+86 15806631151 info@sdtflbearing.com
The 6321-M-C3-SQ77 is an electrically insulated ball bearing with a 105mm bore and 225mm outer diameter, designed to prevent electrical current damage. It features a robust brass cage and can handle dynamic loads up to 195 kN, making it suitable for high-performance applications.
Its outer ring is coated with a special insulation layer (SQ77), providing a breakdown voltage of 1000-3000V and electrical resistance of 50-200 MΩ. This design ensures reliable operation in environments with electrical interference.
The bearing has a reference speed of 6300 r/min and a C3 radial clearance, offering smooth rotation under heavy loads. Its dimensions (105x225x49mm) and weight (8.3kg) make it a sturdy choice for industrial use.
Ideal for electric motors, generators, or wind turbines, this RoHS-compliant bearing combines durability with electrical safety. The insulation coating protects against stray currents, extending the bearing’s lifespan in demanding conditions.
"*" indicates required fields
How Is 6321-M-C3-SQ77 Bearing Engineered for Reliability?
6321-M-C3-SQ77 Bearing features an insulating coating on the outer ring, preventing electrical damage in high-voltage environments.
The brass cage ensures smooth operation and reduces friction, even at high speeds up to 6,300 r/min.
With a basic dynamic load rating of 195.0 kN, it handles heavy loads reliably.
Its breakdown voltage ranges from 1,000 to 3,000 V, making it suitable for electrically demanding applications.
Industrial Uses of 6321-M-C3-SQ77 Bearing
The 6321-M-C3-SQ77 Bearing is commonly used in industrial motors and generators, where electrical insulation prevents current leakage and reduces damage from stray currents. Its brass cage and C3 clearance ensure smooth operation even under heavy loads.
Where Is 6321-M-C3-SQ77 Bearing Used?
You’ll often find 6321-M-C3-SQ77 Bearing in wind turbines and electric vehicles, where its high breakdown voltage protects against electrical arcing. The insulation coating also makes it ideal for applications requiring consistent performance in electrically noisy environments.
Built for Heavy-Duty Use: 6321-M-C3-SQ77 Bearing
This bearing handles high dynamic loads in machinery like pumps and compressors, thanks to its robust design and 195 kN dynamic load rating. The SQ77 coating adds durability, making it suitable for harsh industrial settings.
Automotive vs Aerospace: Applications of 6321-M-C3-SQ77 Bearing
In automotive systems, 6321-M-C3-SQ77 Bearing is used in hybrid vehicle motors, while aerospace applications benefit from its reliability in avionics cooling fans. The insulation ensures safety in both high-voltage and precision environments.
Perfect Fit for Automation: 6321-M-C3-SQ77 Bearing
The 6321-M-C3-SQ77 Bearing works well in robotic arms and automated production lines, where electrical insulation prevents interference with sensitive electronics. Its high reference speed supports efficient, long-term operation.
"*" indicates required fields