Plastic Spur Gear 40mm 36 Teeth For School Project

The Plastic Spur Gear 40mm 36 Teeth is a yellow plastic spur gear with 40mm outer diameter, 36 teeth, and 6mm shaft bore, suited for school project gear trains, DIY robotics, and mechanical project builds. This Spur Gear occupies the mid-range position in StemVolt’s spur gear lineup — larger than the 25mm and 27mm pinion gears covered separately, and smaller than the 55mm and 80mm driven output gears, making it versatile enough to function as either a driving pinion for larger gears or a driven gear receiving drive from a smaller pinion

The gears for mechanical projects use case of this 40mm gear makes it particularly suitable for school science and engineering demonstrations where the gear ratio relationship needs to be visible and easy to measure at 36 teeth, halving output speed and more than doubling output torque, a ratio clearly observable in classroom gear train builds. This plastic spur gear’s 6mm shaft bore accepts standard DC motor shafts and 6mm axles used across StemVolt’s motor and robot chassis range.

With all gears for projects in this plastic lineup, the gear module must match between this 40mm gear and any mating gear for correct tooth engagement — and plastic construction limits it to moderate loads, not sustained heavy-torque drives. Available from StemVolt, offering quality robotics parts and DIY kits at competitive prices. This plastic spur gear 40mm is ideal for DIY projects, robotics applications, educational models, and small mechanical transmission systems.

Related Products:

• Checkout Plastic Spur Gear 80mm 56 Teeth 

Features:

• Mid-range 40mm diameter suits both pinion and driven gear roles
• 6mm bore fits standard DC motor shafts and 6mm robot axles
• Yellow plastic lightweight construction for school project builds
• Spur tooth profile for smooth parallel shaft power transmission

Technical Specifications:

Applications:

• Spur Gear used for school project visible gear ratio demonstration
• College project uses gears for mechanical projects for ratio demo
• Science kit uses plastic spur gear for gear machnical model build
• For DIY robot gears for projects for mid-stage reduction drive
• Motorized model uses spur gear for robotics for intermediate drive

Package Includes:

• 1 × Plastic Spur Gear 40mm 36 Teeth