Bearing steel balls have many specifications, usually manufactured in accordance with inch dimensions. Accuracy of precision steel balls can be accurate to the thousandth units of micrometers (μm).
The weights of different specifications of steel balls is different. Following, the specification and weight of bearing balls are translated.
Conversion Chart of Weight & Diameter of Steel Balls
Diameter |
kg/1000pcs |
pcs/kg |
Diameter |
kg/1000pcs |
pcs/kg |
||||||||
mm inch |
kg |
about |
mm inch |
kg |
about |
||||||||
0.5000 |
0.00051 |
1960780 |
13.4938 17/32 |
10.0 |
100 |
||||||||
0.6800 |
0.00128 |
781250 |
14.0000 |
11.18 |
89 |
||||||||
0.8000 |
0.00209 |
478470 |
14.2875 9/16 |
11.9 |
84. |
||||||||
1.0000 |
0.00408 |
245100 |
15.0812 19/32 |
14.0 |
71.4 |
||||||||
1.2000 |
0.00705 |
141840 |
15.8750 5/8 |
16.3 |
61.3 |
||||||||
1.3000 |
0.00893 |
111980 |
16.0000 |
16.69 |
59.9 |
||||||||
1.4500 |
0.0124 |
80645 |
16.6688 21/32 |
18.9 |
52.9 |
||||||||
1.5880 1/16 |
0.016 |
62350 |
17.0000 |
20.02 |
50 |
||||||||
1.7500 |
0.0218 |
45871 |
17.4625 11/16 |
21.7 |
46.1 |
||||||||
2.0000 |
0.0326 |
30700 |
18.2562 23/32 |
24.8 |
40.3 |
||||||||
2.3812 3/32 |
0.055 |
18182 |
19.0000 |
27.96 |
35.77 |
||||||||
2.5000 |
0.0637 |
15698 |
19.0500 3/4 |
28.2 |
35.5 |
||||||||
2.7780 |
0.088 |
11349 |
19.8438 25/32 |
31.9 |
31.4 |
||||||||
3.0000 |
0.11 |
9091 |
20.6370 13/16 |
35.8 |
27.9 |
||||||||
3.1750 1/8 |
0.131 |
7634 |
21.0000 |
37.75 |
26.49 |
||||||||
3.5000 |
0.175 |
5717 |
21.4313 27/32 |
40.1 |
24.9 |
||||||||
3.9688 5/32 |
0.255 |
3922 |
22.2250 7/8 |
44.8 |
22.3 |
||||||||
4.0000 |
0.261 |
3831 |
23.0000 |
49.59 |
20.17 |
||||||||
4.7625 3/16 |
0.441 |
2268 |
23.0188 29/32 |
49.8 |
20.1 |
||||||||
5.0000 |
0.51 |
1961 |
23.8125 15/16 |
55.1 |
18.2 |
||||||||
5.5562 7/32 |
0.699 |
1431 |
24.0000 |
56.34 |
17.75 |
||||||||
5.9531 15/64 |
0.86 |
1163 |
24.6063 31/32 |
60.8 |
16.5 |
||||||||
6.0000 |
0.881 |
1136 |
25.0000 |
63.68 |
15.7 |
||||||||
6.3500 1/4 |
1.04 |
962 |
25.4000 1 |
66.8 |
15 |
||||||||
6.5000 |
1.119 |
894 |
26.1938 1-1/32 |
73.3 |
13.64 |
||||||||
6.7469 17/64 |
1.25 |
800 |
26.9875 1-1/16 |
80.2 |
12.47 |
||||||||
7.1438 9/32 |
1.49 |
671 |
27.7812 1-3/32 |
87.4 |
11.4 |
||||||||
7.9375 5/16 |
2.04 |
490 |
28.0000 |
89.47 |
11.18 |
||||||||
8.0000 |
2.09 |
478 |
28.5750 1-1/8 |
95.2 |
10.5 |
||||||||
8.5000 |
2.5 |
400 |
30.1625 1-3/16 |
112 |
8.93 |
||||||||
8.7312 11/32 |
2.71 |
369 |
31.7500 1-1/4 |
130.6 |
7.66 |
||||||||
9.0000 |
2.97 |
337 |
33.3375 1-5/16 |
151.1 |
6.62 |
||||||||
9.5250 3/8 |
Different types of Stainless steel balls Next: Ball Quality Hot Products:
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