Single RNA4912 Machined Caged Needle Roller Bearing, 68 mm ID x 85 mm OD x 25 mm Width, High Carbon Steel, Open Type with Oil Hole, RNA49 Metric Series for industrial machinery and linear slide units

Single RNA4912 machined caged needle roller bearing
✔️ 68 mm ID x 85 mm OD x 25 mm Width, High Carbon Steel, Oil hole

This single machined caged needle roller bearing is an open-type radial unit used in compact industrial machinery, gearboxes, and linear slide unit setups where space is tight.

✅ Model: RNA4912 (RNA49 Metric Series)
✅ Type: Machined caged needle roller, open enclosure
✅ Inner diameter: 68 mm
✅ Outer diameter: 85 mm
✅ Width: 25 mm
✅ Material: High carbon steel, oil-hole lubrication
✅ Dynamic load capacity: 60,200 N
✅ Static load capacity: 105,000 N
✅ Max speed: 6,000 rpm; single-row design
✅ Pack: Single bearing, weight ~0.630 lb each

💡 What is a needle roller bearing used for in linear slide unit applications? Needle roller bearings give high radial load capacity in a tight profile and make motion smooth and reliable for linear slide units. Quick intro: Handy in compact industrial gearboxes and linear slide unit systems. - Supports heavy radial loads while minimizing radial space, ideal for linear slide unit and conveyor systems - Works well as a low-profile alternative to sealed ball bearing solutions in tight assemblies - Suited for oil-lubricated, machined caged designs running up to 6000 rpm in industrial machinery