RNA4908UU Machined caged needle roller, 48 mm ID x 62 mm OD x 22 mm W, high carbon steel, sealed with oil hole, single-row RNA49 metric unit for linear slide systems and compact shaft support

Machined caged needle bearing, 48 x 62 x 22 mm sealed
✔️ RNA4908UU high carbon steel, oil hole & seals, single bearing

This is a single machined, caged needle roller bearing commonly used on compact shafts and linear slide units in automotive, industrial automation, and machinery applications.

✅ Inner diameter: 48 mm
✅ Outer diameter: 62 mm
✅Width：22 mm
✅ Material: High carbon steel
✅ Type: Machined caged, single-row needle roller
✅ Seals: Synthetic rubber with oil hole for relubrication
✅ Dynamic capacity: 37200 N, Static capacity: 58400 N
✅ Max speed: 4000 rpm; Series RNA49 metric

💡 What are needle roller bearings used for in compact linear slide units? Needle roller bearings deliver high radial load capacity in minimal radial space, ideal when shaft diameter is limited and low cross-section is needed. Quick summary: - Ideal for compact shaft support and linear slide units in automation and machine tools - Offers high load handling and low friction for precise motion in tight assemblies - Sealed versions with oil holes enable relubrication, extending service life and working well alongside sealed ball bearing setups