Electrically Insulated Ball Bearings 6217M/C4VL0241

The 6217M/C4VL0241 is an electrically insulated ball bearing with an 85mm bore and 150mm outer diameter, designed to prevent electrical currents from passing through. It features a durable brass cage and can handle dynamic loads up to 87.1 kN.

Its outer ring is coated with an insulating layer, providing a breakdown voltage of 1000-3000V and electrical resistance of 50-200 MΩ. This makes it ideal for use in electric motors or generators where electrical insulation is crucial.

With a reference speed of 9000 RPM, it offers smooth performance in high-speed applications. The C4 radial internal clearance ensures reliable operation under varying thermal conditions.

Weighing 2.14kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for industrial and electrical applications.

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Description

Features

Application

Q&A

Product Parameters

Model 6217M/C4VL0241
Product Category Electrically Insulated Ball Bearings
Coating Suffix VL0241
Insulating Coating Types Insulation coating on outer ring
Manufacturers TFL
Bore Diameter 85.0 mm
Outside Diameter 150.0 mm
Width 28.0 mm
Net Weight 2.14 kg
Basic Dynamic Load Rating 87.1 kN
Basic Static Load Rating 64.0 kN
Reference Speed 9000.0 r/min
Breakdown Voltage (DC) 1000 ~3000 V
Layer Thickness 100~500 µm
Electrical Resistance 50~200 MΩ
Cage Material Brass cage
Radial Internal Clearance C4
ROHS Compliant
REACH Compliant

Electrically Insulated Ball Bearings 6217M/C4VL0241 dimension drawing

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Features

How Is 6217M/C4VL0241 Bearing Engineered for Reliability?

6217M/C4VL0241 Bearing features an insulating coating on the outer ring, preventing electrical currents from damaging the bearing.
This design ensures reliable operation in electrically charged environments, reducing downtime.

The brass cage maintains ball alignment, enhancing smooth rotation and reducing friction.
With a basic dynamic load rating of 87.1 kN, it handles demanding applications effortlessly.

6217M/C4VL0241 Bearing’s breakdown voltage ranges from 1000 to 3000 V, offering robust electrical insulation.
Its C4 radial internal clearance accommodates thermal expansion, ensuring consistent performance.

The reference speed of 9000 r/min makes 6217M/C4VL0241 Bearing suitable for high-speed applications.
Its durable construction and electrical resistance of 50-200 MΩ provide long-lasting reliability.

Application

Industrial Uses of 6217M/C4VL0241 Bearing
This bearing is commonly used in electric motors and generators, where its insulation coating prevents electrical arcing and extends component life. The brass cage adds durability in high-speed industrial settings.

What Makes 6217M/C4VL0241 Bearing a Preferred Choice?
Its ability to handle breakdown voltages up to 3000V makes it ideal for wind turbines and railway traction motors. The C4 clearance ensures reliable performance under varying thermal conditions.

Perfect Fit for Automation: 6217M/C4VL0241 Bearing
In robotic assembly lines, this bearing’s consistent electrical resistance prevents current leakage in sensitive control systems. The 28mm width provides a compact solution for space-constrained designs.

Medical vs Industrial: Where 6217M/C4VL0241 Bearing Excels
While suitable for MRI machine components, it truly shines in industrial frequency converters where both electrical insulation and high rotational speeds are required. The 150mm OD offers stable support for heavy rotor assemblies.

How Does 6217M/C4VL0241 Bearing Support High-Speed Operations?
With a reference speed of 9000r/min, it’s frequently specified for spindle applications in CNC machining centers. The coating thickness can be customized between 100-500µm for different voltage requirements.