How many pieces are in the 40 Tooth Gears (Pack of 25)?

40 Tooth Gears (Pack of 25) contains 25 pieces.

What age is the 40 Tooth Gears (Pack of 25) recommended for?

This set is recommended for ages 18+.

When was the 40 Tooth Gears (Pack of 25) released?

40 Tooth Gears (Pack of 25) was released in 2002.

🏛 Technic

Set #970627

40 Tooth Gears (Pack of 25)

The 40 Tooth Gears (Pack of 25) is a fundamental component for any serious LEGO Technic builder.

🏆 Best For: Technic builders of all ages ⏱ 0.25 hr build 🧩 25 pcs

★★★★☆ 4.0

A must-have for serious Technic builders, this gear pack provides essential components for advanced mechanisms. While not a 'set' in the traditional sense, the quantity and utility of the gears are highly valued by the Technic community.

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📝 Our Take

The 40 Tooth Gears (Pack of 25) is a fundamental component for any serious LEGO Technic builder. These gears are essential for creating complex mechanisms and drivetrains, enabling builders to explore advanced engineering principles in their models.

This pack is perfect for Technic enthusiasts, robotics hobbyists, and educators. Whether you're designing a remote-controlled vehicle, a complex automated machine, or simply experimenting with gear ratios, this set provides the necessary parts to bring your creations to life.

Skip this if you're primarily interested in standard LEGO System building. This is a highly specialized Technic component. If you're not familiar with Technic building, start with a smaller Technic set before investing in bulk gears.

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What gear ratios can be achieved using this gear in combination with other Technic gears? How does this gear compare to other gear sizes in the Technic system? Where can I find instructions for building simple gear mechanisms? What are some common uses for 40-tooth gears in LEGO Technic models?

🧱 Building Experience

🧩

Pieces

⏱

0.25h

Build Time

📊

Beginner

Difficulty

Build Highlights:

Experimenting with gear ratios
Creating custom transmissions
Building mechanical systems
Understanding torque and speed

📈 Investment Analysis

→ Price stable

Investment Grade

⏳ Active

As a basic Technic component, the investment potential of the 40 Tooth Gears (Pack of 25) is limited. While these gears are essential for Technic building, they are not particularly rare or exclusive. The value lies in their utility for MOCs and repairs. Demand is steady among Technic builders, but significant appreciation is unlikely. Investors should focus on complete sets with unique parts or minifigures for better returns.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

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This gear pack is not directly comparable to complete LEGO sets but is an essential component for enhancing existing Technic models. Unlike sets with instructions and a specific build, this pack offers versatility for custom creations. Builders might choose this over buying individual gears to ensure they have a sufficient supply for various projects.

📦 Full Parts Inventory - 1 unique parts • 25 total pieces

Technic Gear 40 T...

Part #: 3649 25× Light Gray

This set provides a bulk supply of 40-tooth gears, ideal for Technic builders needing multiple gears for complex mechanisms. The light gray color is standard and blends well with various Technic builds.