G3 G5 G10 G16 G20 G100 High Polishing Si3n4 Silicon Nitride Ceramic Ball Beads

• Application: Aerospace, Electronics, Medical, Industrial Ceramic
• Type: Ceramic Parts
• Shape: Customized Designs
• Advantage: Abrasion Resistance
• Size: Size Customized
• Color: Black
• Model NO.: INC-VW205
• Processing Service: Bending, Moulding
• Feature: Anti-Corrosion
• Weight: Light
• Fracture Toughness: High
• Certificate: RoHS
• Transport Package: Wooden Case with Inner Foam Protection
• Specification: Customized
• Trademark: INNOVACERA
• Origin: Fujian, China
• Production Capacity: 10000 Piece/Pieces Per Month

Product Description

 

Silicon Nitride Ceramic Bearing Balls are formed from a new material suitable for applications where high loads, high speeds and extreme temeratures are factors. Long life and the need for minimal lubrication make this material appropriate for extreme applications. Silicon Nitirde is non-porous, non-magentic, non corrosive, lighter than steel and, in ball form, is harder than steel. Because ceramic balls are non-porous they are virtually frictionless and are capable of spinning faster than steel balls.

Silicon Nitride Balls Advantage:

* Fine crystalline Never rust,
* Can roll without oil or grease,
* Excellent corrosion resistance withstands attack from harsh chemicals and demanding environmental conditions,
* Lightweight: Silicon Nitride weighs 60% less than steel which reduces centrifugal force, skidding,
* Wear under high speed and acceleration.

 

Our Silicon Nitride Ceramic Ball size is from 0.5mm to 38mm( from 8/5" up to 2-1/4" ) and there are many Size and Grade for choose, such as G5 , G10, G100 and so on. Many Sizes are stock have, so the lead time is very short. Silicon Nitride Ceramic Bearing Balls are widely use in oil industry, copper tube manufacture , hybrid bearing and full ceramics applications.

 

Silicon Nitride Ball Sizes Overview:

Grade	Vdws	SPH	Vdwl	Ra
G3	0.05-0.08	≤0.08	<0.13	0.01
G5	0.08-0.13	≤0.13	<0.25	0.014
G10	0.15-0.25	≤0.25	<0.5	0.02
G16	0.2-0.4	≤0.4	<0.8	<0.025
G20	0.3-0.5	≤0.5	<1	<0.032
G100	0.4-0.7	0.4-0.7	<1.4	<0.0105

Silicon Nitride Ceramic Properties
Properties			Units	Silicon Nitride (Si3N4)
						HPSi3N4	GPSi3N4
Mechanical	Density	g/cm3	3.24~3.28	3.24~3.26
		Color	--	Gray	Gray
		Water Absorption	%	0	0
		Vickers Hardness	Gpa	14	14
		Flexural Strength(20°C)	Mpa	850-900	750-800
		Compressive Strength(20°C)	Mpa	3000	3000
Thermal	Thermal Conductivity(20°C)	W/m.K	42	22
		Thermal Shock Resistance(20°C)	Δ T(C)	617	605
		Maximum Use Temperature	°C	1500	1500
Electrical	Volume Resistivity(25°C)	Ω.cm	--	--

 

 

Silicon Nitride Ceramic 4 Types:

* Reaction-Bonded Silicon Nitride (RBSN)
* Hot Pressed Silicon Nitride (HPSN)
* Sintered Reaction-Bonded Silicon Nitride (SRBSN)
* Sintered Silicon Nitride (SNN)

Typical Silicon Nitride Uses:

 

.Rotating bearing balls and rollers

.Cutting tools

.Engine moving parts - valves, turbocharger rotors

.Engine wear parts - cam followers, tappet shims

.Turbine blades, vanes, buckets

.Metal tube forming rolls and dies

.Precision shafts and axles in high
.wear environments .Weld positioners

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