Single machined needle roller bearing with inner ring, 45 mm ID x 68 mm OD x 40 mm width, high-carbon steel, oil holes, caged open type NA6909 metric series, high dynamic and static load capacity

Single machined needle roller bearing 45x68x40 mm inner
✔️ Caged open type, high-carbon steel, oil holes, NA6909, 45 mm ID

Single machined NA6909 needle roller bearing with inner ring, ideal for compact gearboxes, linear slide units, and industrial transmissions.

✅ Type: Caged machined needle roller bearing, open enclosure
✅ Inner diameter: 45 mm; Outer diameter: 68 mm; Width: 40 mm
✅ Material: high carbon steel inner ring with oil holes for lubrication
✅ Dynamic load capacity: 74,600 N; Static load capacity: 147,000 N
✅ Maximum speed: 7,500 rpm; Series: NA69 (metric) NA6909
✅ Single unit pack; approx. weight 0.45 kg each

💡 What is a needle roller bearing used for in linear slide unit applications? Needle roller bearings are handy in confined radial spaces that demand high load capacity and a low profile. - Commonly used in compact linear slide unit guides, conveyor systems, and machine tool axes. - Often chosen instead of a sealed ball bearing when radial space is limited and higher load capacity is needed. - Works well in gearboxes, transmissions, and assemblies that benefit from oil hole lubrication and an inner ring for easy fitment.