Factory Direct Supply Deep Groove Ball Bearing 20x27x4 (6704) – Premium Motor Bearing for Air Purification & More
High-precision deep groove ball bearing with dimensions 20x27x4 (6704), engineered for smooth rotation and ultra-low friction in demanding applications. Crafted from premium chrome steel (GCr15) for exceptional durability and heat resistance, hardened to HRC 60-65 for extended service life. Precision-ground raceways and polished steel balls ensure quiet operation, ideal for air purification equipment, small motors, pumps, and industrial machinery. Factory-direct pricing guarantees unbeatable value for bulk buyers, with strict QC for consistent performance. Sealed or open variants available (contact for options), ready for high-speed or light-load scenarios. Global wholesale support – order any quantity with fast logistics. Upgrade your equipment with reliable, cost-effective bearings.