The Plastic Double Sided Gear Rack 82Teeth 380mm Length 14mm Width, with 4mm tooth pitch, made from durable yellow plastic. This gear rack enables rack-and-pinion linear motion — a pinion gear (round toothed gear) rolls along the rack’s teeth converting its rotational motion into precise straight-line travel, making this gear rack 82 teeth the component that turns a motor’s spin into controlled forward and backward linear movement across its 380mm span.
The plastic gear rack’s “double sided” design places teeth on both faces of the rack body — this allows a pinion gear to engage from either side depending on the mechanism’s spatial constraints, or enables two pinion gears to drive the rack simultaneously from opposite sides for more balanced force distribution in wider carriage systems. This rack and pinion gear component’s 4mm pitch means each full tooth-to-tooth spacing is 4mm, so a 20-tooth pinion gear advances the carriage exactly 80mm per full revolution, a useful figure for calculating motor steps-to-travel in servo or stepper-driven DIY gear rack builds.
A diy gear rack uses plastic construction rather than metal — plastic racks are lighter, quieter, and lower cost, but have lower load capacity and wear faster under continuous heavy-load cycles compared to aluminum or steel rack alternatives. Available from StemVolt, this unit is suitable for engineers working on linear motion mechanisms and practical rack-and-pinion DIY robotics projects.
Related Products:
- Checkout 80 PCS Plastic Gear Set
Features:
- Double sided teeth allow pinion engagement from either face
- 380mm length provides meaningful linear travel range for DIY builds
- Durable yellow plastic — lightweight and low noise in operation
- Straight rack tooth profile suits standard spur gear pinions
Technical Specifications:
| Specification | Details |
|---|---|
| Number of Teeth | 82 Teeth |
| Tooth Profile | Straight Rack |
| Length | 380mm |
| Height | 14mm |
| Width | 20mm |
| Teeth Pitch | 4mm |
| Material | Durable Plastic |
| Color | Yellow |
Applications:
- Gear Rack used for Arduino servo robotic gripper linear slide build
- College project uses gear rack 82 teeth for rack and pinion demo
- DIY plotter uses plastic gear rack for India pen carriage linear drive
- Camera slider uses rack and pinion gear for smooth dolly movement
- Drawer mechanism uses diy gear rack for motorized slide extension
Package Includes:
-
1 x Plastic Double Sided Gear Rack 82Teeth 380mm Length 14mm Width














Udaiy Singh –
Happy with the purchase
Jaskirat Singh –
Customer support was helpful
Vineet Somani –
Excellent for linear motion projects
Arindam Roy –
Shipment arrived safely
Raghavan Srinivasan –
100% genuine product quality
Krutarth Singh Jhala –
Same day dispatch service
Neeraj Kishore –
Used this rack in a school robotics project and the results were excellent. The product arrived safely, matched the specifications perfectly, and proved to be a reliable component for STEM, automation, and DIY engineering projects.