6307 2RSJ EM Bearing 35x80x21mm Sealed C3 Japan Made

6307 2RSJ EM Nachi Sealed Ball Bearing
✔️ 35 x 80 x 21mm – Double Sealed – C3 Clearance – Made in Japan

The 6307 2RSJ EM is a high-quality deep groove ball bearing manufactured by Nachi in Japan. Designed for electric motor use, it features EM-grade precision and performance with double rubber seals and C3 clearance for smooth, quiet, and long-lasting operation in demanding environments.

✅ Type: Deep groove ball bearing
✅ Brand: Nachi
✅ Origin: Made in Japan
✅ Marking: 6307-2NSE
✅ Quality: EM (Electric Motor Grade)
✅ Radial clearance: C3
✅ Closures: Double rubber seals (2RS)
✅ Size: 35mm (ID) x 80mm (OD) x 21mm (Width)
✅ Dynamic load rating (Cr): 33,500 N
✅ Static load rating (Cor): 19,200 N
✅ Limiting speed (grease): 6,000 RPM
✅ Quantity: 1 bearing
✅ Interchangeable with: 6307 RS / 6307 2RS

💡 What does C3 clearance mean in ball bearings?
C3 indicates greater internal clearance than normal, allowing the bearing to perform better under high-speed or high-temperature conditions by reducing friction and preventing seizure.

Engineered for electric motors, this bearing ensures smooth, reliable operation under heavy loads and extended run times.