10-Pack 4x7 Bearing Open 4x7x2mm Miniature

Ball Bearings 4x7x2mm
✔️ Lot of 10 Chrome Steel Open Bearings

These 4x7x2mm open ball bearings are made from high-strength chrome steel and built for speed, up to 85,000 RPM. Whether you're into RC cars, drones, or other compact mechanical setups, this pack of 10 gives you smooth rotation, low friction, and solid reliability in one of the most widely used micro sizes.

✅ Size: 4mm ID x 7mm OD x 2mm Wide
✅ Type: Deep Groove Ball Bearings
✅ Closures: Open (no seals)
✅ Material: Chrome Steel
✅ Max Speed: 85,000 RPM
✅ Quantity: 10 Bearings (packed in 1 plastic tube)

💡 What’s the benefit of using open micro ball bearings like these?
These are ideal for high-speed, low-load jobs with easy access to relubrication:

• Perfect for RC cars, micro motors, and hobby drones

• Less rolling resistance at ultra-high speeds

• Easy to inspect, clean, and re-grease

• Compatible with KOYO ML4007, NSK MR74, and NMB L-740

Grab this 10-pack if you need smooth, high-RPM micro bearings that can keep up with your favorite fast-paced builds.