Single-Unit Needle Roller RNAF709030 Separable Caged One-Row, 70 mm I.D. x 90 mm O.D. x 30 mm Width, High Carbon Steel Open Type for Rotary Shafts and Linear Slide Units, Speed-Rated

Single-unit RNAF709030 needle roller bearing 70x90x30 mm
✔️ Open separable cage, high carbon steel, 61.2 kN dyn, 7,000 rpm

This single bearing is a separable caged needle roller ideal for compact rotary shafts and linear slide unit applications. Commonly used in conveyors, actuators, and small gearboxes where radial capacity and tight envelope matter.

✅ Model: RNAF709030 (RNAF Metric Series)
✅ Type: Caged separable needle roller, one-row
✅ Dimensions: 70 mm ID x 90 mm OD x 30 mm width
✅ Material & enclosure: High carbon steel, open, no oil hole
✅ Load & speed: 61,200 N dynamic / 136,000 N static, 7,000 rpm max
✅ Weight & pack: 1.100 lb each; sold as a single bearing unit

💡 How do needle roller bearings improve load capacity in compact linear slide unit and rotary shaft setups? They deliver high radial load carrying ability in a small package, making them handy where space is tight. - They spread load with many thin rollers, often outperforming a sealed ball bearing of similar envelope for radial loads. - Separable, caged designs like RNAF make installation and maintenance easier in pillow block and gearbox assemblies. - For higher speed or corrosion resistance, consider ceramic options; otherwise high carbon steel balances strength and cost.