6004 Koyo Bearing Open Type Deep Groove Ball Bearing 20 Mm Inner Diameter 42 Mm Outer Diameter 12 Mm Width Steel Riveted Cage Round Bore C0 Internal Clearance

6004 KOYO Open Deep Groove Ball Bearing 20×42×12 mm
✔️ Single bearing, open type deep groove ball bearing, 20×42×12 mm

The KOYO 6004 Open Deep Groove Ball Bearing is a standard open-type bearing designed to provide smooth rotation in machinery. It’s widely used in motors, conveyors, gearboxes, and DIY projects where easy lubrication and inspection are needed.

✅ 20 mm inner diameter
✅ 42 mm outer diameter
✅ 12 mm width
✅ Material: steel
✅ Cage: riveted steel cage
✅ Bore type: round bore
✅ Internal clearance: C0

💡 What is a deep groove ball bearing used for in general machinery? Deep groove bearings are handy for supporting radial loads and allowing smooth rotation across many types of equipment.

• Handy for shafts with radial loads in pumps, fans, and conveyors
• Easy lubrication and maintenance in open housings
• Ideal for hobby projects and standard industrial machinery