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.

Inquiry Form

close

Request for quote

 

 

🔹 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

16 other products in the same category:

Sapphire and Ruby Rectangular Optical Windows – Durable and Precise Sapphire and Ruby Rectangular Optical Windows – Durable and Precise 2
Sapphire and Ruby

Rectangular Window from Sapphire and Ruby

IJ430001
Rectangular windows made from sapphire or ruby are ideal for applications that demand chemical resistance, high mechanical strength, and wide spectral transmission. These windows are used in medical and diagnostic equipment, barcode readers, and optical devices operating in UV, IR, and visible spectra.
View
Double Hole Orifices – Precision Flow Control with Synthetic Sapphire & Ruby Double Hole Orifices – Precision Flow Control with Synthetic Sapphire & Ruby 2
Sapphire and Ruby

Double Hole Orifices from Sapphire & Ruby

IJ388888
Double hole orifices made from synthetic sapphire and ruby are designed for precision applications that require stable and directed flow control of water, air, chemicals, or other media. The dual-exit design enables controlled distribution or separation of flow paths.
View
Sapphire Gramophone Needle – Single-Sided for Precision Sound Sapphire Gramophone Needle – Single-Sided for Precision Sound 2
Sapphire bearings

Sapphire Gramophone Needle – Single-Sided

28100
High-quality sapphire needle for precise sound reproduction The single-sided sapphire gramophone needle is a key component of phonograph cartridges, designed for accurate sound tracking from vinyl records. Thanks to the high hardness of sapphire and its resistance to wear, it provides long-lasting performance and clear audio playback. This type of needle...
View
Sapphire Knife Edge – Precision Cutting Edge for Analytical Balances Sapphire Knife Edge – Precision Cutting Edge for Analytical Balances 2
Sapphire bearings

Sapphire knife edge

38100
The sapphire knife edge is a crucial component in analytical balances, where its sharp edge rests on a polished sapphire seat, ensuring highly accurate measurements. With outstanding hardness and low friction, it resists wear and provides long-term stability. It is used in laboratory and industrial applications that demand maximum precision.
View
Sapphire Gramophone Needle – Double-Sided for Extended Use Sapphire Gramophone Needle – Double-Sided for Extended Use 2
Sapphire bearings

Sapphire Gramophone Needle – Double-Sided

28201
High-quality sapphire needle for precise sound reproduction The double-sided sapphire gramophone needle is a key component of phonograph cartridges, designed for accurate sound tracking from vinyl records. Thanks to the high hardness of sapphire and its resistance to wear, it provides long-lasting performance and clear audio playback. Compared to the...
View
Sapphire Roller – Precision Guidance for Textile Fibers Sapphire Roller – Precision Guidance for Textile Fibers 2
Sapphire bearings

Sapphire Roller

37101
The sapphire roller is a highly durable component used for guiding textile fibers. Its exceptionally low friction, outstanding wear resistance, and excellent chemical stability ensure smooth and precise fiber movement without damage. It is ideal for applications requiring minimal resistance and long service life, even under demanding operating conditions.
View
Sapphire Cap Jewel – Polished on Both Sides, Precision Bearing Component Sapphire Cap Jewel – Polished on Both Sides, Precision Bearing Component 2
Sapphire bearings

Sapphire Cap Jewel, Polished on Both Sides

26200
High-precision bearing component for fine mechanics The sapphire cap jewel, polished on both sides, is a key part of 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 smooth and stable movement of the mechanism. Thanks to double-sided polishing, it...
View
Valve Check – Precision Sapphire and Ruby Valves Valve Check – Precision Sapphire and Ruby Valves 2
Sapphire and Ruby

Valve Check – Sapphire Seat and Ruby Ball

96664
The Valve Check is a type of check valve that uses a sapphire seat and a ruby ball to ensure precise and reliable fluid or gas flow control. These components excel in hardness, low friction, and extreme chemical and thermal resistance.
View
Sapphire stylus – For recording instruments Sapphire stylus – For recording instruments 2
Sapphire bearings

Sapphire stylus

360100
The sapphire stylus is used in recording instruments that work with special multilayer foil. The stylus tip, ending in a very small radius, creates precise curve recordings. Thanks to the sapphire material, it offers high wear resistance and long-lasting performance.
View
Unpolished sapphire fiber guide – For high-speed spindles Unpolished sapphire fiber guide – For high-speed spindles 2
Sapphire bearings

Unpolished sapphire fiber guide

31200
The unpolished sapphire fiber guide is mounted in special high-speed spindles. As the fiber passes through the guide during rotation, it becomes curled and crimped. The sapphire material ensures high wear resistance and precision, making it ideal for industrial fiber processing.
View
Precision Fluid Nozzles from Sapphire & Ruby – for Air, Water & Chemical Control Precision Fluid Nozzles from Sapphire & Ruby – for Air, Water & Chemical Control 2
Sapphire and Ruby

Fluid Nozzles from Sapphire & Ruby

IJ36666
Fluid nozzles made from synthetic sapphire and ruby offer exceptional durability, precision, and resistance to wear. They are ideal for applications requiring controlled flow of liquids, air, or chemicals in high-performance environments.
View
Sapphire and Ruby Round Watch Glass – Durable and Optically Clear Sapphire and Ruby Round Watch Glass – Durable and Optically Clear 2
Sapphire and Ruby

Round Window Watch Glass from Sapphire or Ruby

IJ40000
Round glass windows made from sapphire or ruby are used in demanding environments requiring chemical resistance, extreme hardness, thermal stability, wide transmission range, and excellent mechanical strength. Applications include watch glasses, medical and diagnostic devices, barcode readers, IR and UV systems, and other optical technologies.
View
Sapphire Jewel with Cylindrical Hole – Precision Bearing Component Sapphire Jewel with Cylindrical Hole – Precision Bearing Component 2
Sapphire bearings

Sapphire Jewel with Cylindrical Hole

36100
Precision bearing component for fine mechanics The sapphire jewel with a cylindrical hole is a key part of high-precision bearings, serving as a support for a rotating steel shaft. This bearing absorbs both radial and axial loads, ensuring stability and long-term durability of the mechanism. This jewel is often used in combination with a cap (support)...
View
Sapphire Cup Bearing – Precision Pivot Bearing for Electricity Meters Sapphire Cup Bearing – Precision Pivot Bearing for Electricity Meters 2
Sapphire bearings

Sapphire Cup Bearing, Medium Polished

15200
The sapphire cup bearing is a precision component that enables smooth rotation of a steel ball between two bearings in a housing. The specially shaped spherical recess ensures that the ball has a smaller radius than the recess, allowing efficient absorption of axial loads. Thanks to its high hardness and low friction, it is ideal as a pivot bearing in...
View
Sapphire fiber guide – For high-speed spindles Sapphire fiber guide – For high-speed spindles 2
Sapphire bearings

Sapphire fiber guide

31100
The unpolished sapphire fiber guide is mounted in special high-speed spindles. As the fiber passes through the guide during rotation, it becomes curled and crimped. The sapphire material ensures high wear resistance and precision, making it ideal for industrial fiber processing.
View
Sapphire Conical Bearing – Precision Bearing for Measuring Instruments Sapphire Conical Bearing – Precision Bearing for Measuring Instruments 2
Sapphire bearings

Sapphire Conical Bearing

13100
The sapphire conical bearing is a specialized bearing in which a steel shaft rotates with a radius smaller than the bearing cone’s apex radius. This design ensures minimal friction and exceptional accuracy, making it ideal for measuring instruments with a moving pointer, such as voltmeters and ammeters. The sapphire’s hardness provides excellent wear...
View
Product added to compare.

We use cookies to personalize content, analyze traffic, and improve your user experience. By continuing to use this site, you agree to our use of cookies. Learn more.