The Plastic Worm Gear 18mm Dia 30mm Length 6mm ID, Mod 1.6 tooth profile, this worm gear is a distinct transmission component from the spur gears and gear racks covered separately where spur gears transmit rotation between parallel shafts and rack-and-pinion converts rotation to linear motion, a worm gear meshes with a worm wheel at a 90° shaft angle, enabling compact right-angle drives with high reduction ratios in a single stage.
The dc worm gear motor pairing with this plastic worm gear exploits worm drive’s most useful property — self-locking behavior. When a worm meshes with a worm wheel, the helical thread angle means the worm can rotate the wheel, but the wheel cannot back-drive the worm due to friction geometry at the mesh — the output shaft stays locked in position when the motor stops, without any additional brake or locking mechanism. This 18mm worm gear plastic’s Mod 1.6 specification means it pairs with a matching Mod 1.6 worm wheel gear for correct tooth mesh engagement.
A worm gear for robotics and DIY builds, plastic worm gears have lower torque limits compared to metal variants and wear faster under sustained high-load applications — plastic suits intermittent duty cycles in science projects and light robotics, not continuous heavy-load drives. Available from StemVolt, offering quality robotics parts and DIY kits at competitive prices.
Related Products:
- Checkout Plastic Pulley Wheel Small 25mm
Features:
- Self-locking output — wheel cannot back-drive worm when motor stops
- Mod 1.6 tooth profile for correct Mod 1.6 worm wheel pairing
- 6mm inner bore mounts directly on standard DC motor shafts
- Yellow plastic lightweight for science project and robotics builds
Technical Specifications:
Applications:
- Worm Gear used for DC motor self-locking lift mechanism build
- College project uses worm gear for 90° shaft right-angle drive demo
- DIY robot dc worm gear motor for self-locking joint control
- Mini winch uses 18mm worm gear plastic for load-holding mechanism
Package Includes:
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1 x Plastic Worm Gear 18 mm Dia 30mm Length 6mm ID
Dibyendu Sharma –
Highly recommended for DIY projects
Narayan Rane –
Protective packing ensured safety
Shiva Chouhan –
Hassle-free delivery experience
Rangaswamy Kalyanasundaram –
This worm gear worked perfectly in my DIY robotics project. The product arrived safely packed, quality was excellent, and customer support was helpful throughout the purchase process.
Suresh khanna –
Genuine quality product