General description The 150Pcs MR63ZZ Miniature Deep Groove Ball Bearing is designed for a variety of applications including electric motors, models, instrumentation, electrical and communication equipment, as well as fitness equipment. This standard model meets the requirements of most customers, ensuring a smooth feel, low noise, and a long service life. Technical specifications Model: MR63ZZ Size: 3 x 6 x 2 mm Material: Bearing steel Color: Silver Package Contents: 150 x Bearings Measurement allowed error: +/- 1-3 cm