Sapphire Cap / cover Jewel – Precision Bearing Component
Sapphire Cap / cover Jewel – Precision Bearing Component

Sapphire Cap Jewel

26100

A key component of precision bearings

The sapphire cap (cover) jewel is an essential part of high-precision bearings. Together with a hole jewel, it forms a pivot bearing for gear trains, where its main function is to absorb axial loads and ensure stable and precise movement of the mechanism.

Thanks to the extreme hardness and durability of sapphire, it minimizes friction and wear, contributing to the long lifespan of the bearing system. It is used in watch movements, measuring instruments, and other precision mechanical assemblies, where high accuracy and reliability are essential.

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🔹 Highly durable sapphire material – extreme hardness and minimal wear

🔹 Part of the bearing system – forms a precision pivot with a hole jewel

🔹 Absorbs axial loads – ensures smooth and stable gear train operation

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