6304ZZ Ball Bearings C3 ABEC3 Shielded Low Noise for Electric Motors Inner Diameter 20mm Outer Diameter 52mm Width 15mm 100 Pack Wholesale Premium Quality

Bulk 100x 6304ZZ C3 ABEC-3 Low-Noise Ball Bearings
✔️ 20x52x15 mm; double shields; C3 clearance; Mobil Polyrex EM grease

This 100-pack of 6304ZZ shielded ball bearings is engineered for electric motor applications, delivering quiet operation, reliable ABEC-3 precision, and robust protection. Perfect for DIY projects, motor repairs, and professional assemblies where consistent performance matters.

✅ 20x52x15 mm (ID x OD x W) overall 20x52x15 mm dimensions
✅ ABEC-3 precision rating with P6 tolerance for reliable rotation
✅ C3 radial clearance accommodates thermal expansion during use
✅ Double metal shields (ZZ) provide dust/moisture protection, maintenance-free
✅ Pre-lubricated with Mobil Polyrex EM grease for long life
✅ Pack of 100 pieces for bulk projects and replacements

💡 What is a ball bearing used for in electric motors and mechanical systems?

Here’s a handy, technical answer for common use cases. - Handy for reducing friction and wear in rotating shafts for smooth operation - Keeps motion predictable at moderate to high speeds with minimal play - Sealed shields protect against dust and moisture, extending bearing life - ABEC-3 rated bearings offer precise, steady rotation with lower noise levels