Best Mechanical Worm Gears in 2026

Daisy
Last Updated: Jul 30, 2026

At a Glance: Our Top Picks for Mechanical Worm Gears

CNBTR 5mm Bore Hole Diameter Brass Gear Shaft with 20 T Wheel 0.5 Modulus Set Drive Gear Box Shaft
#TOP1
Cnbtr 5Mm Bore Hole Diameter Brass Gear Shaft
7.2
PM SCORE
CNBTR 2PCS 45# Steel 2 Modulus 20 Teeth 14mm Hole Dia 90 Degrees Tapered Bevel Gear Wheel
#TOP2
Cnbtr 2Pcs 45# Steel 2 Modulus 20 Teeth
6.9
PM SCORE
CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box
#TOP3
Cnbtr 40T Brass Gear Wheel & 5Mm Hole
6.7
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Mechanical Worm Gears of 2026

Market Overview
Mechanical Worm Gears Reviewed
  • Reviews Analyzed: 321 Items
  • PM Avg. Rating: 4.0 / 10
21 Products Evaluated
  • Highest Price: $146.21
  • Lowest Price: $5.99
  • Avg. Price: $34.90

Cnbtr 5Mm Bore Hole Diameter Brass Gear Shaft With 20 T Wheel 0.5 Modulus Set Drive Gear Box Shaft

CNBTR
M6180801066
0.79 X 0.38 X 0.79 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CNBTR (FBM Arrive in 20-25 days ,FBA 2-3days ) 9.81

Features

Set include a 0.5 modulus 5MM Hole Dia brass gear shaft and a 20 T brass worm gear wheel.

The transmission structure of shaft is simple, compact, small volume and light weight.

Shaft Z1=1, turn a round of gear T, can get a large transmission ratio, generally in the power transmission, the transmission ratio I=10-80, like big transmission ratio, if use with gear transmission, will need to take the multi-stage transmission.

High quality material selection, carefully processing create high quality product.

Made of brass, long time service.

Cnbtr 2Pcs 45# Steel 2 Modulus 20 Teeth 14Mm Hole Dia 90 Degrees Tapered Bevel Gear Wheel

CNBTR
M6180313016
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CNBTR (FBM Arrive in 20-25 days ,FBA 2-3days ) 9.81

Features

[Specification] Aperture: 14mm; Height: 27mm; Maximum outer diameter: 42mm, module: 2 modules, number of teeth: 20T.

[Quality Material] Made of high quality 45# steel ,high wear-resistance,longtime use. Lower contact ratio between gears, higher load capacity.

[Application] It is widely used in transportation, hardware, agricultural equipment, printing machinery, automobile applications, mechanical transmission, etc.

[Operation] Fixing mode: M5 screw side fixing+keyway. The contact between gears is firm, ensuring the normal operation of the machine and good bearing capacity.

[Note] 1 to 1 bevel gear (only 1 to 1 can be matched, not with other module teeth), 90 degrees.

Cnbtr 40T Brass Gear Wheel & 5Mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box

CNBTR
M6180801074
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CNBTR (FBM Arrive in 20-25 days ,FBA 2-3days ) 9.81

Features

Set include one 0.5 modulus 5MM Hole Dia brass gear shaft and one 40 T brass gear wheel.

The transmission structure of shaft is simple, compact, small volume and light weight.

Shaft Z1=1, turn a round of gear T, can get a large transmission ratio, generally in the power transmission, the transmission ratio I=10-80, like big transmission ratio, if use with gear transmission, will need to take the multi-stage transmission.

High quality material selection, carefully processing create high quality product.

Made of brass, long time service.

Vevor 27Pcs Metal Lathe Gears, Precise Mini Lathe Replacement Gears Including Box Gear Set, Slotless Gears, Metal Motor Gears, Variable Gears, Belt Gear For Cj0618 Mini Lathes & Milling Machines

VEVOR
LATHEGEARS270618
11.00 X 10.60 X 2.80 Inches
5.80 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

27 PCS Gear Kits: 2 x 80T gears, 1 x 72T gear, 1 x 65T gear, 2 x 60T gears, 1 x 57T gear, 1 x 55T gear, 1 x 54T gear, 2 x 50T gears, 1 x 48T gear, 2 x 45T gears, 1 x 45T gear, 2 x 40T gears, 1 x 35T gear, 1 x 33T gear, 4 x slotless gear, 1 x motor gear, 2 x variable gears, and 1 x belt gear.

High-quality Material: The metal lathe gears are made of #45 steel that features impressive plasticity and hardness. They can stand up to wear and corrosion.

Precise Gear Teeth: The mini lathe gears have been through a deburring process which left clean and precise gear teeth. With these gears, your lathe can work more efficiently.

Easy To Assemble: Follow the lathe instruction or videos online; it is easy for you to install these lathe gears on your mini-lathe.

Extensive Compatibility: The metal gear set is compatible with all types of CJ0618 mini-lathe.

Cnbtr 6Mm Hole Dia Brass Gear Shaft & 31Mm 0Uter Dia 60T Brass Gear Wheel 0.5 Modulus Set

CNBTR
M6180801078
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CNBTR (FBM Arrive in 20-25 days ,FBA 2-3days ) 9.81

Features

Set include one 0.5 modulus 6MM Hole Dia brass gear shaft and one 60 T brass gear wheel.

The transmission structure of shaft is simple, compact, small volume and light weight.

Shaft Z1=1, turn a round of gear T, can get a large transmission ratio, generally in the power transmission, the transmission ratio I=10-80, like big transmission ratio, if use with gear transmission, will need to take the multi-stage transmission.

High quality material selection, carefully processing create high quality product.

Made of brass, long time service.

Pgfun 1:1 Right Angle Bevel Gearbox 1.5 Module 20 Teeth 90° Angle Drive Steering Gear Device Simple Mechanical Diy Module With 10Mm Shaft

PGFUN
TYXC-0010-1-1_10
4.72 X 3.35 X 1.38 Inches
0.30 Kilograms
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
PGFUN 6.24

Features

1:1 Right Angle Bevel Gearbox for Simple DIY Mechanical Application.

Specification: 1.5 module, 20 teeth, bevel gear with 2 x M4 screw holes, 10mm shaft.

Motor drive can be realized with coupling and belt pulley gear.

Material: Aluminum alloy & #45 Steel, Overall Size: 120 x 85 x 35 mm.

Note: it's simple steering gear, can not used for high troque and high rotating speed CNC application.

Andantex R3000-2 Anglgear Right Angle Bevel Gear Drive, Universal Mounting, Single Output Shaft, 2 Flanges, Inch, 3/8" Shaft Diameter, 2:1 Ratio.11 Hp At 1750Rpm

ANDANTEX
R3000-2
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Made in USA

Carburized case hardened "Gleason Coniflex" bevel gears, AGMA quality class 9

Compact precision machined aluminum housing coated with a chemical film

Stainless Steel 416 precision ground shafts supported by 2 Ball Bearings

Grease lubricated for life and bearings sealed with Buna-N seals

Cnbtr 0.5 Modulus Brass Gear Shaft Set 6Mm Hole Dia + 50T Brass Wheel Set 1:50 Reduction Ratio

CNBTR
M6180801087
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CNBTR (FBM Arrive in 20-25 days ,FBA 2-3days ) 9.81

Features

Include one 0.5 modulus brass gear shaft and one 50 T brass gear wheel.

The transmission structure of shaft is simple, compact, small volume and light weight.

Shaft Z1=1, turn a round of gear T, can get a large transmission ratio, generally in the power transmission, the transmission ratio I=10-80, like big transmission ratio, if use with gear transmission, will need to take the multi-stage transmission.

High quality material selection, carefully processing create high quality product.

Made of brass, long time service.

Alomejor 3Pcs 36 Teeths Gear Professional Nylon Outer Diameter 38Mm Electric Vehicle Bicycle Worm Gear Electric Bicycle Replacement Part

ALOMEJOR
ALOMEJORX6UT8MYRAN
0.00 X 0.00 X 0.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
yanmeerA 9.65

Features

?EXCELLENT WORKMANSHIP?This gear is made of high quality nylon material, durable, not easy to deform, and can be used at ease.

?BETTER CONTROL?This gear can help you control your products better, with fine workmanship and long service life.

?PORTABLE DESIGN?This gear is small in size, light in weight, portable and very convenient.

?IMPROVE THE CONTROL PERFORMANCE?This gear can improve the control performance of the product and help repair expensive equipment.

?TIME AND LABOR SAVING?This gear is easy to install and requires no complicated operation, saving time and labor.

Worm Wheel, 10:1 Bronze Worm Gear With Metal Worm Set Worm Gear For Industrial Robot Parts

VIKYE
VIKYENU0B36C1HI
0.00 X 0.00 X 0.00 Inches
0.11 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Vikye-H 9.58

Features

[Unique Design] - The transmission structure of worm shaft is simple, compact, small volume and light weight.

[Premium Material] - The worm is made of metal and the worm wheel is made of bronze, which has a long service life.

[Worm Wheel] - If you need more torsion or slower output speed, you can use it to replace the standard 4: 1 worm gear for Zhouyu worm gear box.Similarly, the equipment reduces the chance of reverse drive to almost 0.

[Specification] - The worm gear is mounted on a 4.7 mm Daxle diameter. The worm is mounted on a 6mm or 4.7mm Dshaped shaft.

[After-Sale Service] -- Good day.We offers a variety range of novelty items to you. every effort to provide customers with satisfactory service.If you have ANY questions, please email us and BELIEVE us, we will reply you soon.

#TOP11

Ajax Scientific Me213-0001S Plastic Gear Worm, 1.3Cm Diameter X 3.3Cm Length, Large, Blue (Pack Of 10)

AJAX SCIENTIFIC
ME213-0001S
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Gear worm

Made of colored plastic

Available in blue color

Available in size large

Measures 1.3-centimeters diameter by 3.3-centimeters length

#TOP12

Ajax Scientific - Me213-0000S Plastic Gear Worm, 0.82Cm Diameter X 2.46Cm Length, Small, Red (Pack Of 10)

AJAX SCIENTIFIC
ME213-0000S
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Gear worm

Made of colored plastic

Available in red color

Available in size small

Measures 0.82-centimeters diameter by 2.46-centimeters length

Cnbtr 4Mm Bore Hole Diameter Brass Gear Shaft With 60 T Wheel 0.5 Modulus Set Drive Gear Box Shaft

CNBTR
M6180801080
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CNBTR (FBM Arrive in 20-25 days ,FBA 2-3days ) 9.81

Features

Set include one 0.5 modulus 4MM Hole Dia brass gear shaft and one 60 T brass worm gear wheel.

The transmission structure of worm shaft is simple, compact, small volume and light weight.

Shaft Z1=1, turn a round of gear T, can get a large transmission ratio, generally in the power transmission, the transmission ratio I=10-80, like big transmission ratio, if use with gear transmission, will need to take the multi-stage transmission.

High quality material selection, carefully processing create high quality product.

Made of brass, long time service.

#TOP14

Uxcell 20Pcs Plastic Gears 18 Teeth Model 182A Reduction Gear Plastic Worm Gears For Rc Car Robot Motor

UXCELL
A18041000UX0234
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
uxcell 9.95

Features

Feature - 100% Brand new and .Good accessories for Vehicle or remote control,Provides a convenient choice for your DIY project

Specification - Plastic Gears Model 182A, 18 Theeth, 0.5 Modulus, 10mm Outer diameter, 5mm Thickness, 2mm Hole Diameter

Application - Plastic Crown Gears suit for a science DIY projects such as rc model car, model electric robot and windmill, education such as displaying how gear rates work, and any other family small motor DIY project.

More Choose - Our store have the most complete specs gears shown in the following description, which can meet your DIY needs.

Package Content - 20pcs Plastic Gears 18 Teeth Model 182A Reduction Gear Plastic Worm Gears for RC Car Robot Motor

Andantex R3103 Anglgear Right Angle Bevel Gear Drive, Universal Mounting, Two Output Shafts, 3 Flanges, Inch, 3/8"Shaft Diameter, 1:1 Ratio, 34Hp At 1750Rpm

ANDANTEX
R3103
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Made in USA

Carburized case hardened "Gleason Coniflex" bevel gears, AGMA quality class 9

Compact precision machined aluminum housing coated with a chemical film

Stainless Steel 416 precision ground shafts supported by 2 Ball Bearings

Grease lubricated for life and bearings sealed with Buna-N seals

Andantex R3100 Anglgear Right Angle Bevel Gear Drive, Universal Mounting, Two Output Shafts, 2 Flanges, Inch, 3/8" Shaft Diameter, 1:1 Ratio, 34 Hp At 1750Rpm

ANDANTEX
R3100
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Made in USA

Carburized case hardened "Gleason Coniflex" bevel gears, AGMA quality class 9

Compact precision machined aluminum housing coated with a chemical film

Stainless Steel 416 precision ground shafts supported by 2 Ball Bearings

Grease lubricated for life and bearings sealed with Buna-N seals

Harfington 1.0 Modulus 25 Teeth 6Mm Inner Hole Tapered Bevel Gear 1:1 Plastic Miter Gear With M5 Fixing Hole And 2Pcs M5 Set Screws

HARFINGTON
HTA221019HH0533
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HARFINGTON 9.90

Features

Size - Modulus: 1.0, Teeth Number: 25, Height: 15.16mm / 0.6inch, Outer Dia: 26.4mm / 1.04inch, Inner Dia: 6mm / 0.24inch, Step Height: 8mm / 0.31inch, Step Dia: 20mm / 0.79inch, Effective Tooth Length: 6mm / 0.24inch

Material - Made of quality plastic, not easy to wear, is durable, and has lasting performance. This gear is an good industrial replacement accessory.

Feature - The contact between the gears is firm, ensuring the machine's normal operation and good bearing capacity.

Application - Used widely in conveying, hardware, agricultural equipment, printing machinery, automotive applications, mechanical transmission, etc.

Note - Please confirm whether the size and number of teeth are suitable for your equipment before purchasing. 1:1 bevel gear (can only be matched with 1:1, can not be matched with gears with other modules and T numbers)

Worm Gear Set 1.5M-20T 20:1 Ratio 1.5 Mod Carbon Steel Rod Shaft 20Teeth Brass Gear Wheel Reduce Transmission Part (Rod-8Mm Bore, Gear-10Mm)

BSTAUTOMATION
20:1RATIO
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
BSTAUTOMATION 0.00

Features

Rod Shaft made by 45# carbon steel,Worm Gear made by Brass

Rod Shaft from 8-15mm,20Teeth Gear from 8-15mm

Center Distance:For 1:20 set is 27.50mm

Used to decelerate the small motor and change the transmission direction. It can be applied for industrial robot spare parts.

Package Include 1pcs Rod Shaft+1pcs Worm Gear

Harfington Worm Gear Wheel Brass 1 Modulus 20T 10:1 Reduction Rate Right Rotate Drive Gear Box Shaft For Small Motor

HARFINGTON
HTA220706HH0531
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HARFINGTON 9.91

Features

Size - Modulus: 1; Gear Teeth: 20; Outer Diameter: 23mm / 0.9"; Inner Diameter:8mm / 0.32"; Direction of Rotation: Right, Reduction rate: 10 : 1.

Material - The worm gear wheel is made of brass material, not easy to wear and tear, durable, and can last for a long time.

Feature - The worm gear wheel is compact, small volume, and light weight, it is easy to install and use, and the transmission process is smooth.

Application - It is used to decelerate the small motor and change the transmission direction. It can be applied to small motor products.

Package Content - 1pcs x brass gear wheel.

Harfington Worm Gear Set Brass 0.5 Modulus 20T 20:1 Reduction Rate 3Mm Hole Diameter Right Rotate Drive Gear Box Wheel Shaft Kits For Small Motor

HARFINGTON
HTA220706HH0529
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HARFINGTON 9.91

Features

Size - Modulus: 0.5; Outer Diameter: 6.9mm Gear Shaft, 11.4mm Gear Wheel; Inner Diameter: 3mm Gear Shaft, 4mm Gear Wheel; Direction of Rotation: Right, Reduction rate: 20 : 1, Z1=1.

Material - The set is made of brass material, not easy to wear and tear, durable, and can last for a long time.

Feature - The gear wheel shaft set is compact, small volume, and light weight, it is easy to install and use, and the transmission process is smooth.

Application - It is used to decelerate the small motor and change the transmission direction. It can be applied to small motor products.

Package Content - 1pcs x brass gear wheel and 1pcs x brass gear shaft.

Harfington 1.0 Modulus 20 Teeth 5Mm Inner Hole Tapered Bevel Gear 1:1 Plastic Miter Gear With M5 Fixing Hole And 2Pcs M5 Set Screws

HARFINGTON
HTA221019HH0529
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HARFINGTON 9.90

Features

Size - Modulus: 1.0, Teeth Number: 15, Height: 13.95mm / 0.55inch, Outer Dia: 21.4mm / 0.84inch, Inner Dia: 5mm / 0.2inch, Step Height: 8mm / 0.31inch, Step Dia: 16mm / 0.63inch, Effective Tooth Length: 5mm / 0.2inch

Material - Made of quality plastic, not easy to wear, is durable, and has lasting performance. This gear is an good industrial replacement accessory.

Feature - The contact between the gears is firm, ensuring the machine's normal operation and good bearing capacity.

Application - Used widely in conveying, hardware, agricultural equipment, printing machinery, automotive applications, mechanical transmission, etc.

Note - Please confirm whether the size and number of teeth are suitable for your equipment before purchasing. 1:1 bevel gear (can only be matched with 1:1, can not be matched with gears with other modules and T numbers)

Top 10 mechanical worm gears Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Cnbtr 6
Harfington 4
Andantex 3
Ajax Scientific 2
Alomejor 1
Bstautomation 1
Pgfun 1
Uxcell 1
Vevor 1
Vikye 1

Top 10 mechanical worm gears Brands Pie Chart


We've carried out a comprehensive analysis of 321 reviews on mechanical worm gears, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select mechanical worm gears priced around $34.90, with top brands including urban worm, cnbtr, harfington, engino, vikye, ajax scientific, winegard and laziro and bstautomation

Our team of expert editors reviewed these high-quality items and handpicked the top 21 mechanical worm gears for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include urban worm company, cnbtr (fbm arrive in 20-25 days ,fba 2-3days ), harfington, engino store, vikye-h, amazon.com and lianxing-us and bstautomation .

We are dedicated to assisting our users in finding the right gears Products based on their needs, saving them considerable time when choosing which mechanical worm gears to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.