Silicon Nitride Si3N4 Grade 5 Metric Balls, Faster, Harder, Rounder! 1mm -10mm
Quick Order Code: 33418
Silicone Nitride Si3N4 Ball
Availability:
In stock
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£7.49
£6.24
Silicone Nitride Si3N4 Ball
Compared with Steel balls Si3N4 balls have the following advantages
- 59% Lighter Than Steel, which means less centrifugal force and less wear on the raceways during high speed acceleration
- 44% Larger elastic modulus, meaning less deformation under load
- Quite simply the hardest ball Rockwell 78
- Smaller friction coefficient
- 1/4" coefficient of the thermal expansion of steel, can also accommodate sudden changes in temperature
- Superior surface finish Ra 4~6 nm
- Can withstand temperatures up to 1050 Degrees C
- Never rust and require no lubrication
- Free of metal contamination
- Non-Magnetic
- Electric Isolation
- No adhesive-wear
Application Examples
Si3N4 ball can be used in all bearings with special requirement: high speed bearing, high precision bearing; vacuum bearing; high/low temperature bearing, non-magnetic bearing, high precision ball screw; Si3N4 ball can also be used as valve ball and metering ball in chemical pump, high-temperature pump, metering pump.
Si3N4 ball is generally assembled in bearing for application in high-tech industry such as aerospace, national defense, chemical industry, metallurgical, medical, food, oil plant, electronic etc.
Can also be used for replacing standard steel bearings for applications such as bicycle wheel hub
Choose from the following diameters
| Ball Diameter | Material | Grade |
| 1mm | Si3N4 | 5 |
| 1.5mm | Si3N4 | 5 |
| 2mm | Si3N4 | 5 |
| 2.5mm | Si3N4 | 5 |
| 3mm | Si3N4 | 5 |
| 3.5mm | Si3N4 | 5 |
| 4mm | Si3N4 | 5 |
| 4.5mm | Si3N4 | 5 |
| 5mm | Si3N4 | 5 |
| 5.5mm | Si3N4 | 5 |
| 6mm | Si3N4 | 5 |
| 6.5mm | Si3N4 | 5 |
| 7mm | Si3N4 | 5 |
| 7.5mm | Si3N4 | 5 |
| 8mm | Si3N4 | 5 |
| 8.5mm | Si3N4 | 5 |
| 9mm | Si3N4 | 5 |
| 10mm | Si3N4 | 5 |
| Manufacturer Part Number | = | SI3N4 SILICON NITRIDE BALL |
|---|---|---|
| Brand | = | RVH |
| Material | = | Silicon Nitride Si3N4 |
| Precision Grade | = | Grade 5 |
| Density | = | g/cm³ = 3.29 - lb/in³ = 2.05.4 |
| Porosity | = | 0 |
| Flexural Strength | = | Mpa = 830 - lbf/in² x 10³ = 120.4 |
| Elastic Modulas | = | GPa = 310 - lbf/in² x 10³ = 45 |
| Hardness | = | Kg/mm² = 1580 |
| Fracture Toughness Kic | = | MPa.m¹/² = 6.1 |
| Maximum Service Temperature | = | 1000°C - 1830°F |
| Thermal Coefficient | = | W/m² K = 30 - BTU fth°F 208 |
| Coefficient Of Thermal Expansion | = | 10¯⁶/°C = 3.3 - 10¯⁶/°F 1.8 |
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Frequently Asked Questions and Answers
-
what is the spherical tolerance & what is your price for a bulk order?
Hi Brian thank you for the enquiry, the silicon nitride balls we stock are GD5. Ball Diametre Tolerance = +0.000005" If of interest can you advise how many you require? Regards Ryan
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Terms & Conditions
Please see this page for more details - https://www.hendersonbearings.co.uk/terms-conditions/
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UK Freight
Post Royal Mail 48 - 0.1KG - 2.00KG Currently free of charge (UK Orders ONLY over £12.00 GBP) however this may change so please don't assume this will apply to future orders. This can be upgraded to Royal Mail 24 (First Class Post), prices available on checkout like :
Royal Mail Standard 48 : £3.29
First Class Post Signed For : £4.25
RMSD 0.5KG - 10.00KG Guaranteed next day delivery before 1PM (Price from £7.50 To £27.50)
UPS Standard 0.5KG Up- Next day UK mainland delivery, excluding off shore islands or Scottish Highlands (Price from £7.05)
Express Freight
UPS Express Saver 0.5KG Up- Next day AM UK mainland delivery, excluding off shore islands or Scottish Highlands (Price from £10.93 UP)
UPS Express 0.5KG Up- Next before 10:30AM UK mainland delivery, excluding off shore islands or Scottish Highlands (Price from £11.27 Up)
International Freight
UPS Standard Up to 5KG approximately (£18.00 GBP) Available for many European countries. Delivery times vary from 2-3 days up to 5-7 day. Please enquire for specific countries.
UPS Express saver available to all countries that we trade with. Prices vary depending on weight and country Zone. Prices start from (£20.00 GBP)
UPS Express available to all countries that we trade with. Prices vary depending on weight and country Zone. Prices start from (£25.00 GBP)
Exact prices and options will be shown on checkout
Collection
Collection in person, or arranging for a carrier of your choice to collect your goods on your behalf. In both cases we ask that you allow us time to prepare your order for collection, as large orders can take time to pick and pack.
We also ask that if you are arranging for your order to be collected that you inform us who will be collecting your parcel and give them your order number - this is a unique number allocated to every order.
Import Duty
If you order products from our website for delivery outside the UK, they may be subject to import duties and taxes which are levied when the delivery reaches the specified destination. You will be responsible for payment of any such duties and taxes. Please note that we have no control over these charges and cannot predict their amount. Please contact your local customs office for further information before placing your order.
