Miniature Deep Groove Ball Bearing 4x10x4mm MR104 2RS Double Rubber Sealed Pre Lubricated Chrome Steel High Speed Low Noise ABEC 1 P0 Z2 Precision 10 Pack for RC Cars Drones Hobby Projects

Miniature 4x10x4mm MR104-2RS Deep Groove Bearings - 10-Pack
✔️ I.D. 4mm, O.D. 10mm, thickness 4mm; sealed, pre-lubricated

These are precision miniature deep groove ball bearings sized 4x10x4 mm. They’re sealed on both sides and pre-lubricated for immediate use. Ideal for RC cars, drones, small robotics, clockwork, and other compact mechanisms requiring reliable, quiet rotation.

✅ I.D. 4 mm, O.D. 10 mm, thickness 4 mm
✅ Chrome steel GCr15 for durability under heavy loads
✅ Sealed on both sides (2RS) and pre-lubricated with grease
✅ ABEC 1 (P0) tolerance, low noise, high speed
✅ High temperature resistance and load handling for hobby applications

💡 What is a pillow block bearing used for? Handy, general-purpose support for rotating shafts in compact machines.

- pillow block bearing use cases for shaft support in small automation, gearboxes, drones - sealed ball bearing design reduces maintenance and grease leakage - handy for RC cars, drones, clocks, lab equipment, and other small machinery