Precision Silicon Nitride Ceramic Bearing Ball
|Purchase Qty. (Pieces)||FOB Price|
|5-9||US $35 / Piece|
|10-49||US $32 / Piece|
|50+||US $28 / Piece|
high precise si3n4 Silicon nitride ceramic tube pipe
si3n4 ceramic rod, ceramic shaft, industrial ceramic rod
1.Max thermal resistance:1,200 deg
2.Cont thermal resistance:1,000 deg
Used in the Moletn AL as protection tubes
Silicon Nitride (Si3N4) is a relatively costly, high-temperature, structural ceramic
used where heat resistance, hardness, and strength are a premium.
It is very hard, and therefore can be used in high wear applications or applications requiring a fine surface polish.
Silicon Nitride is fabricated using either sintering, reaction bonding, hot pressing, or hot isostatic pressing.
The material properties resulting from these processes vary considerably.
(1)low confficient of thermal expansion ,only 1/4" of steel ball.
(2)less friction generated in the bearing as heat increases.
(3)low thermal conductivity.
(4)Long life and no need for lubrication.
(5)Anti-magnetic and resistant to corrosion by most substances
(6)light weight ,good surface finish and high temperature hardness.
It is suitable for applications where high loads,high speeds and extreme temperatures
It is mainly used in bearing which may work in harsh entironment.
SSN GPS-SSN HPSN RBSN
3.28 3.30 3.23 2.5
Young's Modulus (GPa)
285 320 315 189
Bend Strength (MPa)
675 750 850 440
Fracture Toughness K1c (MPa.m0.5)
6 7 8 2.5
16 16 16 7.2
Thermal Expansion Coefficient (x 10-6/°C)
3.2 3.2 3.2 3.2
Thermal Conductivity (W/m.K)
25 30 30 14
Maximum Temperature (°C) for application
Abrasive Wear resistance Parameter
1150 1150 1150 1100
9 9 9 7.5
1110 1130 1120 360
HIGHBORN is one of the leading high quality quartz glass and precise ceramics manufacturer and supplier in China.
HIGHBORN has always been a defining force in the sale and fabrication of quartz glass within the semi-conductor, chemical, solar Energy and precise ceramics within semi-conductor , solar energy, textile, electronic, and laser industries.
Carton box,then wooden box to avoid the broken.
Payment term :
T.T OR Western Union OR Credit Card
about 7 days for the stock sample;
about 20 days for the bulk quantity.