12 best mechanical worm gears

Product description

WORM GEAR, 24 DP, 14.5 PA, 72 TEETH, RH, BRONZE

• Auto & Truck Maintenance
• Country of manufacture: Germany
• Manufacturer: GATES
• Package dimension: 18.0"L x 18.0"W x 21.0"H

User questions & answers

Question:	Does the gear 1038 have a set screw
Answer:	NO SET SCREW

Product description

WORM, 12 DP, 14.5 PA, 1. PD, RH, STEEL/UNHARDENED

• Compatible with the Lincoln design plugs
• Couplers are available in sleeve type only
• Package Length: 4.13"
• Package Width: 3.56"

User questions & answers

Question:	Can this worm be case hardened to extend it's life? Will distortion (from heating to harden it) present problems
Answer:	Yes, you can harden it.

Product description

WORM GEAR, 12 DP, 14.5 PA, 20 TEETH, RH, CAST IRON

• Mating worm is 12 DP, SINGLE THREAD
• O/P Rating (LB-IN): 70.0 pounds per inch
• Country of Origin: UNITED STATES
• Item Package weight : 0.2 pounds

User questions & answers

Question:	Which worm can I use for this wormgear
Answer:	Usually if you look at gears they are matched in general catalog. Gears and pitch are the key
Question:	how would i mount these on a shaft
Answer:	This answer would vary greatly depending on application. We would recommend contacting Boston Gear Customer Service @ 800-825-6544.

Product description

Feature:

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

2. The worm is made of metal and the worm wheel is made of bronze, which has a long service life.

3. 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.

4. Similarly, the equipment reduces the chance of reverse drive to almost 0.

5. The worm gear is mounted on a 4.7 mm D-axle diameter. The worm is mounted on a 6mm or 4.7mm D-shaped shaft.

Specification:

Item Type: 10:1 Worm Wheel

Gear ratio: 10: 1

Material: For SAE 841 bronze worm gear; metal worm 

Note: The worm gear is mounted on a 4.7 mm D-axle diameter. The worm is mounted on a 6mm or 4.7mm D-shaped shaft.

Package List:

1 X Worm Wheel1 X Worm 

Note:

The worm gear is mounted on a 4.7 mm D-axle diameter. The worm is mounted on a 6mm or 4.7mm D-shaped shaft.

• The transmission structure of worm shaft is simple, compact, small volume and light weight.
• The worm is made of metal and the worm wheel is made of bronze, which has a long service life.
• 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.
• The worm gear is mounted on a 4.7 mm D-axle diameter. The worm is mounted on a 6mm or 4.7mm D-shaped shaft.

User questions & answers

Question:	why doesnt the chrome worm portion have locking set screw
Answer:	Mine were loose in the bag.

Product description

Specifications:

Material: Brass

Color: Yellow

Brand name: CNBTR

Weight: 58g



Brass Worm Wheel:

Modulus:0.5

Teeth: 60

Teeth Dia: 31.2MM

Height: 12MM/0.47 Inch

Outer Diameter: 31MM/1.22 Inch

Hole Diameter: 6MM/0.24Inch

Step Size: 20x7MM/0.79x0.27 Inch ( Dia x H)

Overall Size: 12x31x6MM/0.47x1.22x0.24 Inch( H x OD x ID)

Weight: 46g



Brass Worn Gear Shaft:

Modulus:0.5

Height: 20MM/0.79 Inch

Outer Diameter: 11.7MM/0.46 Inch

Inner Diameter: 6MM/0.24 Inch

Size: 20x11.7x6MM/0.79x0.46x0.24 inch( H x OD x ID)

Weight: 12g



Features:

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

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

3.Worm Shaft Z1=1, turn a round of worm gear teeth, 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.

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

5.Made of brass, long time service.



Package Content:

1 x Brass Worm Gear Shaft

1 x Brass Worm Wheel

2 x Screws



The unique MPN label on each inner package, which confirm it passed the quality

inspection and it is genuine item sold from our shop. Please offer it to us

• Set include one 0.5 modulus 6MM Hole Dia brass worm gear shaft and one 60 teeth brass worm gear wheel.
• The transmission structure of worm shaft is simple, compact, small volume and light weight.
• Worm Shaft Z1=1, turn a round of worm gear teeth, 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.

Product description

75 Type Plastic Crown Gear Single Double Reduction Gear Worm Gear Description: Material: plastic Type: spindle gear, crown gear, single gear, double gear, worn gear, bevel gear, belt pulley, belt, connecting rack, axle sleeve, tee collar Quantity: 75 Feature: 75 type ideal for DIY science and small production, product design and mechanical model Package included: 19X Double Reduction Gear(each one) 12X Single Reduction Gear(each on) 11X Crow Gear(each one) 2x Worm Gear(each one) 9X Spindle Gear(each one) 7X Belt Pulley(each one) 6X Axle Sleeve(each one) 5X Belt(each one) 2X Connection Rack(each one) 1X Tee Collar

• 75 Type Plastic Crown Gear Single Double Reduction Gear Worm Gear Description: Material: plastic Type: spindle gear, crown gear, single gear, double gear, worn gear, bevel gear, belt pulley, belt, connecting rack, axle sleeve, tee collar Quantity: 75 Feature: 75 type ideal for DIY science and small production, product design and mechanical model Package included: 19X Double Reduction Gear(each one) 12X Single Reduction Gear(each on) 11X Crow Gear(each one) 2x Worm Gear(each one) 9X Spindle Gear(each one) 7X Belt Pulley(each one) 6X Axle Sleeve(each one) 5X Belt(each one) 2X Connection Rack(each one) 1X Tee Collar

User questions & answers

Question:	What are the diameters
Answer:	The Diameters vary from 30mm to 5mm there might have been a few larger gears in the mix but i purchased it for my nephews robotics project so I only saw it very briefly
Question:	iam looking for 24mm and 19mm diameter gears are these included
Answer:	I found one that was a little over 19mm and two that were a little over 24mm OUTSIDE diameter. My guess is that the pitch circle diameters are 19mm and 24mm, respectively, but I have no good way to measure. Hope this helps.
Question:	I'm looking for a gear wheel that has a diameter of 3.5 cm or 1.5 inches, is that included in this set
Answer:	https://www.amazon.com/dp/B01E1LEAQ8 There is a second large circle is 3.8cm you can refer to
Question:	what size shaft do I need for the gear to fit
Answer:	Fits well around a paperclip or simalarly sized nail.

Product features

GREEN FABWOOD 75 Type Plastic Crown Gear Single Double Reduction Gear Worm Gear (Original Version)

75 Type Plastic Crown Gear Single Double Reduction Gear Worm Gear Description: Material:plastic Type:spindle gear,crown gear,sigle gear,double gear,worn gear,bevel gear,belt pulley,belt,connecting rack,axle sleeve,tee collar Quantity:75 Feature: 75 type ideal for DIY science and small production, product design and mechanical model Package included: 19X Double Reduction Gear(each one) 12X Single Reduction Gear(each on) 11X Crow Gear(each one) 2x Worm Gear(each one) 9X Spindle Gear(each one) 7X Belt Pulley(each one) 6X Axle Sleeve(each one) 5X Belt(each one) 2X Connectiong Rack(each one) 1X Tee Collar

Product description

Worm Gear Compatible with Troy Bilt 917-04861/917-0528A/918-0528 20T

User questions & answers

Question:	Will it fit 3I234Q
Answer:	I don't know but it fit mine Troy-Bilt Storm 2620 Snow Blower perfectly.

Product description

Rated Voltage: DC 12V

Reduction Ratio: 1:101

No-Load Speed: 60RPM

Rated Torque: 7Kg.cm

Rated Current: 1400/1320mA (Positive Rotation / Negative Rotation)

Error: ±10%

D Shaped Output Shaft Size: 8*15mm (0.31" x 0.59") (D*L)

Gearbox Size: 58.1 x 40.11 x 36mm (2.29" x 1.58" x 1.42”) (L*W*H)

Motor Size: 31 x 57.2mm (1.22" x 2.25") (D*L)

Mounting Hole Size: M4 (not included)

Main Material: Metal, Electronic component

Wire Length : 20cm



Packages:

- 1 x Worm Gear Motor



What does motor torque mean?

The standard torque of the motor is 10kg.cm. If the belt wheel is used for transmission, the belt wheel has a radius of 1cm, and the output tension of the belt is 10kg.

If the belt radius is 2cm, the output tension of the belt is 5kg, and so on.



PLEASE NOTE:

1.Use tolerance: Pay attention to the use of voltage and current range, otherwise the motor performance and motor life will decline.

2.Handling motors: Gently, as far as possible the use of motor shell part.

3.Motor wiring: Red lead to the positive electrode, black lead to the negative pole, if reversed, the motor rotation in the opposite direction.

4.Overload: As far as possible within the specified load range, prohibit motor blocking or close to the stall state for too long time to runs. Otherwise, the motor will burn out.

5.Motor storage:

   -- Storage temperature: 0℃ - 40℃;

   -- Storage humidity: 15% -90% RH;

   -- Avoid placing in high temperature, high humidity and corrosive gases.

6.Motor use temperature: 0℃ - 70℃

• 【High Torque & Lower Noise】: Long carbon brush high life, high precision gear design, small size, high torque, low noise, high efficiency.
• 【Positive-Negative Rotation】This type is miniature High Torque Electric Worm Gear DC Motor, which can change shaft rotation direction while the wiring positive andnegative be changed.
• 【Self-Locking】: Turbo worm geared motor with self-lock, that is, in the case of motor without electric, the output axis is fixed, self-lock.
• 【Versatile】: The reducer output shaft arranged vertically with the motor shaft, whole motor output is relatively short,can be widely used in various of occasions that require special installation size.
• 【Application】: Boat, Car, Fan, Home Appliance, BBQ, Machinery and equipment, automation instruments, electric curtain, stage lighting, counter, faucet, safe, wet towel dispenser, vending machines, automatic monitoring and other modern art.

User questions & answers

Question:	what type of power supply would recommend ? going from 120v ac to 12v dc
Answer:	Alitov ac/dc adapter, model WT-5000, 120 ac input, 12 v dc output,
Question:	Can this be made to run forward and reverse
Answer:	Yes it can run in reverse, simply wire it backwards, red wire to ground - and black wire to positive+
Question:	Can I use a 12v 0.5a power supply with this motor
Answer:	You should use at least a 4Amp power supply; otherwise, you will burn it

Product description

Specifications:

Material: Brass

Color: Yellow

Brand name: CNBTR

Modulus: 0.5

Weight: 15g



Size of worm wheel:

Teeth: 20

Teeth Dia: 11.2MM

Height: 12MM/0.47 Inch

Outer Diameter: 11MM/0.43 Inch

Hole Diameter: 4MM/0.16 Inch

Step Size: 9x7MM/0.35x0.27 Inch ( Dia x H)

Overall Size: 12x11x4MM/0.47x0.39x0.12 Inch( H x OD x ID)



Size of worm gear shaft:

Height: 20MM/0.79 Inch

Outer Diameter: 9.7MM/0.38 Inch

Inner Diameter: 5MM/0.2 Inch

Size: 20x9.7x5MM/0.79x0.38x0.2 Inch( H x OD x ID)



Features:

1.Set include one 0.5 modulus 5MM Hole Dia brass worm gear shaft and one 20 teeth brass worm gear wheel.

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

3.Worm Shaft Z1=1, turn a round of worm gear teeth, 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.

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

5.Made of brass, long time service.



Package Content:

1 x Brass Worm Gear Shaft

1 x Brass Worm Wheel

2 x Screws



The unique MPN label on each inner package, which confirm it passed the quality

inspection and it is genuine item sold from our shop. Please offer it to us.

• Set include one 0.5 modulus 5MM Hole Dia brass worm gear shaft and one 20 teeth brass worm gear wheel.
• The transmission structure of worm shaft is simple, compact, small volume and light weight.
• Worm Shaft Z1=1, turn a round of worm gear teeth, 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.

User questions & answers

Question:	What is the Actual gear ratio of this product
Answer:	The 20 tooth version is a 20:1 ratio. For one turn of the worm you'll turn the pinion one tooth. So a 40 tooth pinion will give you a 40:1 ratio.
Question:	What is the correct distance between the axis of the worm and the worm gear for proper mesh
Answer:	I found that 10 mm separation distance was a good fit. My initial calculations set it at 10.5, but this produced too much binding. Definitely not an expert, but this is what I found to be true.

• Set include one 0.5 modulus 5MM Hole Dia brass worm gear shaft and one 40 teeth brass worm gear wheel.
• The transmission structure of worm shaft is simple, compact, small volume and light weight.
• Worm Shaft Z1=1, turn a round of worm gear teeth, 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.

User questions & answers

Question:

Hi there, how much shear load can the teeth handle? Thanks

Answer:

They're made of brass. The shear strength of brass is about 32000 psi. This is about the same as aluminum 6061-t6, less than half that of 303 stainless steel, and about three times that of nylon or acetal. In practice with these small shafts, the set screws slip way before the teeth shear. Pinning them would be tricky. Brass worm/wheel sets are generally hard to find and expensive. Last year these were much more expensive elsewhere. The 60 tooth version makes a nice one degree indexer.

Product features

Specifications

Material: Brass

Modulus:0.5

Reduction Ratio: 1:40

Brand name: CNBTR

Weight: 28g

Worm Gear Wheel

Teeth:40

Teeth Dia: 21.2MM

Height: 12MM/0.47 Inch

Outer Diameter: 21MM/0.82 Inch

Hole Diameter: 5MM/0.2 Inch

Step Size: 15x7MM/0.59x0.27 Inch (Dia x H)

Overall Size: 12x21x5MM/0.47x0.82x0.2Inch(H x OD x ID)

Worm Gear Shaft

Height: 20MM/0.79 Inch

Outer Diameter: 9.7MM/0.38 Inch

Inner Diameter: 5MM/0.2 Inch

Size: 20x9.7x5MM/0.79x0.38x0.2 Inch(H x OD x ID)

Package Content

1 x Brass Worm Gear Shaft

1 x Brass Worm Gear Wheel

2 x Screws

Product description

Specification:

Item Type: Worm Gear

Gear Ratio: 20: 1

Material: Bronze worm gear wheel, metal shaft

Package List:

1 x Worm Gear Wheel

1 x Shaft

Note:

Worm gear wheel mounted on 4.7mm D-shaft diameter, worm gear shasft mounted on 6mm or 4.7mm D-type shaft

• Can replace 4: 1 worm gear, provide more torsion or slower output speed
• The device reduces the chance of reverse drive to almost 0
• The product is made of bronze worm gear wheel and metal shaft, durable and long service life
• Simple structure, easy to install and remove
• High quality and great processing, good accessories for industrial robot

• 100% Brand new and high quality.
• Material:Plastic. Quantity:75pcs
• 75 kinds of parts and accessories in just one package, which makes it a perfect choice for laboratories, science education, and DIY models.
• The plastic includes crown gear, single gear, double gear, worm gear, belts and other transmission parts. And all the display pictures were taken in kind.

User questions & answers

Question:	What size shaft will fit these gears
Answer:	All I can say is , I was looking for one gear that fit a 1/16" shaft And I found it in this collection. They have some a bit bigger but can't say what the size was!
Question:	i need a double gear with 22 teeth at 14mm diameter and 12teeth at 10mm do you have please
Answer:	Hi thanks for your question. This is link of the size and specification of each gear → https://mega.nz/#F!BdpFVaZA!QzSstICCpv1_ZAt5UIaAPQ Any other question please feel free to contact us through email [email protected]. We will always happy to help you out. Thank you!
Question:	What size hole is in the gears? Are they all the same
Answer:	they vary from.0625 or 1/16 to .115 or 2.875mm that not any standard everything is +or- .003 there is no standard that they match,the plus or minus .003 is the test on my parts that i have
Question:	Can I just buy the long straight racks in the package
Answer:	Hello friend, sorry we don't sell the rack separately, but like the other customers said: you might find it from other seller on Amazon.

Product features

Package included:

19*Double Reduction Gear -- 16102B, 18102A, 20082B, 20102B, 22082A , 22102B, 24102B, 24122B, 26082B, 28102B, 30162A, 30122B, 32082B, 34102B, 38082B, 40102B, 46082A, 48102B, 50102A

12*Single Reduction Gear -- 202A, 242A, 282A, 302A, 303A, 302.5A, 322A, 362A, 402A, 422A, 482A, 562A

11*Crown Gear -- C152A, C203A, C282A, C282.5A, C303A, C322A, C20082A, C28082B, C28102.5B, C30102B, C40102B

9*Spindle Gear -- 80.8A, 81A, 81.5A, 82A, 102A, 122A, 132A, 142A, 182A

7*Belt Pulley -- 122B,102B, 62A, 132A, 16.82A, 242AB

6*Axle Sleeve -- 2A(2pcs), 2.5A(2pcs), 3A(2pcs)

5*Rubber Band

2*Worm Gear -- W6*62A, W6*82A

2*Connecting Rack

1*Tee Collar -- 3T-2A-2B

1*Bevel gear -- S162A

Model Note:

1. The first two digits encoding: the number of teeth of the 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