20mm ID x x 42mm OD Ball Bearing 20x42x12mm

9104K Open Ball Bearing✔️ 20x42x12mm - Chrome Steel - High-Speed Open Design The 9104K is a high-speed single-row deep groove ball bearing with an open design for maximum RPM potential. Made from chrome steel, it’s a great fit for applications where airflow or re-lubrication access is needed, like electric motors, gearboxes, or precision tools. ✅ Size: 20mm ID x 42mm OD x 12mm Width✅ Dimensions (Inch): 0.78" x 1.65" x 0.47"✅ Type: Single-Row Deep Groove Ball Bearing✅ Material: Chrome Steel✅ Closure: Open (no seals or shields)✅ Lubrication: Requires external or manual lubrication✅ Dynamic Load Rating: 5,600 N✅ Static Load Rating: 2,840 N✅ Max Speed: 24,000 RPM✅ Quantity: 1 Bearing✅ SKU: 6004Bearing 💡 When should you choose an open bearing over a sealed or shielded one? Open bearings are ideal for high RPM environments where minimal drag is critical. They’re preferred when regular re-lubrication is possible and contamination risk is low. Commonly used in clean environments like lab