Needle roller bearing NA4934 machined type, 170 mm ID x 230 mm OD x 69 mm width, high carbon steel, oil hole, inner ring, caged NA49 metric series, single unit

Machined needle roller bearing NA4934, metric sizes
✔️ 170 mm ID x 230 mm OD x 69 mm width, high carbon steel, single unit

This machined-type needle roller bearing with inner ring is built for heavy-duty shafts, gearboxes, and transmission assemblies where compact radial support and high load capacity are required.

✅ Type: Caged machined needle roller with inner ring
✅ ID 170 mm, OD 230 mm, Width 69 mm (NA49 metric series)
✅ Material: high carbon steel, with oil hole for lubrication
✅ Dynamic load capacity 347000 N, Static load capacity 810000 N
✅ Max speed 1900 rpm, open enclosure, single unit pack

💡 What is a needle roller bearing used for in industrial shafts and linear slide units? Needle roller bearings give compact, high-load radial support in tight assemblies. Great for applications where space is limited but heavy loads must be handled. - Used in automotive transmissions, gearboxes, and powertrain shafts for high load capacity and minimal cross-section. - Fits compact linear slide unit setups and can be chosen instead of a sealed ball bearing or ceramic option. - Preferred when oil-hole lubrication and an inner ring are handy for maintenance and reliable performance.