These retailers are best for high-quality, standardized gears with detailed technical specifications and CAD models.
“For smaller stuff try the Stock Drive online store... Hey I just went to Boston Gear and they link to the catalogs through the literature section.” Practical Machinist · 11 years ago buy gears online
“McMaster is a little pricey but has almost anything you could ever need, plus free CAD.” Reddit · r/engineering · 3 years ago For general mechanical and industrial needs, is the
: Widely considered the best for value , offering near-wholesale prices on a massive catalog of automotive gears and parts. Expert Insights on Sourcing : A solid choice
For general mechanical and industrial needs, is the industry standard due to its legendary website speed and massive selection. Users from Reddit and EEVblog consistently praise its "pinnacle" online catalog, which allows you to find parts even when you don't know their exact names. Top Professional & Industrial Suppliers
: Excellent for high-performance transmission and differential gears. Expert Insights on Sourcing
: A solid choice for standardized internal and spur gears . It's often the cheapest option, though you may need to search specifically for brands like Boston Gear to ensure quality.