Steel Balls manufacturer

Professional bearing manufacturer in Ningbo, China.We offer all kinds of steel balls as below shows

Bearing steel balls

Bearing steel ball has a long history and widely used in precision bearing industry and life field. It can be said that most of the rotating places have the existence of steel balls, commonly known as steel balls and balls.

Balls Size

Diameter		kgsper 1000 pcs	No. of balls per kg	Diameter		kgsper 1000 pcs	No. of balls per kg
mm	inch			mm	inch
1/8 – 5/32	3.1750 3.5000 3.9688	0.131 0.175 0.255	7634 5717 3922	– 9/16 19/32	14.0000 14.2875 15.0812	11.18 11.90 14.00	89.00 84.00 71.40
– 3/16 –	4.0000 4.7625 5.0000	0.261 0.441 0.510	3831 2268 1961	5/8 – 21/32	15.8750 16.0000 16.6688	16.30 16.69 18.90	61.30 59.90 52.90
13/64 7/32 15/64	5.1594 5.5562 5.9531	0.560 0.699 0.860	1786 1431 1163	– 11/16 23/32	17.0000 17.4625 18.2562	20.02 21.70 24.80	50.00 46.10 40.30
– 1/4 –	6.0000 6.3500 6.5000	0.881 1.040 1.119	1136 962 894	– 3/4 25/32	19.0000 19.0500 19.8438	27.96 28.20 31.90	35.77 35.50 31.40
17/64 17/64 5/16	6.7469 7.1438 7.9375	1.250 1.490 2.040	800 671 490	13/16 – 27/32	20.6375 21.0000 21.4313	35.80 37.75 40.10	27.90 26.49 24.90
– – 11/32	8.0000 8.5000 8.7312	2.090 2.500 2.710	478 400 369	7/8 – 29/32	22.2250 23.0000 23.0188	44.80 49.59 49.80	22.30 20.17 20.10
– 3/8 –	9.0000 9.5250 10.0000	2.970 3.520 4.080	337 284 245	15/16 – 31/32	23.8125 24.0000 24.6063	55.10 56.34 60.80	18.20 17.75 16.50
13/32 – 7/16	10.3188 11.0000 11.1125	4.480 5.420 5.600	223 185 179	– 1 1 1/16	25.0000 25.4000 26.9875	63.68 66.80 88.50	15.70 15.00 11.30
– 29/64 15/32	11.5000 11.5094 11.9062	6.220 6.220 6.880	161 161 145	1 1/8 1 3/16 1 1/4	28.5750 30.1625 31.7500	104.50 127.80 143.80	9.56 7.83 6.96
-31/64 1/2 17/32	12.0000 12.3031 12.7000 13.4938	7.040 7.600 8.350 10.000	142 132 120 100	1 5/16 1 3/8 1 7/16 1 1/2	33.3375 34.9250 36.5125 38.1000	164.30 191.70 230.00 287.50	6.09 5.22 4.35 3.48