that is, in the case of motor without electric, the output axis is fixed, self-lock.
2. The reducer output shaft arranged vertically with the motor shaft, whole motor output shaft relatively-short than general gear motor, widely used to be installed the dimension requirements strictly occasion.
Application: open the window, door, Mini winch. ect.
Package include:
1 x High Torque Turbo Worm Geared Motor

Features

  • EXCELLENT MATERIAL: Professional for 6v 1rpm reversible torque turbo worm geared motor dc gw suitable promotion, wear resistance, good storage, allows you to use for a long time
  • PRODUCT SPECIFICATIONS: Certification: ce, Type: Gear Motor, Efficiency: IE 1, Construction: Permanent Magnet, Commutation: Brushless, Protect Feature: Totally Enclosed, Continuous Current(A): Others, Output Power: Others, Voltage(V): DC 6V, Model Number: GW370, Usage: Boat, Usage: Car, Usage: Elect
  • CONVENIENT FOR USING: Safety design with protection cover 6v 1rpm reversible torque turbo worm geared motor dc gw suitable promotion, After cleaning, You can go on keepping clean and convenient for your next use
  • EASY TO CLEAN: You can clean quickly. It can be cleaned and put into a cupboard. It does not occupy a lot of space and can be kept well
  • SEARCH IN MY STORE: v dc motor high torque, dc reversible motor control, dc motor torque, geared motor, high torque low rpm motor, geared dc motors, gear worm, rpm gear motor, motor high torque, high torque gear motor, geard motor
  • See more on Amazon...

Brand: EVA DE EVA   |   Manufacturer: EVA DE EVA

Amazon Price: $27.99 | as of 09/20/2019(5:40am pst)
Availibility: Usually ships in 4-5 business days
List Price: $27.99

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  #4

Professional Dc Torque Turbo Worm Gearbox Micro Motor Right Angle Geared 12v 80rpm, in Electric Motors - Reduction Box, High Torque, V High Torque Dc, High Torque Motors Geared, Low RPM

 Ean: 0707209364819   |    PartNumber: 2PDA7LBKC3O0MAULQ7FY   |   Asin: B07XKVZXFC

This is the DC worm gear motor, the direction of rotation can change through different connection.
The self-locking worm geared motor, that is, in the absence of electric motors, the output shaft is unable to move, this is self-locking
The transmission output shaft direction vertical with motor shaft, so that the whole body is very short, widely used to make the installation mass absolutely necessary.
Used in electrical appliances including remote control curtains, shredders and photocopiers.
Material: metal
Size (Lx WxH): Approx. 115x 40x 36mm / 4.53x 1.57x 1.42 inch
Voltage: DC 12V
RMP: 80RPM
Color: Black + Silver
Package includes:
1x turbo geared motor
Only the above package content, other products are not included.

Features

  • EXCELLENT MATERIAL: Professional for dc torque turbo worm gearbox micro motor right angle geared 12v 80rpm, wear resistance, good storage, allows you to use for a long time
  • PRODUCT SPECIFICATIONS: Certification: ce, Continuous Current(A): --, Commutation: Brushless, Model Number: turbo geared motor, Construction: Permanent Magnet, Efficiency: IE 1, Type: Tubular Motor, Torque: --, Protect Feature: Totally Enclosed, Output Power: --, Usage: AS SHOWN
  • CONVENIENT FOR USING: Safety design with protection cover dc torque turbo worm gearbox micro motor right angle geared 12v 80rpm, After cleaning, You can go on keepping clean and convenient for your next use
  • EASY TO CLEAN: You can clean quickly. It can be cleaned and put into a cupboard. It does not occupy a lot of space and can be kept well
  • SEARCH IN MY STORE: reduction box, high torque, v high torque dc, high torque motors geared, low rpm, v high torque
  • See more on Amazon...

Brand: Kings cat   |   Manufacturer: Kings cat

Amazon Price: $35.99 | as of 09/20/2019(5:40am pst)
Availibility: Usually ships in 4-5 business days
List Price: $35.99

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  #5

New Design Dc 12v 6mm Shaft 5rpm Torque Turbine Worm Gear Box Reduction Motor, Motor Reduction - V Motor High Torque, High Torque Motor, V Motor High Torque, V Box Motor, Long Shaft Motor

 Ean: 0707209226599   |    PartNumber: E4B78IHJ2IXC1G0E8JZ3   |   Asin: B07X9RC2LN

Package Includes:
1 x DC Gear Motor
100% SATISFACTION GUARANTEE- We know you will be extremely satisfied and you will fall in love with them. However, If at any time you are unsatisfied, please contact us, we will provide a refund within the first 60 days and replace defective items for life, we want to ensure your are 100% satisfied!

Scroll to the top now and click Add to Cart to begin your favorite experience.

Features

  • EXCELLENT MATERIAL: Professional for dc 12v 6mm shaft 5rpm torque turbine worm gear box reduction motor, wear resistance, good storage, allows you to use for a long time
  • PRODUCT SPECIFICATIONS: Certification: Other
  • CONVENIENT FOR USING: Safety design with protection cover dc 12v 6mm shaft 5rpm torque turbine worm gear box reduction motor, After cleaning, You can go on keepping clean and convenient for your next use
  • EASY TO CLEAN: You can clean quickly. It can be cleaned and put into a cupboard. It does not occupy a lot of space and can be kept well
  • SEARCH IN MY STORE: v motor high torque, high torque motor, v motor high torque, v box motor, long shaft motor, high torque motor, turbine gearbox, reduction motor gas, reduction motor, geared motor
  • See more on Amazon...

Brand: Black Roses   |   Manufacturer: Black Roses

Amazon Price: $21.99 | as of 09/20/2019(5:40am pst)
Availibility: Usually ships in 4-5 business days
List Price: $21.99

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  #6

Gear rack made of steel module 2.5 tooth width 25mm height 25mm length 1000mm

 PartNumber: 24260500   |   Asin: B0087EEC5A

Material: Specially treated bright steel C45KG. Milled teeth. Precisely Straightened. Cross-section tolerance h11 = -1/10 to -2/10 depending on size. Straight teeth. Pressure angle 20 . Tooth quality 8d25 modelled on DIN 3962, 3967, 3968. The teeth on the gear racks are manufactured using an overhead milling cutter. This leads to negative tolerances for dimension a and h0: up to Module 2: -0,2 mm. Module 2,5 to 3: -0,3 mm. Module 5 to 8: -0,4 mm. From Module 2, except for nominal length 500 mm, cut for continuous linking. * Length = Nominal length. The real length is roughly one multiple of the pitch. Module 2,5 b [mm] 25 ha [mm] 25 Nominal Length L [mm] 1000 Finish Size [mm] 1005,0 - 1,0 h0 [mm] 22,50 Material C45KG Weight [kg] 4,31

Features

  • Material: Specially treated bright steel C45KG. Milled teeth. Precisely Straightened. Cross-
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Brand: Maedler   |   Manufacturer: Maedler

Item Dimensions: 0.98 x 0.98 x 39.37 inches (2.5 x 2.5 x 100.0 cm)   |   

Amazon Price: $63.54 | as of 09/20/2019(5:40am pst)
Availibility: Usually ships in 24 hours
List Price: $63.54

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  #7

American Standard Timing Pulley, 40XL037-5/16

 PartNumber: 40XL037-5/16   |   Asin: B07GNQFTXD

American standard timing pulley

Features

Brand: XCNC   |   Manufacturer: Material: carbon steel

Amazon Price: $71.56 | as of 09/20/2019(5:40am pst)
Availibility: Usually ships in 4-5 business days
List Price: $71.56

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  #8

European Standard Expansion Sleeve, CAL5A-F30/55-LOCK4 Combination

 Ean: 0192687210312   |    PartNumber: CAL5A-F30/55-LOCK4   |   Asin: B07GK718VJ

European standard expansion sleeve, CAL5A-F30/55-LOCK4

Features

Brand: XCNC   |   Manufacturer: Carbon steel

Amazon Price: $87.78 | as of 09/20/2019(5:40am pst)
Availibility: Usually ships in 4-5 business days
List Price: $87.78

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  1. Longruner 75 Type DIY Plastic Crown Gear Single Double Reduction Gear Worm Gear for RC Car Motor Rob...
  2. Trail-Gear 186040-1-KIT

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  1. Longruner 75 Type DIY Plastic Crown Gear Single Double Reduction Gear Worm Gear for RC Car Motor Rob...
  2. Trail-Gear 186040-1-KIT

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  1. Longruner 75 Type DIY Plastic Crown Gear Single Double Reduction Gear Worm Gear for RC Car Motor Rob...
  2. Trail-Gear 186040-1-KIT

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  1. Longruner 75 Type DIY Plastic Crown Gear Single Double Reduction Gear Worm Gear for RC Car Motor Rob...
  2. Trail-Gear 186040-1-KIT



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