SKF NN3010KTNSP Double Row Cylindrical Roller Bearing

SKF NN3010KTNSP is a double‑row, super‑precision cylindrical roller bearing with a 50 mm bore, 80 mm outside diameter and 23 mm width, engineered for high‑rigidity spindle and precision machine‑tool applications. The NN design features a separable inner‑ring assembly for easier mounting, and a straight bore that yields precise seating in tight tolerances. It delivers ABEC 5 precision and internal clearance class C1, with a steel race and a non‑metallic polyamide cage in an open (unsealed) configuration. Lubrication is not pre‑installed, so in‑service lubrication is required. Maximum speeds vary by lubricant: up to 12,000 rpm in grease, up to 13,000 rpm with oil lubrication, and up to 11,000 rpm for other grease conditions. The bearing operates in environments up to +120 °C and weighs approximately 0.42 kg (about 0.93 lb). Suitable for high‑precision spindle work, the NN3010KTNSP is commonly used in CNC lathes, grinding spindles, and other machine‑tool assemblies where stiffness and runout control are critical.