34 kinds of rack and pinion gear
The 34-Piece Plastic Gear Assortment Kit is a comprehensive collection of gears, pulleys, racks, belts, worm gears, and shafts ranging from 8 to 56 teeth. This versatile DIY kit includes both single and double gears, bevel gears, large pulley wheels, gear racks, drive belts, and bushings — everything you need for building robots, mechanical projects, and motorized prototypes. Perfect for Arduino robotics, RC projects, DIY motors, gear reducers, and replacing broken parts in toys and small machines. An essential mechanical toolkit for makers, students, and hobbyists.
طقم تروس بلاستيكية متنوعة من 34 قطعة هو مجموعة شاملة من التروس والبكرات وقضبان التروس والأحزمة والتروس الحلزونية والمحاور بأعداد أسنان تتراوح من 8 إلى 56 سناً. يحتوي الطقم على تروس مفردة ومزدوجة، وتروس مخروطية، وعجلات بكرات كبيرة، وقضبان تروس، وأحزمة، وبيرنغات — كل ما تحتاجه لبناء الروبوتات والمشاريع الميكانيكية. مثالي لمشاريع Arduino والروبوتات وسيارات الـRC ومخفّضات السرعة، ولاستبدال القطع التالفة في الألعاب والآلات الصغيرة.
The 34-Piece Rack and Pinion Gear Assortment Kit is a must-have mechanical components collection for anyone building robots, DIY motorized projects, educational kits, or RC vehicles. With 34 different types of gears, pulleys, and accessories in a single package, this kit gives you the flexibility to design, prototype, and repair a wide range of mechanical systems without having to source individual parts.
The kit covers virtually every common gear type and configuration used in hobby robotics and small motorized projects:
- Spur gears in many sizes (from small 8-tooth pinions up to large 56-tooth gears)
- Single-layer and double-layer (compound) gears for building gear reduction trains
- Worm gears for high-reduction, self-locking drives
- Bevel gears for transferring motion at right angles
- Gear racks for converting rotary motion to linear motion (rack-and-pinion drives)
- Pulley wheels of various sizes for belt drives
- Drive belts (O-ring rubber belts) for connecting pulleys
- Plastic shafts and axles for mounting gears and pulleys
- Bushings and spacers for smooth rotation and proper alignment
All components are manufactured from durable plastic, making them lightweight, quiet in operation, and easy to cut or modify when needed. The plastic construction also means they're ideal for low-load applications typical of hobby motors, small servos, and educational robotics — and they're gentle on motor shafts.
Whether you're building a gear reduction box for a small motor, designing a rack-and-pinion steering mechanism for an RC car, creating a worm-drive turret, or just looking for replacement gears for a broken toy, this kit covers your needs in one purchase.
What's in the Kit
The kit includes 34 different types of plastic mechanical components, including but not limited to:
- Spur gears with tooth counts from 8 to 56 teeth
- Compound (two-layer) gears for multi-stage reduction
- Worm gears for high-reduction drives
- Bevel gears for 90° motion transfer
- Pulley wheels in multiple sizes (small to large)
- Linear gear rack for rack-and-pinion mechanisms
- Rubber drive belts / O-rings for pulley connections
- Plastic shafts and axles of various lengths
- Bushings, spacers, and small mounting hardware
The exact assortment may vary slightly from package to package, but all kits contain a comprehensive selection suitable for most DIY mechanical projects.
Specifications
- Total Pieces: 34 different types of gears and accessories
- Tooth Count Range: 8 to 56 teeth
- Material: Durable plastic (lightweight and quiet)
- Gear Types Included:
- Single spur gears
- Double (compound) gears
- Worm gears
- Bevel gears
- Gear racks
- Pulleys: Multiple sizes (small to large diameter)
- Belts: Rubber drive belts / O-rings
- Shafts: Plastic axles included
- Color: White / off-white plastic with small yellow components (as shown in image)
- Standard: Standard tooth profile
- Compatibility: Designed for low-torque hobby applications
Applications
- Robotics Projects – Build gear reduction systems for Arduino, ESP32, and Raspberry Pi robots
- DC Motor Reducers – Reduce motor speed and increase torque with gear trains
- RC Vehicles – Build rack-and-pinion steering, drive trains, and gearboxes
- Walking Robots – Mechanical linkages and joints for hobbyist robots
- Educational STEM Kits – Teach gear ratios, mechanical advantage, and motion transfer
- DIY Toys – Build wind-up cars, mechanical puzzles, and motorized models
- Replacement Parts – Repair broken toys, RC cars, small appliances, and electronic devices
- 3D-Printed Project Hybrids – Pair with 3D-printed parts for custom mechanisms
- Servo Modifications – Build custom servo gear trains
- Conveyor and Belt Systems – Pulley-and-belt motion drives
- Worm Drive Turrets – High-reduction, self-locking aiming systems
- Linear Actuators – Convert rotary motion to linear motion with rack-and-pinion
- School Science Projects – Demonstrate physics of gears and pulleys
- Animatronics – Create motion mechanisms for puppets and props
- Solar-Powered Mechanical Toys – Build low-power kinetic models