Key Property

Compared with steel ball, ZrO2 ball has following advantages:

1. 23% lighter than steel ball, which means less centrifugal force and less friction on the groove during high speed and acceleration.
2. Smaller friction coefficient, more freely rolling.
3. Can be used at higher temperature up to 750ºC.
4. Never rust, and can roll without lubrication.
5. More corrosion resistant than steel
6. No metal contamination.
7. Non-magnetic.
8. Electric isolation.

 

TECHNICAL DATA

Type	ZCB-95FL
Color	White
Zirconia Content(%)	95
Density (g/cm3)	6.02
Main Characteristics	High mechanical strength; Good wear and heat resistance
Main Applications	Wear and heat resistance parts

 

Size and Grade:

Diameter specification: Ф 0.40mm~ Ф 50.8mm

Available supply level: G5- ~ G200

 

Application:

ZrO2 ball is mainly used for valve ball, full ceramic bearing, metering ball, track ball, and precision grinding ball. It can be used in fields requiring chemical resistance, high temperature, electronic insulation, magnetic insulation, non-lubrication. ZrO2 ball is an idea substitute for steel ball in chemical corrosion application. As valve ball, ZrO2 ball is now successfully used in high pressure homogenizer, diaphragm pump, metering pump, oil well pump, high pressure sprayer etc.

Size Details:

Metric Size (mm)	Inch Sizes	Weight (g/pc)	Pcs/KG		Metric Size (mm)	Inch Sizes	Weight (g/pc)	Pcs/KG
1		0.0031	318471		6.35	1/4	0.429	2332
1.50	1/16	0.0057	176929		6.747	17/64	0.514	1944
1.588		0.0067	149115		7.144	9/32	0.611	1638
2		0.0134	74642		7.938	5/16	0.838	1194
2.381	3/32	0.023	44238		8.731	11/32	1.115	897
3.175	1/8	0.054	18657		9.525	3/8	1.447	691
3.5		0.072	13927		10.318	13/32	1.840	544
3.969	5/32	0.105	9551		11.113	7/16	2.298	435
4.763	3/16	0.181	5526		11.509	29/64	2.553	392
5		0.209	4777		11.906	15/32	2.826	354
5.556	7/32	0.287	3482		12.303	31/64	3.119	321
5.953	15/64	0.353	2831		12.7	1/2	3.430	292
Metric Size (mm)	Inch Sizes	Weight (g/pc)	Pcs/KG		Metric Size (mm)	Inch Sizes	Weight (g/pc)	Pcs/KG
13.494	17/32	4.115	243		25.4	1	27.443	36
14.29	9/16	4.885	205		26.99	17/16	32.919	30
15.081	19/32	5.744	174		28.575	9/8	39.074	26
15.875	5/8	6.700	149		30.163	21/16	45.957	22
16.668	21/32	7.755	129		31.75	5/4	53.599	19
17.463	11/16	8.918	112		33.338	21/16	62.051	16
18.256	23/32	10.189	98		34.925	11/8	71.341	14
19.05	3/4	11.577	86		36.512	23/16	81.515	12
19.844	25/32	13.086	76		38.1	3/2	92.620	11
20.638	13/16	14.721	68		41.275	13/8	117.758	8
22.225	7/8	18.385	54		47.625	15/8	180.898	6
23.812	15/16	22.611	44		50.8	2	219.543	5

Remarks: 1) white color as standard. 2) plenty of stock. 3) non-standard size could be supplied. 4) thermal expansion coefficient of ZrO2 is 10.5*10-6/℃, similar to that of steel, which means ZrO2 has well fitting with metal. However, it also results in larger size change with temperature fluctuation. Also, ZrO2 fractures in rolling-failure, thus it is less stable than Si3N4 in key application.