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Silicon Nitride (Si3N4) Ceramic Balls – Toshiba Material TSN-03NH

Spheric-Trafalgar Ltd is a World leading manufacturer and supplier of super precision Silicon Nitride balls produced from Toshiba Material TSN-03NH.

Toshiba material TSN-03NH is certified to meet ASTM F2094 Class I requirements, the highest industry classification for silicon nitride bearing materials.

For these reasons Toshiba is recognized by all major bearing manufacturers and other industries including Automotive, Aerospace and Semi-Conductor.

Comparison of TSN-03NH with ASTM F2094

Properties	Method	Unit	Material Class			TSN-03NH (Average level)
Properties	Method	Unit	I	II	III	TSN-03NH (Average level)
Flexural Strength	3 point (Mean)	MPa	900	800	600	1100
Flexural Strength	Weibull modulus		12	9	7	20
Hardness	HV20kg		1460	1360	1300	1500
Fracture Toughness	Indentation Fracture Resistance, IE??R	MPa√m	≥6.0	≥5.0	≥5.0	7.0
Porosity Size	SEM or Microscope	μm	≤10	≤10	≤25	<1

Reasons for choosing Silicon Nitride over Steel

OEM’s choose Silicon Nitride over Steel for a variety of reasons, some of which are -

Density of 40% lower than Steel
60% less weight than Steel
Excellent corrosion resistance against harsh chemicals and environments
Superior surface Ra 0.004µm / 0.010µm possible depending on size
100% Higher hardness
Life expectancy can be as much as 10 times more than steel
Operating temperatures up to 800ºC
Less bearing operating noise

To download a copy of the Toshiba TSN-03NH data sheet click here.

Why Spheric-Trafalgar?

Spheric-Trafalgar is able produce Silicon Nitride balls made from Toshiba material TSN-03NH in sizes ranging from 1mm to 57.15mm (2.1/4”) from Grade 3 up to Grade 28 (or lower if required).

The extremely versatile production capacity in our manufacturing divisions enables us to offer batches of less than 500g (1lb) up to 80kgs (180lbs) in standard and intermediate sizes.

With the aid of our sophisticated production and inspection processes, we can produce Silicon Nitride Balls to customer specifications and measure critical characteristics using the following equipments / techniques -

Taylor Hobson Talyrond 73 – Roundness / Harmonics
Taylor Hobson Surface Analyzer – Surface Finish (Ra)
SKF Steyr Waviness Analyzer – Roundness / Waviness
Heidenhain & Movomatic Comparators – Diameter
FPI / Dye Penetrant Inspection

Standard sizes are constantly in production or available from stock and so deliveries to customers can be processed quickly and efficiently.

Non standard sizes are available upon request.

Applications for Si3N4 Balls

Some typical applications for Silicon Nitride balls include -

Hybrid / Spindle Bearings
Wind Turbine Genarators
Fuel Injection Systems
Ballscrew / Linear Guides
Hard Disc Drives
Dental Handpieces
Valves

For further information on how Spheric-Trafalgar can support your business or to be included on our weekly stock mailing lists, please contact one of our Worldwide sales offices.

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