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LFR5201KDD U Groove Track Roller Bearings 12x35x15.9mm LFR5201KDD U groove track roller bearings are produce with Chrome steel Gcr15 ,we can provide sample for you test . more
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S51106 Thrust Ball Bearings 30x47x11mm S51106 Stainless steel thrust ball bearing,produce with stainless steel ,we can provide with OEM service for you . more

Silicon Nitride Si3N4 Ceramic Roller

4*5mm ceramic roller are produced with Si3N4 material ,we can produce with G2 Grade for you ,customized size are welcome .

item no.:
4mm
lead time:
7 days after confirm order
shipping port:
Ningbo ,Shanghai,Guanzhou
color:
black
MOQ:
50

products details

Si3N4 Cylindrical Rollers Specification:

Material: SI3N4

Diameter :4mm with tolerance (0~ -0.002)

Length: 5 mm with tolerance (0~ -0.18)

Grade: G2

radius ：0.3

Silicon Nitride ceramic

Silicon Nitride Material Features:

High hardness, high strength, wear resistance, corrosion resistance, high temperature(1200°), good thermal diffusivity, good thermal shock resistance(avoid the temperature changing rapidly), good insulativity, low density. The comprehensive properties are best in most of structure ceramic.

Ceramic Roller

Silicon Nitride Data For Your Reference :

Properties of Silicon Nitride (Si3N4) Ceramics
Item	Unit	Typical Values
Physical Properties
Density	g/cm3	>3.2
Mechanical Properties
Rockwell Hardness		HRA90
Vickers Hardness (Hv50)	HV0.5	>1550
Modulus of Elasticity	Gpa	290
Flexural Strength	Mpa	>600
Compressive Strength	Mpa	2500
Fracture toughness	Mpam1/2	>6.0
Thermal Properties
Maximum use temperature	°C	1200
Thermal Conductivity	W/(m.k)	15-20
Thermal Expansion Coefficient	10-6/°C	>3.1
Thermal Shock Resistance	T°C	500
Specific Heat Capacity	KJ/kg.K	700
Electrical Properties
Dielectric Strength	KV/mm	1
Dielectric Constant	Er
Volume Resistivity at 20°C	Ω.cm	1.0X1012

Si3N4 Ceramic Roller

Application of Si3N4 Ceramic Roller :

Balls for check valves and Hybrid Ball bearing

Cylinderical rollers for Hybried Roller Bearing and Fuel Pumps

Cam Rollers for Engines and Fuel Pumps

Machinery, electronic, semiconductor, chemical, petroleum, smelt.

Specific application: Welding shaft, electronic substrate, plunger, nozzle, slide guide, diesel parts, metal molding, shaft wheels etc.

For Ceramic Material :

We provide alumina ceramic, zirconia ceramic, silicon nitride (Si3N4) ceramic, macor (mica glass ) ceramic, aluminum nitride (AIN) ceramic, silicon carbide (SiC) ceramic, boron nitride (BN) ceramic, quartz ceramic, mullite ceramic, cordierite ceramic etc.

hot tags :

SI3N4 Ceramic Roller Customized Ceramic Roller Silicon Nitride Ceramic Rollers Si3N4 Material Ceramic Roller Si3N4 Cylindrical Rollers

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SI3N4 Ceramic Bearing Balls