Machined caged needle roller bearing RNA4905UU, 30 mm ID x 42 mm OD x 17 mm width, high carbon steel with oil hole and synthetic rubber seals, single-row metric unit

Machined caged needle roller bearing, RNA4905UU
✔️ 30 mm ID x 42 mm OD x 17 mm width, with oil hole and seals

This single-row machined caged needle roller bearing is a metric unit commonly used in linear slide units, compact gearboxes, and transmissions where a sealed ball bearing may be too bulky. It offers high radial load capacity in tight spaces.

✅ Model: RNA4905UU (RNA49 Metric Series)
✅ Inner diameter: 30 mm; outer diameter: 42 mm; width: 17 mm
✅ Material: high carbon steel; machined caged design for stability
✅ Seals: synthetic rubber; includes oil hole for easier lubrication
✅ Dynamic load capacity: 20,300 N; static load capacity: 25,100 N
✅ Maximum speed: 6,500 rpm; single-row needle roller configuration
✅ Weight: 0.140 lb; sold as one bearing per unit (single unit)

💡 What is a needle roller bearing used for in linear slide units and compact gearboxes? A needle roller bearing is a low-profile radial bearing that handles high loads in tight spaces. - Ideal when a sealed ball bearing would be too large for a linear slide unit or compact gearbox - Provides high radial load capacity with a slim cross-section and caged rollers - Works well where lubrication access (oil hole) and sealing are needed for longer service life