6004 Deep-Groove Ball Bearing single-row open, pressed-steel cage, normal clearance, metric 20x42x12 mm, max 18,000 rpm, 9,400 N dynamic / 5,000 N static, 1-piece pack

6004 deep-groove ball bearing single-row open unit
✔️ 1-piece unit 20x42x12 mm; max 18,000 rpm; 9,400/5,000 N

This is a single open deep-groove ball bearing (6004) in metric size for high-speed radial and axial applications. Commonly used in gearboxes, compressors, pumps, drives, printing and textile machines where regular lubrication is applied.

✅ Bore: 20 mm, OD: 42 mm, Width: 12 mm
✅ Single-row deep-groove geometry for radial and axial loads
✅ Open design for in-place lubrication; not sealed
✅ Pressed steel cage to space balls evenly and reduce noise
✅ Normal internal clearance; max speed 18,000 rpm
✅ Dynamic load 9,400 N; static load 5,000 N; metric sizing

💡 What is a deep-groove ball bearing used for in high-speed motors and gearboxes? A handy explanation and quick guide: - Deep-groove ball bearings support combined radial and axial loads at high rpm and keep shaft runout low. - They work well when you need high running accuracy in gearboxes, motor shafts, compressors, and pumps. - Choose open bearings like this 6004 when periodic lubrication is possible; consider sealed ball bearing or ceramic options for contaminated or maintenance-free setups. - For linear motion, compare to a linear slide unit; for shock loads, look at tapered or spherical roller bearings.