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The 6317-M-C4-SQ77 is an electrically insulated ball bearing with an 85mm bore and 180mm outer diameter, designed to prevent electrical currents from damaging machinery. Its outer ring features a special coating (SQ77) that provides insulation, with a breakdown voltage of 1000-3000V.
This bearing handles dynamic loads up to 140kN and spins smoothly at speeds up to 8000 RPM. The brass cage ensures durability, while the C4 radial clearance allows for thermal expansion in demanding conditions.
The insulation layer (100-500µm thick) offers electrical resistance of 50-200 MΩ, making it ideal for electric motors or generators. It’s also RoHS compliant for safe use in various industries.
Weighing 4.24kg, it’s a robust solution for applications where electrical insulation is crucial, such as wind turbines or industrial drives.
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How Is 6317-M-C4-SQ77 Bearing Engineered for Reliability?
6317-M-C4-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 8,000 r/min.
With a basic dynamic load rating of 140.0 kN, it handles heavy loads reliably.
The C4 radial internal clearance allows for thermal expansion, maintaining performance under varying conditions.
Its breakdown voltage ranges from 1,000 to 3,000 V, making it suitable for electrically demanding applications.
The coating thickness of 100~500 µm provides durable insulation without compromising structural integrity.
Industrial Uses of 6317-M-C4-SQ77 Bearing
This bearing is commonly used in electric motors and generators, where its insulating coating prevents electrical arcing and extends component life. The brass cage ensures smooth operation even at high speeds, making it reliable for industrial applications.
Where Is 6317-M-C4-SQ77 Bearing Used?
You’ll often find this bearing in wind turbines and railway systems, where electrical insulation is crucial to avoid damage from stray currents. Its C4 clearance allows for thermal expansion, making it suitable for variable temperature environments.
Built for Heavy-Duty Use: 6317-M-C4-SQ77 Bearing
With a dynamic load rating of 140 kN, this bearing handles heavy loads in machinery like pumps and compressors. The SQ77 coating provides consistent insulation, even in demanding conditions.
Automotive vs Aerospace: Applications of 6317-M-C4-SQ77 Bearing
In automotive alternators, this bearing prevents electrical damage from voltage spikes. For aerospace applications, its high-speed capability and insulation make it ideal for auxiliary power units.
Perfect Fit for Automation: 6317-M-C4-SQ77 Bearing
This bearing works well in robotic arms and CNC machines, where electrical isolation ensures precision. The 180 mm outer diameter provides stability, while the brass cage reduces friction.
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