What is the limiting speed of the 7205C-2RZ HQ1?

This hybrid ceramic bearing is rated for a limiting speed of up to 30,000 RPM when used with high-speed grease lubrication.

How does the ceramic ball improve durability?

Ceramic balls (Si3N4) are harder than steel, naturally resistant to corrosion, and generate 40% less friction-induced heat. This prevents thermal fatigue and wear, significantly extending the life of the bearing in demanding applications.

Does this bearing provide electrical insulation?

Yes. Ceramic balls are electrical insulators, making this bearing an excellent choice for electric motors and spindles where stray currents can cause electrical erosion in standard steel bearings.

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Angular Contact Ceramic Ball Bearing 7205C-2RZ HQ1

SKU / Model: 7205C-2RZ-HQ1

Power RatingIndustrial Grade

Max SpeedUp to 60,000 RPM

Cooling MethodStandard Cooled

Interface / SpecP4 Precision Grade

The 7205C-2RZ HQ1 is a premium hybrid angular contact ball bearing engineered for high-performance industrial systems requiring extreme durability and speed. By pairing precision-ground steel rings with aerospace-grade Silicon Nitride (Si3N4) ceramic balls, this bearing achieves a grease-lubricated limiting speed of 30,000 RPM. The 25mm bore and 52mm outside diameter, combined with an 18mm width, provide a robust dynamic load rating of 16.7 KN.

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Detailed Technical Specifications

Technical Parameter	Engineering Specification Value
CATEGORY & BRAND	Spindle Bearing \| TriQuench India

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Advanced Engineering Analysis: Angular Contact Ceramic Ball Bearing 7205C-2RZ HQ1

Angular Contact Ceramic Ball Bearing 7205C-2RZ HQ1

Detailed Technical Specifications

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