61905 2RSJ EM sealed deep groove ball bearing by Nachi, electric motor grade, made in Japan with 25x42x9mm dimensions

61905 2RSJ EM Nachi Sealed Deep Groove Ball Bearing Japan
✔️ EM electric motor grade sealed ball bearing 25 x 42 x 9 mm

This is a single Nachi 61905 2RSJ EM deep groove ball bearing made in Japan, built for smooth rotation and stable performance in electric motors, machinery, and high-speed applications. The double sealed design keeps grease in and contaminants out, making it a solid choice for long service life with minimal maintenance. Pack size is one bearing.

✅ Bearing type deep groove ball bearing
✅ Series 61905 2RSJ EM
✅ Inner diameter 25 mm
✅ Outer diameter 42 mm
✅ Width 9 mm
✅ Double sealed design for grease retention and protection
✅ EM electric motor quality for smooth and quiet operation
✅ Dynamic load rating 7000 N
✅ Static load rating 4500 N
✅ Limiting speed with grease 16000 RPM
✅ Limiting speed with oil 20000 RPM
✅ Made in Japan
✅ Nachi marking 6905-2NSE

Dimensions
Inner Diameter 25 mm
Outer Diameter 42 mm
Width 9 mm

💡 Why are sealed deep groove ball bearings preferred in electric motor applications?
These bearings are designed to balance speed capability, load handling, and reliability in rotating equipment.

• Sealed construction keeps lubrication inside and blocks dust and moisture

• Deep groove geometry supports radial loads with moderate axial loads

• EM-grade internal design helps reduce noise and vibration at high speed

• Factory-greased setup cuts down on maintenance and downtime

This bearing is a handy pick when you want clean rotation, stable speed performance, and dependable operation in motors and precision-driven equipment.