Single Caged Needle Roller Bearing RNA4905 Machined Type, 30 mm I.D. x 42 mm O.D. x 17 mm Width, High Carbon Steel with Oil Hole, 13000 rpm, 23700 N Dynamic Load, Metric

Single caged needle roller bearing RNA4905, machined
✔️ 30 mm I.D. x 42 mm O.D. x 17 mm W, high carbon steel, oil hole

This single-unit machined caged needle roller bearing is built for tight radial spaces and heavy loads. Commonly used in linear slide units, cam followers, and compact transmissions where low cross-section is needed.

✅ Model: RNA4905 (RNA49 Metric Series)
✅ Type: Caged machined needle roller bearing, open enclosure
✅ Dimensions: 30 mm I.D. × 42 mm O.D. × 17 mm width
✅ Material: High carbon steel; with oil hole for lubrication
✅ Dynamic load capacity: 23,700 N; Static load capacity: 30,700 N
✅ Max speed: 13,000 rpm; Single-row design
✅ Weight: 0.140 lb; Sold as single bearing (1 piece per unit)

💡 What is a needle roller bearing used for in linear slide unit and cam follower setups? Needle roller bearings are handy when you need high radial load capacity in a very compact package. They save radial space while supporting heavy loads with low rotational friction. Here’s the short setup rundown: - High radial load per diameter, ideal for tight spaces and slim housings - Common choice for linear slide unit and cam follower applications requiring low profile bearings - Works well as an alternative to sealed ball bearing when axial load is minimal and lubrication access is available - Look for oil-hole designs and high carbon steel options for easy lubrication and durability