Boston Gear YA20 Spur Gear Set
The Boston Gear YA20 Spur Gear Set is positioned as a best-in-class value-focused choice for general-purpose spur gears and gear sets, offering broad availability and reliable performance for light- to medium-duty industrial applications. It outcompetes premium precision options on cost and inventory accessibility while providing better long-term serviceability than some economy offerings, making it a practical choice when budget and uptime for spur gears and gear sets are primary concerns.
Precision fit
Low-noise whirr
Precision fit
Low-noise whirr
Review Summary
"Buyers report robust construction and accurate tooth profiles suitable for industrial use; common notes praise reliability but mention occasional shipping or packaging issues and a premium price versus generic parts."
Long-life steel
Affordable alloy/steel spur and mating pinion set suited for light to medium duty applications
Long-life steel
Affordable alloy/steel spur and mating pinion set suited for light to medium duty applications
Time-Saving Convenience
Skill Development & Mastery
The Boston Gear YA20 Spur Gear Set is positioned as a best-in-class value-focused choice for general-purpose spur gears and gear sets, offering broad availability and reliable performance for light- to medium-duty industrial applications. It outcompetes premium precision options on cost and inventory accessibility while providing better long-term serviceability than some economy offerings, making it a practical choice when budget and uptime for spur gears and gear sets are primary concerns.
Precision fit
Low-noise whirr
Long-life steel
Affordable alloy/steel spur and mating pinion set suited for light to medium duty applications
Standard involute tooth profile compatible with common shaft sizes and module/pitch systems
Precision fit
Low-noise whirr
Long-life steel
Affordable alloy/steel spur and mating pinion set suited for light to medium duty applications
Standard involute tooth profile compatible with common shaft sizes and module/pitch systems
KHK Stock Gears SS2-40 Ground Spur Gear
KHK Stock Gears SS2-40 Ground Spur Gear is a market leader in precision ground spur gears, delivering superior surface finish, low backlash and consistent tooth geometry that suits high-speed or low-noise applications in the spur gears and gear sets category. While typically higher in unit cost than Boston Gear or Browning, its technical advantages—especially in repeatability and minimal runout—make it the preferred option where accuracy and quiet operation justify the premium.
Ground finish
Micron accuracy
Ground finish
Micron accuracy
Review Summary
"Users praise exceptional precision and smooth operation from the ground finish, making these a favorite for high-accuracy applications; most feedback notes the higher cost but consistent quality."
Mirror-like teeth
Hardened and ground tooth surfaces deliver high accuracy, low noise and smooth meshing
Mirror-like teeth
Hardened and ground tooth surfaces deliver high accuracy, low noise and smooth meshing
Skill Development & Mastery
Time-Saving Convenience
KHK Stock Gears SS2-40 Ground Spur Gear is a market leader in precision ground spur gears, delivering superior surface finish, low backlash and consistent tooth geometry that suits high-speed or low-noise applications in the spur gears and gear sets category. While typically higher in unit cost than Boston Gear or Browning, its technical advantages—especially in repeatability and minimal runout—make it the preferred option where accuracy and quiet operation justify the premium.
Ground finish
Micron accuracy
Mirror-like teeth
Hardened and ground tooth surfaces deliver high accuracy, low noise and smooth meshing
Available in multiple modules and face widths to match metric stock gear standards
Ground finish
Micron accuracy
Mirror-like teeth
Hardened and ground tooth surfaces deliver high accuracy, low noise and smooth meshing
Available in multiple modules and face widths to match metric stock gear standards
$80-160 CAD
Martin S1236 Steel Spur Gear
Martin S1236 Steel Spur Gear is known for heavy-duty construction and torque capacity among spur gears and gear sets, offering robust material selection and heat treatment that favors long service life in demanding power-transmission roles. It balances a competitive price point against specialty precision brands like KHK and SDP by delivering better load endurance than economy parts while remaining more affordable than the highest-tolerance precision sets.
High-torque grip
Heat-treated core
High-torque grip
Heat-treated core
Review Summary
"Reviewers find the steel construction durable with reliable tooth geometry and good interchangeability for power-transmission tasks; some mention lead times and a higher price point than economy options."
Industrial tough
Solid steel construction engineered for robust torque transmission and long life
Industrial tough
Solid steel construction engineered for robust torque transmission and long life
Increased Safety & Security
Time-Saving Convenience
Skill Development & Mastery
Martin S1236 Steel Spur Gear is known for heavy-duty construction and torque capacity among spur gears and gear sets, offering robust material selection and heat treatment that favors long service life in demanding power-transmission roles. It balances a competitive price point against specialty precision brands like KHK and SDP by delivering better load endurance than economy parts while remaining more affordable than the highest-tolerance precision sets.
High-torque grip
Heat-treated core
Industrial tough
Solid steel construction engineered for robust torque transmission and long life
Bored and finished for standard shaft fits with options for keyways and set screws
High-torque grip
Heat-treated core
Industrial tough
Solid steel construction engineered for robust torque transmission and long life
Bored and finished for standard shaft fits with options for keyways and set screws
$120-250 CAD
Browning NSS1236 External Tooth Spur Gear
Browning NSS1236 External Tooth Spur Gear is a practical market offering focused on compatibility and easy replacement within standard power-transmission systems for spur gears and gear sets, providing cost-effective external-tooth options that integrate readily into existing machinery. It typically costs less than premium precision sets and offers broader fitment than highly specialized gears, making it a strong choice when maintainability and spare-part commonality are priorities over maximum precision.
Exact tooth count
Quick retrofit
Exact tooth count
Quick retrofit
Review Summary
"Customers report dependable performance for standard power-transmission needs and acceptable machining tolerances; several reviews note it is not as precision-ground as specialty brands and packaging can vary."
Smooth engagement
External-tooth design for straightforward retrofit and OEM replacement applications
Smooth engagement
External-tooth design for straightforward retrofit and OEM replacement applications
Time-Saving Convenience
Increased Safety & Security
Browning NSS1236 External Tooth Spur Gear is a practical market offering focused on compatibility and easy replacement within standard power-transmission systems for spur gears and gear sets, providing cost-effective external-tooth options that integrate readily into existing machinery. It typically costs less than premium precision sets and offers broader fitment than highly specialized gears, making it a strong choice when maintainability and spare-part commonality are priorities over maximum precision.
Exact tooth count
Quick retrofit
Smooth engagement
External-tooth design for straightforward retrofit and OEM replacement applications
Multiple bore and hub options simplify installation into existing machinery
Exact tooth count
Quick retrofit
Smooth engagement
External-tooth design for straightforward retrofit and OEM replacement applications
Multiple bore and hub options simplify installation into existing machinery
$100-220 CAD
Stock Drive Products A 1Y 3MYZ06020 Precision Gear Set
Stock Drive Products A 1Y 3MYZ06020 Precision Gear Set is a market leader for high-precision spur gears and gear sets, engineered to tight tolerances for motion-control, aerospace and medical applications where repeatability and minimal backlash are critical. Although it commands a higher price than general-purpose brands like Boston Gear and Browning, it delivers unmatched technical performance and engineering support that can reduce system-level costs in precision applications.
Tight tolerances
Plug-and-play fit
Tight tolerances
Plug-and-play fit
Review Summary
"Users consistently praise very high precision, tight tolerances and excellent surface finish, making this set popular for prototyping and precision assemblies; complaints are rare and mainly about premium cost or limited stock."
Feather-smooth run
Precision-machined matched gear and pinion set for minimal backlash and consistent meshing
Feather-smooth run
Precision-machined matched gear and pinion set for minimal backlash and consistent meshing
Skill Development & Mastery
Time-Saving Convenience
Stock Drive Products A 1Y 3MYZ06020 Precision Gear Set is a market leader for high-precision spur gears and gear sets, engineered to tight tolerances for motion-control, aerospace and medical applications where repeatability and minimal backlash are critical. Although it commands a higher price than general-purpose brands like Boston Gear and Browning, it delivers unmatched technical performance and engineering support that can reduce system-level costs in precision applications.
Tight tolerances
Plug-and-play fit
Feather-smooth run
Precision-machined matched gear and pinion set for minimal backlash and consistent meshing
Supplied with close tolerances and available in a variety of materials and finishes
Tight tolerances
Plug-and-play fit
Feather-smooth run
Precision-machined matched gear and pinion set for minimal backlash and consistent meshing
Supplied with close tolerances and available in a variety of materials and finishes
$180-360 CAD