Ultra High Precision Ceramic Ring Gauges Ceramic Setting Ring

Innovacera developed a series of ceramic accessories for Inside Micrometers, Holtest and Dial Bore Gages. The ceramic material used mostly is zirconia.

The zirconia ceramic setting ring advantages:

High wear resistance and long service life
The coefficient of thermal expansion is very small, the effect of temperature is very small
The hardness is very high, there is no need to worry about surface scars.
Ring gauge management is simple (regular inspection interval is long, saving cost).

The Zirconia Ceramic Ring Gauges Technology:

Surface Roughness: Not more than Ra0.1um

Straight Angle: 0.05/φ100

Parallelism: Not more than0.015mm

Each 0.5mm as one size, from 1mm to 50mm.

Size	Dimensional interval	Roundness	Outer diameter tolerance:	Inner diameter tolerance	Hardness
1-29mm	0.5mm	0.5um	±1um	±1um	1200HV
30-50mm	0.5mm	0.8um	±1.6um	±1.5um	1200HV

Some Zirconia Ceramic Ring Gauges Innovacera made and size detail:

9mm, 10mm, 18mm, 20mm, 24mm, 25mm, 28mm

D(mm)	d(mm)	T(mm)	outer chamfer(mm)	inner chamfer(mm)
1-2	22	4	0.4	0.3
2.5-4.5	22	5	0.4	0.3
5-9.5	32	8	0.8	0.5
10-14.5	38	10	1.2	0.5
15-19.5	45	12	1.2	1.0
20-24.5	53	14	1.2	1.0
25-31.5	63	16	1.5	1.0
32-39.5	71	18	2.0	1.0
40-50	85	20	2.0	1.0