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Best Change Gears - Buying Guide

Last Updated: 04/17/2019

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  #1

Boston Gear GA25 Plain Change Gear, 14.5 Degree Pressure Angle, 20 Pitch, 0.625" Bore, 25 Teeth, Steel

Model: GA25   |    Mpn: GA25   |    Ean: 0781711100486   |    PartNumber: GA25   |   Asin: B004N62S1Q

CHANGE GEAR, 20 DP, 14 1/2 PA, 25 TEETH, STEEL

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 1.9 x 2.2 x 2.7 inches (4.8 x 5.6 x 6.9 cm)

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  #2

Boston Gear GB27 Plain Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 27 Teeth, Steel

Model: GB27   |    Mpn: GB27   |    Ean: 0781711101148   |    PartNumber: GB27   |   Asin: B004N62SGG

CHANGE GEAR, 16 DP, 14 1/2 PA, 27 TEETH, STEEL

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 2.1 x 2.1 x 2.6 inches (5.3 x 5.3 x 6.6 cm)

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  #3

Boston Gear S2442 Spur Gear, 14.5 Pressure Angle, Steel, Inch, 24 Pitch, 0.500" Bore, 1.833" OD, 0.250" Face Width, 42 Teeth

Model: S2442   |    Mpn: S2442   |    Ean: 0781711096468   |    PartNumber: S2442   |   Asin: B004N6323E

The Boston Gear low carbon steel spur gear with 14.5-degree pressure angle (PA) and a diametral pitch (DP) of 24 transmits torque between parallel shafts to provide rotational power to another part of a motorized system. It has a 14.5-degree pressure angle for a higher contact ratio between gears than larger pressure angles, resulting in quieter operation, and a 24-diametral pitch for applications for applications where controlling changes in speed and direction of rotation with precision is more important than transferring torque. This spur gear, which can mesh only with spur gears that have the same pressure angle and diametral pitch, is made of low carbon steel (.2 percent carbon) for applications where the hardness and strength of higher levels of carbon are not needed to transmit torque and motion. This Boston Gear 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.

Boston Gear manufactures a variety of gear drives, variable speed drives, clutches, and the components that comprise these systems including sprockets and bearings. Their manufacturing designs, production, and inspection meet International Organization for Standardization (ISO) standards for quality assurance. The company, founded in 1877, is headquartered in Charlotte, NC.

Features

  • Transmits torque between parallel shafts to provide rotational power to another part of a motorized system
  • Pressure angle of 14.5 degrees for a higher contact ratio between gears, resulting in quieter operation than larger pressure angles
  • Diametral pitch of 24 for applications where controlling changes in speed and direction of rotation with precision is more important than transferring torque
  • Low carbon steel (.2 percent carbon) for applications where the hardness and strength of higher levels of carbon are not needed to transmit torque and motion
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Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 2 x 2.1 x 2.6 inches (5.1 x 5.3 x 6.6 cm)

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  #4

Boston Leather Boston - OPEN TOP STREAMLIGHT STRION FLASHLIGHT HOLDER - 5575-2

 Ean: 0192375126000   |    PartNumber: 5575-2   |   Asin: B078BX8MMP

Features

  • Boston Leather Boston - OPEN TOP STREAMLIGHT STRION FLASHLIGHT HOLDER Finish: Hi-Gloss
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Brand: Boston Leather   |   Manufacturer: BOSTON LEATHER

Package Dimensions: 1 x 5 x 7 inches (2.5 x 12.7 x 17.8 cm)

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  #5

Boston Gear GA48 Plain Change Gear, 14.5 Degree Pressure Angle, 20 Pitch, 0.625" Bore, 48 Teeth, Steel

Model: GA48   |    Mpn: GA48   |    Ean: 0781711100943   |    PartNumber: GA48   |   Asin: B004N62SC0

CHANGE GEAR, 20 DP, 14 1/2 PA, 48 TEETH, STEEL

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 1.9 x 2 x 2.7 inches (4.8 x 5.1 x 6.9 cm)

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  #6

Co-Rect Boston Shaker with Powder Coating, 28 oz, Red

Model: CS100PRED   |    Mpn: CS100PRED   |    Ean: 0044381081005   |    PartNumber: CS100PRED   |   Asin: B00WS87BF4

Co-Rect Products has been a high quality manufacturer of bar supplies since 1957. We have the largest in-stock bar supply inventory in the United States and we have been an A.S.I and P.P.A.I. approved vendor for over 20 years.

Features

  • Stainless steel
  • Red powder coating
  • 28 oz. capacity
  • Must have tool for person and professional bartenders
  • Comes in multiple colors
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Brand: Co-Rect Products   |   Manufacturer: Co-Rect

Item Dimensions: 7 x 3.5 x 3.5 inches (17.8 x 8.9 x 8.9 cm)   |   Package Dimensions: 3.8 x 4 x 7.4 inches (9.7 x 10.2 x 18.8 cm)

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  #7

Premium Vials 2OBRAMBSP12FBA-ZT 2 Oz (60 ml) Amber Boston Round Glass Bottle with Black Fine Mist Sprayer - 12 pcs (Pack of 12)

Model: 2OBRAMBSP12FBA-ZT   |    Mpn: 2OBRAMBSP12FBA-ZT   |    PartNumber: 2OBRAMBSP12FBA-ZT   |   Asin: B071Z8MNT4

Boston rounds glass bottles have a rounded shoulder design that has proven over the years to be one of the most reliable for containing almost any liquid or solid. Use Amber Boston rounds for light-sensitive materials. Amber glass bottles provide a very professional display and are perfect for storing materials which are sensitive to degradation from light. Oftentimes used to store essential oils, they are also ideal for storing chemistry and laboratory chemicals, perfumes and amp; colognes for travel and as a dispenser for medicine cabinet items. This Boston round bottle comes with a fine mist sprayer.

Features

  • Manufacturer name - Premium Vials
  • Capacity: 2 ounce (60 ml)
  • Dimensions(bottle): 1.5 width by 3.75 height
  • Cap finish: 20-400
  • Available Colors: CLEAR, AMBER, BLUE
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Brand: Premium Vials   |   Manufacturer: PremiumVials

Package Dimensions: 4.5 x 5.1 x 6.6 inches (11.4 x 13.0 x 16.8 cm)

First Available: 2017-05-17

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  #8

AIRHEAD Boston Valve, 2 pk.

Model: AHBV-2   |    Mpn: 18-5929   |    Ean: 0737826026791   |    PartNumber: 18-5929   |   Asin: B002XZ75XU

AIRHEAD BOSTON VALVE - Always Carry a Spare! The 2 Boston valves have different thread patterns. One is sure to fit the thread pattern of your inflatable, no matter what brand. They have square bases, which are much easier to turn than round, especially with wet hands. Bright red, so they re easy to find.

Features

  • Made using the highest quality materials
  • Tested for durability
  • Great fun for all ages
  • Always Carry a Spare!
  • The 2 Boston valves have different thread patterns. One is sure to fit the thread pattern of your inflatable, no matter what brand
  • They have square bases, which are much easier to turn than round, especially with wet hands
  • Bright red, so they're easy to find
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Brand: Airhead   |   Manufacturer: AIRHEAD WATERSPORTS

Item Dimensions: 5 x 4 x 2 inches (12.7 x 10.2 x 5.1 cm)   |   Package Dimensions: 0.6 x 0.6 x 3.8 inches (1.5 x 1.5 x 9.7 cm)

First Available: 2010-01-04

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  #9

Boston Gear GB127A Web with Lightening Holes Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 127 Teeth, Cast Iron

 Ean: 0781711111147   |    PartNumber: GB127A   |   Asin: B004N62UT6

CHANGE GEAR, 16 DP, 14 1/2 PA, 127 TEETH, CAST IRON

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 3.5 x 8.8 x 8.8 inches (8.9 x 22.4 x 22.4 cm)

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  #10

Boston Gear GB36 Plain Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 36 Teeth, Steel

Model: GB36   |    Mpn: GB36   |    Ean: 0781711101322   |    PartNumber: GB36   |   Asin: B004N62SK2

CHANGE GEAR, 16 DP, 14 1/2 PA, 36 TEETH, STEEL

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 2 x 2.1 x 2.6 inches (5.1 x 5.3 x 6.6 cm)

First Available: 2017-11-25

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  #11

Boston Gear GB24 Plain Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 24 Teeth, Steel

Model: GB24   |    Mpn: GB24   |    Ean: 0781711101087   |    PartNumber: GB24   |   Asin: B004N62SF2

CHANGE GEAR, 16 DP, 14 1/2 PA, 24 TEETH, STEEL

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 2 x 2.3 x 2.7 inches (5.1 x 5.8 x 6.9 cm)

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  #12

Boston Gear GB72B Plain Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 72 Teeth, Cast Iron

Model: GB72B   |    Mpn: GB72B   |    Ean: 0781711110041   |    PartNumber: GB72B   |   Asin: B004N62U6Y

CHANGE GEAR, 16 DP, 14 1/2 PA, 72 TEETH, CAST IRON

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 4.3 x 6 x 6.1 inches (10.9 x 15.2 x 15.5 cm)

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  #13

Boston Gear GA46 Plain Change Gear, 14.5 Degree Pressure Angle, 20 Pitch, 0.625" Bore, 46 Teeth, Steel

Model: GA46   |    Mpn: GA46   |    Ean: 0781711100905   |    PartNumber: GA46   |   Asin: B004N62SB6

CHANGE GEAR, 20 DP, 14 1/2 PA, 46 TEETH, STEEL

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 1.9 x 2.1 x 2.6 inches (4.8 x 5.3 x 6.6 cm)

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  #14

Boston Gear GB20 Plain Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 20 Teeth, Steel

Model: GB20   |    Mpn: GB20   |    Ean: 0781711101001   |    PartNumber: GB20   |   Asin: B004N62SDE

CHANGE GEAR, 16 DP, 14 1/2 PA, 20 TEETH, STEEL

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Item Dimensions: 0.24 x 0.31 x 0.31 inches (0.6 x 0.8 x 0.8 cm)   |   Package Dimensions: 2 x 2.1 x 2.6 inches (5.1 x 5.3 x 6.6 cm)

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  #15

Boston Gear GA42 Plain Change Gear, 14.5 Degree Pressure Angle, 20 Pitch, 0.625" Bore, 42 Teeth, Steel

Model: GA42   |    Mpn: GA42   |    Ean: 0781711100820   |    PartNumber: GA42   |   Asin: B004N62S9I

CHANGE GEAR, 20 DP, 14 1/2 PA, 42 TEETH, STEEL

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 2.1 x 2.2 x 2.6 inches (5.3 x 5.6 x 6.6 cm)

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  #16

Boston Gear GA40 Plain Change Gear, 14.5 Degree Pressure Angle, 20 Pitch, 0.625" Bore, 40 Teeth, Steel

Model: GA40   |    Mpn: GA40   |    Ean: 0781711100783   |    PartNumber: GA40   |   Asin: B004N62S8E

CHANGE GEAR, 20 DP, 14 1/2 PA, 40 TEETH, STEEL

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 2 x 2.2 x 2.6 inches (5.1 x 5.6 x 6.6 cm)

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  #17

Boston Gear GB40 Plain Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 40 Teeth, Steel

Model: GB40   |    Mpn: GB40   |    Ean: 0781711101407   |    PartNumber: GB40   |   Asin: B004N62SM0

CHANGE GEAR, 16 DP, 14 1/2 PA, 40 TEETH, STEEL

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 4.2 x 4.2 x 4.3 inches (10.7 x 10.7 x 10.9 cm)

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  #18

Boston Gear GB107A Web with Lightening Holes Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 107 Teeth, Cast Iron

Model: GB107A   |    Mpn: GB107A   |    Ean: 0781711110744   |    PartNumber: GB107A   |   Asin: B004N62UL4

CHANGE GEAR, 16 DP, 14 1/2 PA, 107 TEETH, CAST IRON

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 3.3 x 7 x 7.1 inches (8.4 x 17.8 x 18.0 cm)

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  #19

Boston Gear GB92A Web with Lightening Holes Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 92 Teeth, Cast Iron

Model: GB92A   |    Mpn: GB92A   |    Ean: 0781711110447   |    PartNumber: GB92A   |   Asin: B004N62UEQ

CHANGE GEAR, 16 DP, 14 1/2 PA, 92 TEETH, CAST IRON

Features

Brand: Boston Gear   |   Manufacturer: Boston Gear

Package Dimensions: 3.4 x 6.9 x 7.1 inches (8.6 x 17.5 x 18.0 cm)

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Looking For Something Else? Search

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  2. Boston Gear GB27 Plain Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 27 Teeth, Ste...
  3. Boston Gear S2442 Spur Gear, 14.5 Pressure Angle, Steel, Inch, 24 Pitch, 0.500" Bore, 1.833" OD, 0.2...
  4. Boston Leather Boston - OPEN TOP STREAMLIGHT STRION FLASHLIGHT HOLDER - 5575-2
  5. Boston Gear GA48 Plain Change Gear, 14.5 Degree Pressure Angle, 20 Pitch, 0.625" Bore, 48 Teeth, Ste...
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  3. Boston Gear S2442 Spur Gear, 14.5 Pressure Angle, Steel, Inch, 24 Pitch, 0.500" Bore, 1.833" OD, 0.2...
  4. Boston Leather Boston - OPEN TOP STREAMLIGHT STRION FLASHLIGHT HOLDER - 5575-2
  5. Boston Gear GA48 Plain Change Gear, 14.5 Degree Pressure Angle, 20 Pitch, 0.625" Bore, 48 Teeth, Ste...
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Most Gifted

  1. Boston Gear GA25 Plain Change Gear, 14.5 Degree Pressure Angle, 20 Pitch, 0.625" Bore, 25 Teeth, Ste...
  2. Boston Gear GB27 Plain Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 27 Teeth, Ste...
  3. Boston Gear S2442 Spur Gear, 14.5 Pressure Angle, Steel, Inch, 24 Pitch, 0.500" Bore, 1.833" OD, 0.2...
  4. Boston Leather Boston - OPEN TOP STREAMLIGHT STRION FLASHLIGHT HOLDER - 5575-2
  5. Boston Gear GA48 Plain Change Gear, 14.5 Degree Pressure Angle, 20 Pitch, 0.625" Bore, 48 Teeth, Ste...
  6. Co-Rect Boston Shaker with Powder Coating, 28 oz, Red
  7. Premium Vials 2OBRAMBSP12FBA-ZT 2 Oz (60 ml) Amber Boston Round Glass Bottle with Black Fine Mist Sp...

Top Selling

  1. Boston Gear GA25 Plain Change Gear, 14.5 Degree Pressure Angle, 20 Pitch, 0.625" Bore, 25 Teeth, Ste...
  2. Boston Gear GB27 Plain Change Gear, 14.5 Degree Pressure Angle, 16 Pitch, 0.750" Bore, 27 Teeth, Ste...
  3. Boston Gear S2442 Spur Gear, 14.5 Pressure Angle, Steel, Inch, 24 Pitch, 0.500" Bore, 1.833" OD, 0.2...
  4. Boston Leather Boston - OPEN TOP STREAMLIGHT STRION FLASHLIGHT HOLDER - 5575-2
  5. Boston Gear GA48 Plain Change Gear, 14.5 Degree Pressure Angle, 20 Pitch, 0.625" Bore, 48 Teeth, Ste...
  6. Co-Rect Boston Shaker with Powder Coating, 28 oz, Red
  7. Premium Vials 2OBRAMBSP12FBA-ZT 2 Oz (60 ml) Amber Boston Round Glass Bottle with Black Fine Mist Sp...



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