5mm Bore Bearing With 21.5mm White Plastic Tire 5x21.5x7mm Steel Ball Bearing Integrated Tire Assembly For Small Hobby RC Parts And Precision Mechanisms Suitable For RC Cars Drones Gimbals And Robotics Projects

5mm Bore Ball Bearing with 21.5mm White Tire, 7mm Wide
✔️ 5mm bore; 21.5mm OD; 7mm wide; white tire for small assemblies

This compact bearing merges a steel ball bearing with a white plastic tire, offering a durable, low-friction rotation for small wheels, guides, and micro-motion projects. Ideal for hobby robotics, model builds, and compact mechanisms that need precise bore alignment.

✅ 5mm bore; 21.5mm outer diameter; 7mm width
✅ White plastic tire bonded to steel ball bearing for durability
✅ Pack: 1 bearing; metric size 5x21.5x7mm

💡 What is a small bore ball bearing used for?

It’s a handy, compact option for precise motion in tight spaces. - Small bore bearings are handy for compact wheels and linear guides in hobby robotics. - They provide smooth rotation under light loads and fit into small assemblies easily. - Plastic tires paired with steel balls reduce weight and cost in micro devices.