Ceramic Ball

Ceramic balls are spherical, rolling elements that provide higher stiffness, lower thermal expansion, lighter weight, increased corrosion resistance, and higher electrical resistance than steel balls. They are made from a variety of ceramic materials.

LILY Bearing provide a wide range of ceramic ball options across a variety of sizes. Material options include Silicon nitride (Si3N4), Zirconia (ZRO2), Alumina (Al2O3) and Silicon carbide (SIC) from 0.4mm to just over 115mm in diameter with the most common sizes in between. Precision grades provided are 5, 10, 16, 25 and 100.

Different ceramic material have different properties, here is the introduction of ceramic materials and their properties.

Silicon Nitride Balls

Silicon Nitride balls feature these advanced characteristics:
Fine crystalline Never rust, and can roll without oil or grease.

Uses:
The most common use for silicon nitride balls is in bearings. Silicon nitride bearing balls have a coefficient of thermal expansion just 25% if most steel balls, so there is less friction generated in the bearing as heat increases. The low thermal conductivity of silicon nitride balls reduces the amount of heat absorbed, thus reducing cooling system requirements.

Diameter		Sphericity	Balls Qty/Kg
mm	inch	Sphericity	Balls Qty/Kg
0.5		99.9995%
0.7		99.9995%
	1/32	99.9995%
0.8		99.9995%
1.0		99.9995%
1.2		99.9995%	345389
1.3		99.9995%
1.5		99.9995%	176839
	1/16	99.9995%	149180
	5/64	99.9995%
2.0		99.9995%	74604
	3/32	99.9995%	44204
2.5		99.9995%	38197
	7/64	99.9995%
3.0		99.9995%	22105
	1/8	99.9995%	18647
3.5		99.9995%	13920
	5/32	99.9995%	9547
4.0		99.9995%	9325
4.5		99.9995%	6550
	3/16	99.9995%	5525
5.0		99.9995%	4775
5.5		99.9995%	3587
	7/32	99.9995%	3480
	15/64	99.9995%	2829
6.0		99.9995%	2763
	1/4	99.9995%	2331
6.5		99.9995%	2173
	17/64	99.9995%	1943
7.0		99.9995%	1740
	9/32	99.9995%	1637
7.5		99.9995%	1415
	5/16	99.9995%	1193
7.98		99.9995%
8.0		99.9995%	1166
8.5		99.9995%	972
	11/32	99.9995%	897
9.0		99.9995%	819
9.5		99.9995%	696
	3/8	99.9995%	691
10.0		99.9995%	597
	13/32	99.9995%
	13/31	99.9995%	543
11.0		99.9995%	448
	7/16	99.9995%	435
11.5		99.9995%	392
	29/64	99.9995%	392
	15/32	99.9995%	354
12.0		99.9995%	345
	31/64	99.9995%	320
	1/2	99.9995%	291
13.0		99.9995%	272
	17/32	99.9995%	243
14.0		99.9995%	218
	9/16	99.9995%	205
15.0		99.9995%	177
	19/32	99.9995%	174
	5/8	99.9995%	149
16.0		99.9995%	146
	21/32	99.9995%	129
17.0		99.9995%	121
	11/16	99.9995%	112
18.0		99.9995%	102
	23/32	99.9995%	98
19.0		99.9995%	87
	3/4	99.9995%	86
	25/32	99.9995%	76
20.0		99.9995%	75
	13/16	99.9995%	68
21.0		99.9995%	64
22.0		99.9995%	56
	7/8	99.9995%	54
23.0		99.9995%	49
	29/32	99.9995%	49
	15/16	99.9995%	44
24.0		99.9995%	43
25.0		99.9995%	38
	1	99.9995%	36
26.0		99.9995%	34
	1 1/16	99.9995%	30
28.0		99.9995%	27
	1 1/8	99.9995%	26
30.0		99.9995%	22
	19/16	99.9995%
	5/4	99.9995%
	1 3/8	99.9995%
35.0		99.9995%
	1 1/2	99.9995%
	1 5/8	99.9995%
	1 11/16	99.9995%
	1 7/8	99.9995%
	2	99.9995%

Zirconia Balls

Precision zirconia balls are available in many sizes. Zirconia balls are most commonly used as check valves in flow control applications. When subject to stress by impact, grinding, or cracking, a zirconia ball undergoes “transformation toughening” which stops cracks from spreading and actually makes the ball stronger in the stressed area than what it was originally.

Diameter		Sphericity	Balls Qty/Kg
mm	inch	Sphericity	Balls Qty/Kg

Diameter		Sphericity	Balls Qty/Kg
mm	inch	Sphericity	Balls Qty/Kg
0.5		99.9995%
0.7		99.9995%
	1/32	99.9995%
0.8		99.9995%
1.0		99.9995%
1.2		99.9995%	183291
1.3		99.9995%
1.5		99.9995%	93845
	1/16	99.9995%	79167
	5/64	99.9995%
2.0		99.9995%	39519
	3/32	99.9995%	23458
2.5		99.9995%	20270
	7/64	99.9995%
3.0		99.9995%	11731
	1/8	99.9995%	9896
3.5		99.9995%	7387
	5/32	99.9995%	5066
4.0		99.9995%	4949
4.5		99.9995%	3476
	3/16	99.9995%	2932
5.0		99.9995%	2534
5.5		99.9995%	1904
	7/32	99.9995%	1847
	15/64	99.9995%	1501
6.0		99.9995%	1466
	1/4	99.9995%	1237
6.5		99.9995%	1153
	17/64	99.9995%	1031
7.0		99.9995%	923
	9/32	99.9995%	869
7.5		99.9995%	751
	5/16	99.9995%	633
7.98		99.9995%
8.0		99.9995%	619
8.5		99.9995%	516
	11/32	99.9995%	476
9.0		99.9995%	434
9.5		99.9995%	369
	3/8	99.9995%	367
10.0		99.9995%	317
	13/32	99.9995%
	13/31	99.9995%	288
11.0		99.9995%	238
	7/16	99.9995%	231
11.5		99.9995%	208
	29/64	99.9995%	208
	15/32	99.9995%	188
12.0		99.9995%	183
	31/64	99.9995%	170
	1/2	99.9995%	155
13.0		99.9995%	144
	17/32	99.9995%	129
14.0		99.9995%	115
	9/16	99.9995%	109
15.0		99.9995%	94
	19/32	99.9995%	92
	5/8	99.9995%	79
16.0		99.9995%	77
	21/32	99.9995%	68
17.0		99.9995%	64
	11/16	99.9995%	59
18.0		99.9995%	54
	23/32	99.9995%	52
19.0		99.9995%	46
	3/4	99.9995%	46
	25/32	99.9995%	41
20.0		99.9995%	40
	13/16	99.9995%	36
21.0		99.9995%	34
22.0		99.9995%	30
	7/8	99.9995%	29
23.0		99.9995%	26
	29/32	99.9995%	26
	15/16	99.9995%	23
24.0		99.9995%	23
25.0		99.9995%	20
	1	99.9995%	19
26.0		99.9995%	18
	1 1/16	99.9995%	16
28.0		99.9995%	14
	1 1/8	99.9995%	14
30.0		99.9995%	12
	19/16	99.9995%
	5/4	99.9995%
	1 3/8	99.9995%
35.0		99.9995%
	1 1/2	99.9995%
	1 5/8	99.9995%
	1 11/16	99.9995%
	1 7/8	99.9995%
	2	99.9995%

Aluminum Oxide Balls

Alumina Oxide ceramic balls may be used at temperatures up to 3180 ºF. Ceramic balls are extremely hard, resistant to abrasion, and immune to all furnace atmospheres. Applications where alumina oxide balls are used include chemical pumps, down-hole pumps, valves, bearings, gages, flowmeters, etc.

Diameter		Sphericity	Balls Qty/Kg
mm	inch	Sphericity	Balls Qty/Kg

Diameter		Sphericity	Balls Qty/Kg
mm	inch	Sphericity	Balls Qty/Kg
0.5		99.9975%
0.7		99.9975%
	1/32	99.9975%
0.8		99.9975%
1.0		99.9975%
1.2		99.9975%	283396
1.3		99.9975%
1.5		99.9975%	145099
	1/16	99.9975%	122404
	5/64	99.9975%
2.0		99.9975%	61213
	3/32	99.9975%	36270
2.5		99.9975%	31341
	7/64	99.9975%
3.0		99.9975%	18137
	1/8	99.9975%	15301
3.5		99.9975%	11422
	5/32	99.9975%	7834
4.0		99.9975%	7652
4.5		99.9975%	5374
	3/16	99.9975%	4533
5.0		99.9975%	3918
5.5		99.9975%	2943
	7/32	99.9975%	2855
	15/64	99.9975%	2321
6.0		99.9975%	2267
	1/4	99.9975%	1913
6.5		99.9975%	1783
	17/64	99.9975%	1594
7.0		99.9975%	1428
	9/32	99.9975%	1343
7.5		99.9975%	1161
	5/16	99.9975%	979
7.98		99.9975%
8.0		99.9975%	956
8.5		99.9975%	797
	11/32	99.9975%	736
9.0		99.9975%	672
9.5		99.9975%	571
	3/8	99.9975%	567
10.0		99.9975%	490
	13/32	99.9975%
	13/31	99.9975%	446
11.0		99.9975%	368
	7/16	99.9975%	357
11.5		99.9975%	322
	29/64	99.9975%	321
	15/32	99.9975%	290
12.0		99.9975%	283
	31/64	99.9975%	263
	1/2	99.9975%	239
13.0		99.9975%	223
	17/32	99.9975%	199
14.0		99.9975%	178
	9/16	99.9975%	168
15.0		99.9975%	145
	19/32	99.9975%	143
	5/8	99.9975%	122
16.0		99.9975%	120
	21/32	99.9975%	106
17.0		99.9975%	100
	11/16	99.9975%	92
18.0		99.9975%	84
	23/32	99.9975%	80
19.0		99.9975%	71
	3/4	99.9975%	71
	25/32	99.9975%	63
20.0		99.9975%	61
	13/16	99.9975%	56
21.0		99.9975%	53
22.0		99.9975%	46
	7/8	99.9975%	45
23.0		99.9975%	40
	29/32	99.9975%	40
	15/16	99.9975%	36
24.0		99.9975%	35
25.0		99.9975%	31
	1	99.9975%	30
26.0		99.9975%	28
	1 1/16	99.9975%	25
28.0		99.9975%	22
	1 1/8	99.9975%	21
30.0		99.9975%	18
	19/16	99.9975%
	5/4	99.9975%
	1 3/8	99.9975%
35.0		99.9975%
	1 1/2	99.9975%
	1 5/8	99.9975%
	1 11/16	99.9975%
	1 7/8	99.9975%
	2	99.9975%

Silicon Carbide Balls

Silicon carbide balls are less frequently used than other ceramic materials. Due to its raw material costs and difficulty to machine. Silicon carbide offers the best heat and corrosion resistance of all the ceramic materials. Silicon Carbide is best used under low loads, low to moderate speeds and in highly corrosive environments.

Diameter		Sphericity	Balls Qty/Kg
mm	inch	Sphericity	Balls Qty/Kg

Diameter		Sphericity	Balls Qty/Kg
mm	inch	Sphericity	Balls Qty/Kg
0.5		99.9995%
0.7		99.9995%
	1/32	99.9995%
0.8		99.9995%
1.0		99.9995%
1.2		99.9995%	349761
1.3		99.9995%
1.5		99.9995%	179077
	1/16	99.9995%	151068
	5/64	99.9995%
2.0		99.9995%	75548
	3/32	99.9995%	44764
2.5		99.9995%	38681
	7/64	99.9995%
3.0		99.9995%	22385
	1/8	99.9995%	18884
3.5		99.9995%	14096
	5/32	99.9995%	9668
4.0		99.9995%	9444
4.5		99.9995%	6632
	3/16	99.9995%	5595
5.0		99.9995%	4835
5.5		99.9995%	3633
	7/32	99.9995%	3524
	15/64	99.9995%	2865
6.0		99.9995%	2798
	1/4	99.9995%	2360
6.5		99.9995%	2201
	17/64	99.9995%	1968
7.0		99.9995%	1762
	9/32	99.9995%	1658
7.5		99.9995%	1433
	5/16	99.9995%	1209
7.98		99.9995%
8.0		99.9995%	1180
8.5		99.9995%	984
	11/32	99.9995%	908
9.0		99.9995%	829
9.5		99.9995%	705
	3/8	99.9995%	699
10.0		99.9995%	604
	13/32	99.9995%
	13/31	99.9995%	550
11.0		99.9995%	454
	7/16	99.9995%	440
11.5		99.9995%	397
	29/64	99.9995%	396
	15/32	99.9995%	358
12.0		99.9995%	350
	31/64	99.9995%	325
	1/2	99.9995%	295
13.0		99.9995%	275
	17/32	99.9995%	246
14.0		99.9995%	220
	9/16	99.9995%	207
15.0		99.9995%	179
	19/32	99.9995%	176
	5/8	99.9995%	151
16.0		99.9995%	148
	21/32	99.9995%	130
17.0		99.9995%	123
	11/16	99.9995%	113
18.0		99.9995%	104
	23/32	99.9995%	99
19.0		99.9995%	88
	3/4	99.9995%	87
	25/32	99.9995%	77
20.0		99.9995%	76
	13/16	99.9995%	69
21.0		99.9995%	65
22.0		99.9995%	57
	7/8	99.9995%	55
23.0		99.9995%	50
	29/32	99.9995%	50
	15/16	99.9995%	45
24.0		99.9995%	44
25.0		99.9995%	39
	1	99.9995%	37
26.0		99.9995%	34
	1 1/16	99.9995%	31
28.0		99.9995%	28
	1 1/8	99.9995%	26
30.0		99.9995%	22
	19/16	99.9995%
	5/4	99.9995%
	1 3/8	99.9995%
35.0		99.9995%
	1 1/2	99.9995%
	1 5/8	99.9995%
	1 11/16	99.9995%
	1 7/8	99.9995%
	2	99.9995%

Ceramic Ball

Silicon Nitride Balls

Zirconia Balls

Aluminum Oxide Balls

Silicon Carbide Balls

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