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The Ball Caster 3PI N20 is a compact, low-friction support wheel designed for small robots, smart cars, and DIY robotics projects. It features a durable 304 stainless steel ball housed in a lightweight plastic casing, providing smooth omnidirectional movement while maintaining stability. Commonly mounted at the front or rear of two-wheel drive robots, this ball caster helps reduce friction and improves maneuverability during turns and directional changes.
Its compact design makes it an excellent choice for N20 gear motor-based robot chassis, line-following robots, obstacle-avoiding robots, and educational robotics platforms. Easy to install and highly durable, the Ball Caster 3PI N20 ensures reliable support for both hobbyists and professional robotics applications.
Features
Smooth 360° rolling for effortless movement
Durable 304 stainless steel ball for long-lasting performance
Lightweight plastic housing
Low-friction design for improved robot mobility
Easy to mount on most mini robot chassis
Ideal for N20 motor-based robots and smart car platforms
Specifications
Material: Plastic housing with 304 stainless steel ball
Ball Diameter: 12 mm
Overall Dimensions: 22 × 15 mm
Height: 15 mm
Mounting Hole Distance: 15 mm
Application: Mini robots, smart cars, DIY robotics, STEM projects, and educational robot kits.
FAQ
Will this ship from Manila?
Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.
Do you ship nationwide?
Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.
Can I get this on a school PO or class order?
Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.
Is this compatible with Arduino, ESP32, or Raspberry Pi?
Most parts work with common maker boards — check the description for specific pinout / voltage notes. If you're unsure, send us a message before ordering.
What's your return policy?
7-day inspection window for DOA units. Email proof of issue and we'll ship a replacement or refund. Used / installed parts are not returnable unless faulty.
Do you offer technical support?
Yes — questions land on our forum or via email, weekday or weekend. We've actually wired up most of what we sell.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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