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The NJ313-E-M6-SQ77 is an electrically insulated cylindrical roller bearing with a 65mm bore and 140mm outer diameter, designed to prevent electrical currents from damaging machinery. It features a durable brass cage and can handle dynamic loads up to 212kN.
Its outer ring has a special insulating coating (SQ77) with a breakdown voltage of 1000-3000V, making it ideal for electric motors or generators. The coating is over 0.125mm thick and offers high electrical resistance (>2000 MΩ).
With a reference speed of 5300 r/min, it performs well in high-speed applications. The normal radial clearance ensures smooth operation under varying temperatures.
Compliant with RoHS and REACH standards, this bearing is a reliable choice for industries where electrical insulation is crucial. Weighing 2.3kg, it balances strength and practicality.
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How Is NJ313-E-M6-SQ77 Bearing Engineered for Reliability?
NJ313-E-M6-SQ77 Bearing features an insulation coating on the outer ring, protecting against electrical currents up to 3000 V.
Its brass cage ensures smooth operation and reduces friction, even at high speeds of 5300 r/min.
With a basic dynamic load rating of 212 kN, it handles heavy loads reliably.
The coating thickness exceeds 0.125 mm, providing durable electrical resistance over 2000 MΩ.
Industrial Uses of NJ313-E-M6-SQ77 Bearing
This bearing is commonly used in electric motors and generators, where its electrically insulated coating prevents current passage and reduces damage from stray currents. The brass cage ensures smooth operation even at high speeds.
Where Is NJ313-E-M6-SQ77 Bearing Used?
You’ll often find it in wind turbines and industrial pumps, handling heavy radial loads with ease. Its insulation properties make it ideal for environments with electrical interference.
Built for Heavy-Duty Use: NJ313-E-M6-SQ77 Bearing
Perfect for conveyor systems and gearboxes, this bearing’s robust design handles continuous operation without issues. The normal radial clearance ensures reliable performance under varying loads.
Automotive vs Aerospace: Applications of NJ313-E-M6-SQ77 Bearing
In automotive alternators, it prevents electrical damage, while in aerospace applications, its high-speed capability is valued. The coating’s breakdown voltage range suits diverse industrial needs.
Practical Applications of NJ313-E-M6-SQ77 Bearing
Medical imaging devices benefit from its precision and insulation, ensuring accurate performance. The 33mm width fits compact spaces without compromising load capacity.
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