Detailed Product Description

Designation: NU310 ECM/C3VA301 Coating: Aluminium Oxide Coating
Electrical Resistance: Voltages Up To 3000 V DC Cage: Brass
Cleance: C3 or C4 Dimension: 50×110×27 mm
Weight: 1.3 kg Application: Electric Traction Motors

Current-Insulated Cylindrical Roller Bearing NU310 ECM/C3VA301 provide a bearing function and electrical insulation, virtually eliminates premature bearing failure caused by stray electric currents, electrical insulated bearing can reduce the number of failures and improve the machine up-time, reduce the cost of maintenance.

Current-Insulated Cylindrical Roller Bearing NU310 ECM/C3VA301 consist of one inner ring, one outer ring with Aluminuim Oxide Coating, and one piece of machined brass cage, steel Rollers, Its dimension are the same with normal chrome steel NU310ECM/C3 Cylindrical Roller Bearing.

Features and Benefits of CoatMaster Current-Insulated Cylindrical Roller Bearing

Current-Insulated Cylindrical Roller Bearing NU310 ECM/C3VA301
Principal dimensions 50×110×27mm
Weight 1.3kg
Basic dynamic load rating-C: 127kN
Basic static load rating-Co: 112kN
Fatigue load limit-Pu: 0 kN
Reference speed: 0 r/min
Limiting speed: 8000 r/min


Electric Motors Operated by Variable Frequency Drives (VFD)

  • When operated by VFD, the power to the motor is a series of positive and negative pulses instead of a smooth sine wave.
  • The input voltage is never blanced because the voltage is either 0 volts, positive, or negative with rapid switching between pulses in all three phases.
  • The common mode voltage is usually a “square wave” or “6 step” voltage wave form

Current-Insulated Cylindrical Roller Bearing adopts the special spraying process, spraying the high quality coating on the outer surface of the bearing, Strong adhesion between film and substrate, Good insulation performance, avoiding the electric corrosion effect of the induced current on the bearing, Prevent current from damage for grease, rolling elements and raceways, Improve the service life of bearings . The process is constantly being improved. Among Electrically Insulated Bearing, there is a 100 μm thick coating on the outer or inner ring surface that can withstand voltages up to 1000 V DC. Special spraying process can form a layer with uniform thickness and strong adhesion , After further processing, it can be protected from moisture and humidity.

XRB is the China bearing manufacturer & exporter & supplier, it can supply NU310 ECM/C3VA301 Current-Insulated Cylindrical Roller Bearing, Our large quantity insulated Cylindrical roller bearing Stock can meet your need with good quality and fast delivery, Also you can find FAG NU310-M-J20AA-C4 Bearing, the other type and brand insulated Cylindrical roller bearing, insocoat tapered roller bearing, Current-Insulated Bearings.