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  • Smallparts Spur Gear, 20 Degree Pressure Angle, Polyoxymethylene, Inch, 20 Pitch
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Smallparts Spur Gear, 20 Degree Pressure Angle, Polyoxymethylene, Inch, 20 Pitch

Available in multiple versions

3 customer reviews

Price: $3.14 - $35.85
Product Specifications
Brand Name Small Parts
Material Type Polyoxymethylene_(POM)
Pitch 20
UNSPSC Code 31171707

This polyoxymethylene spur gear with 20-degree pressure angle (PA) and a di... Read full product description


Currently showing 1-20 of 52 Next »
Pitch Diameter String Face Width Outside Diameter Bore Diameter Number of Teeth Part Number Price Quantity
   
20 inches 3/8 inches 0.850 inches 5/16 inches 15 B000FMU8W8
In Stock (1)
$12.04
Prime Eligible
20 inches 3/8 inches 0.900 inches 5/16 inches 16 B000FMU8ZK
In Stock (1)
$12.13
Prime Eligible
20 inches 3/8 inches 1.100 inches 3/8 inches 20 B000FMU97M
In Stock (2)
$12.10
Prime Eligible
20 inches 3/8 inches 1.400 inches 3/8 inches 26 B000FMU9KO
In Stock (1)
$13.07
Prime Eligible
20 inches 3/8 inches 2.300 inches 3/8 inches 46 B000FMU9X6
In Stock (2)
$14.91
Prime Eligible
20 inches 3/8 inches 2.600 inches 3/8 inches 50 B000FMUA58
Temporarily out of stock. Order now and we'll deliver when available.
$15.28
Prime Eligible
20 inches Unk inches 1.850 inches 0.250 inches 35 B000FMUMWE
In Stock (1)
$17.45
Prime Eligible
20 inches Unk inches 2.100 inches 0.312 inches 42 B000FMUN6Y
In Stock (1)
$26.10
Prime Eligible
20 inches Unk inches 2.400 inches 0.312 inches 46 B000FMUNA0
In Stock (1)
$19.52
Prime Eligible
20 inches Unk inches 2.300 inches 0.312 inches 46 B000FMUNAK
In Stock (1)
$28.43
Prime Eligible
20 inches Unk inches 0.750 inches 0.187 inches 13 B000FMUP5S
Temporarily out of stock. Order now and we'll deliver when available.
$11.68
Prime Eligible
20 inches Unk inches 0.800 inches 0.187 inches 14 B000FMUP9E
In Stock (1)
$13.78
Prime Eligible
20 inches Unk inches 0.950 inches 0.187 inches 17 B000FMUPHG
In Stock (3)
$15.54
Prime Eligible
20 inches Unk inches 1.000 inches 0.187 inches 18 B000FMUPL2
In Stock (1)
$11.58
Prime Eligible
20 inches Unk inches 1.250 inches 0.187 inches 23 B000FMUPYE
In Stock (1)
$15.50
Prime Eligible
20 inches Unk inches 1.500 inches 0.250 inches 28 B000FMUQAC
In Stock (2)
$6.50
Prime Eligible
20 inches 3/8 inches 1.600 inches 3/8 inches 30 B000FMW3NA
In Stock (3)
$13.35
Prime Eligible
20 inches 3/8 inches 1.700 inches 3/8 inches 32 B000FMW3OO
In Stock (2)
$4.38
Prime Eligible
20 inches 3/8 inches 1.100 inches 3/8 inches 22 B000FMW3S0
In Stock (1)
$21.34
Prime Eligible
20 inches 3/8 inches 1.250 inches 3/8 inches 23 B000FMW3TE
Temporarily out of stock. Order now and we'll deliver when available.
$12.73
Prime Eligible
Currently showing 1-20 of 52 Next »
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Product Features

  • Transmits torque between parallel shafts to provide rotational power to another part of a motorized system
  • Pressure angle of 20 degrees for a lower contact ratio between gears, resulting in higher load capacity than smaller pressure angles
  • Diametral pitch of 20 for applications requiring a balance between transferring torque and controlling changes in speed and direction of rotation with precision
  • Polyoxymethylene for quiet operation, low friction and moisture absorption, and high resistance to heat and abrasion

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B007NO6UF0
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (3 customer reviews)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

This polyoxymethylene spur gear with 20-degree pressure angle (PA) and a diametral pitch (DP) of 20 transmits torque between parallel shafts to provide rotational power to another part of a motorized system. It has a 20-degree pressure angle for lower contact ratio between gears, resulting in higher load capacity than smaller pressure angles, and a 20-diametral pitch for applications requiring a balance between transferring torque and controlling changes in speed and direction of rotation with precision. This spur gear, which can mesh only with spur gears that have the same pressure angle and diametral pitch, is made of polyoxymethylene for quiet operation, low friction and moisture absorption, and high resistance to heat and abrasion. This SmallParts spur gear is suitable for use in a variety of commercial and industrial applications, such as construction equipment, aeronautics, conveyors, and manufacturing equipment, among others.

Spur gears, the most common gear type, have a circular or cylindrical shape with teeth bordering the outer perimeter and are used for transmitting rotational torque and motion between parallel rotating shafts. A spur gear's pressure angle (PA), diametral pitch (also called DP or pitch), and its material are important factors to consider when purchasing. Gears come in several types for use in different power transmission configurations and for different applications, including bevel and miter gears (for rotating shafts perpendicular to each other), change gears (to increase or decrease torque and speed), helical gears (for high rates of rotational speed), internal gears (where one gear is nested inside the other), rack and pinion gears (for turning rotational motion into linear motion), and worm gears (for perpendicular shafts in tight spaces and quiet operation). Gears are suitable for use in the agriculture, automotive, construction, mining, and packaging industries, and can be found in a variety of machines, including bicycles, automobiles, and elevators, among others.


Customer Questions & Answers

Customer Reviews

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Most Helpful Customer Reviews

2 of 2 people found the following review helpful By TT on March 15, 2011
Bore Diameter: 0.187Face Width: UnkPitch Diameter String: 20Number of Teeth: 16Outside Diameter: 0.900 Verified Purchase
Great product and good price (when I bought it 2 weeks ago). Since then the price has almost doubled, what gives. At this new price, I guess I will shop somewhere else.
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1 of 1 people found the following review helpful By Farmboy on October 16, 2010
Bore Diameter: 5/16Face Width: 3/8Pitch Diameter String: 20Number of Teeth: 15Outside Diameter: 0.850 Verified Purchase
The item is just as described. It's made by Stock Gear Inc. and resold by Small Parts Inc. The face width is 3/8 inch. The gear I.D. is 5/16 inch. The hub diameter is about 11/16 inch and the hub projects about 3/8 inch beyond the gear on one side only. The hub is plain and must be drilled for a pin or set screw or else press fit to a shaft.

I bought 5 of them at 20 cents each. Three days later, they are $3.52 each! Same with many other gears I bought. What's up with that?
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By Rufus4176 on February 19, 2015
Bore Diameter: 3/8Face Width: 3/8Pitch Diameter String: 20Number of Teeth: 70Outside Diameter: 3.600 Verified Purchase
Great gears for daughter's school project
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