Caged NAU4904UU Roller Bearing Single 20 mm ID x 37 mm OD x 17 mm Width, High Carbon Steel Sealed Dual-Row, Outer Ring Oil Holes, Heavy Duty for Linear Slide Unit and Industrial Equipment

Single caged dual-row roller bearing 20 x 37 x 17 mm sealed
✔️ High carbon steel; outer oil holes; sealed; 20 mm ID, 37 mm OD, 17 mm

This single sealed caged roller bearing (model NAU4904UU) is a dual-row metric unit commonly used in linear slide units, conveyor systems, and heavy machinery where high radial load capacity and low maintenance are needed.

✅ Model: NAU4904UU, NAU Metric Series, single bearing
✅ Material: High carbon steel, heavy duty caged rollers
✅ Enclosure: With seals; seal material synthetic resin rubber
✅ Outer ring: Oil holes for relubrication access
✅ Dimensions: 20 mm ID, 37 mm OD, 17 mm width
✅ Load capacity: Dynamic 10700 N; Static 11300 N
✅ Speed & temp: Max 8000 rpm; -20 to 120 deg C operating range
✅ Rows & type: Dual-row, caged heavy duty roller bearing

💡 What is a sealed roller bearing used for in linear slide unit and heavy equipment applications? Sealed roller bearings keep lubrication in and contaminants out, making them handy for motion systems and reducing downtime. - Great for linear slide unit guides and CNC rails where sealed ball bearing replacements are needed - Works well in heavy duty, dual-row applications needing high radial load capacity and relubrication points - Common choice for pillow block bearing mounts, conveyor systems, and industrial motion control; consider ceramic bearings for high-speed or corrosive cases