Silicon Nitride Ceramic Balls For Special Bearings

Changzhou Huari Steel Ball Co., Ltd  is an ISO9001: 2015 and IATF16949: 2016 certified professional manufacturer of steel balls with experience of more than 30 years. We owns more than 500 sets advanced production equipment and more than 100 sets of testing devices to ensure the quality of the steel balls. 

Custom service to meet our customers' needs are our core strength.

Sizes & Material

The factory produces ball sizes from 0.5mm to 250mm. 

Ceramic Balls: Al2O3 Silicon Nitride Si3n4.

Product Description

Usage	Ceramic grinding media
Al2O3(%)	>92 Al2O3
Specific density (g/cm3)	>3.60
Color	High purity white
Feature	Excellent wear-resistance
Feature	High grinding ,high density
Feature	High strength ,very good roundness
Surface	Smooth and shiny with gloss
Forming method	By rolling
Diameter (mm)	0.5~90mm
Material	Silicon Nitride Si3n4
Color	Black
Standard	Standard Size
Shape	Ball
Sintering way	Gas pressure sintered
Max working temperature	1400ºC
Used	Ceramic Bearing

Grade: G10 to G1000
Grade	ball diameter	spherical	surface	lot diameter	nomainal ball
	variation	deviation	roughness	variation	deviation tolerance
	Vdws	Sph	Ra	Vdwl	Tdn
	not over
	μm
10	0.25	0.25	0.02	0.5	*
16	0.4	0.4	0.025	0.8	*
20	0.5	0.5	0.032	1	*
24	0.6	0.6	0.04	1.2	*
28	0.7	0.7	0.05	1.4	*
40	1	1	0.06	2	*
60	1.5	1.5	0.08	3	*
100	2.5	2.5	0.1	5	±12.5
200	5	5	0.15	10	±25
500	12.5	12.5	*	25	±50
1000	25	25	*	50	±125