USMA High Precision Cylindrical Roller Bearing NN3020MBKRCC1P4 Roller Bearing NN3040KCC1P4 for High-speed machine tools

USMA NN3020MBKRCC1P4 (NN3020 Series)

• Type: Double-row cylindrical roller bearing (NN = double-row, separable inner ring)

• Dimensions: 100×150×37 mm (Bore × OD × Width)

• Precision Grade: P4 (ABEC 7) – Ultra-high precision

• Cage (Retainer): MBKR (Machined brass cage, high-speed optimized)

• Lubrication: CC1 (Special grease for high-speed operation)

• Roller Guide: Floating guide ring for better load distribution

• Material: High-carbon chromium steel (vacuum-degassed)

• Dynamic/Static Load Rating: High radial load capacity (exact values depend on preload)

• Speed Rating: Suitable for 10,000+ RPM (depends on cooling & lubrication)

Key Features:
✔ Low friction & high rigidity (ideal for heavy radial loads)
✔ Brass cage (MBKR) ensures stability at high speeds
✔ P4 precision minimizes vibration in machine tools