Al3O2 Ball,Alumina Ball,Al3O2 Ceramic Ball - China Al3O2 Ball Manufacturer & Supplier

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This material suitable for applications corrosive environment, high speeds and extreme temperatures are factors. Long life and the need for minimum lubrication makes this material perfect for harsh conditions. Al2O3 is anti-magnetic.

Al2O3 content	≥99.5%
Density	Al2O3-3.9g/CM3
Hardness	Al2O3-1600~1800HV
Max Use Temperature	Al2O3-2252 F.

Available size range : 1/32” ~ 2”

Standards for Geometry and surface

Grade	Available Size Range	Ball Diameter Variation(µm)	Deviation from Spherical Form(µm)	Lot Diameter Variation(µm)	Surface Roughness(µm Ra)
5	1/32”~1/2”	0.13	0.13	0.15	0.020
10	1/32”~1”	0.25	0.25	0.25	0.025
15	1/32”~5/8”	0.35	0.35	0.35	0.025
20	1/32”~15/8”	0.5	0.5	0.5	0.040
40	1/64”~2"	1	1	1	0.080
60	1-3/4”~2"	1.5	1.5	1.5	0.100

Ceramic Ball accuracy class GB308-2002 ISO3290-1998 (E) Standard

Grade	Ball Diameter fluxional ( μ m )	Spheres( △ Sph) Tolerance( μ m)	Surface roughness(Ra, μ m)
3	0.08	0.08	0.010
5	0.13	0.13	0.014
10	0.25	0.25	0.020
16	0.40	0.40	0.025
20	0.50	0.50	0.032
24	0.60	0.60	0.040
28	0.70	0.70	0.050
40	1.00	1.00	0.060
60	1.50	1.50	0.080