Steel balls (bearing balls)

We specialise in the supply of steel balls for the industry.
Since 2009 we are an authorised distributor of the largest manufacturer of bearing balls in Poland - Tsubaki-Hoover Poland Sp. z o.o.

Balls made of chrome steel are used mainly for bearings and many other industrial applications. Their characteristic feature is smooth surface, high hardness and they are able to carry high loadings thanks to new through hardening technology. The best quality steel is used for balls production coming only from verified source that meets high quality requirements. Small diameter balls are made of wire while large balls are made of forges. To ensure high ball surface quality the newest heat treatment equipment is used with very precise atmosphere and temperature control system that assure identical hardness and proper microstructure of each single ball. Manufacturing balls with strictly defined tolerance, surface precision and repeatable quality is guaranteed by statistical process control (SPC) introduced for all production process. 

Gumet supply steel balls of any diameter, in different classes and materials.

Materials for balls:

We offer balls:

Now we expand new materials:

CONTACT:
Michał Chojnacki
phone: +48 81 825 32 41
mobile: +48 607 480 680
fax: +48 81 825 22 31
e-mail: mchojnacki@gumet.pl

Gallery

Classification

Ball grades
5 5/32 – 3/8"
10 5/32 – 7/8"
16 5/32 – 1 1/16"
20-28 5 – 28
40 5/32 – 50,000 mm
100 5/32 – 100,000 mm
200 5/32 – 250,000 mm

Small balls

Ball type Ball weight
mm inch kg/1000 pcs.
3,969 5/32" 0,2543
4   0,2604
4,5   0,3707
4,762 3/16" 0,4395
5   0,5086
5,5   0,6769
5,55   0,6955
5,556 7/32" 0,6979
5,953 15/64" 0,8582
6   0,8788
6,35 1/4" 1,042
6,5   1,1174
6,747 17/64" 1,25
7   1,3954
7,144 9/32" 1,483
7,5   1,7163
7,938 5/16" 2,035
8   2,083
8,5   2,4987
8,731 11/32" 2,708
9,128 23/64" 3,0942
9,525 3/8" 3,516
9,922 25/64" 3,9739
10   4,068
10,319 13/32" 4,469
10,5   4,7096
11   5,4153
11,112 7/16" 5,582
11,509 29/64" 6,2019
11,906 15/32" 6,867

Medium balls

Ball type Ball weight
mm inch kg/1000 pcs.
12   7,026
12,303 31/64" 7,576
12,5   7,946
12,7 1/2" 8,333
13,494 17/32" 9,996
14   11,158
14,288 9/16" 11,87
14,6   12,662
14,8   13,1941
15,081 19/32" 13,96
15,5   15,15
15,875 5/8" 16,28
16,104   16,991
16,205   17,313
16,669 21/32" 18,84
17   19,977
17,462 11/16" 21,662
17,5   21,805
17,691   22,5256
17,7   22,56
18   23,7275
18,256 23/32" 24,753
19,05 3/4" 28,13
19,844 25/32" 31,791
20   32,5469
20,073   32,9045
20,638 13/16" 35,762
21,431 27/32" 40,044
22   43,
22,225 7/8" 44,662

Big balls

Ball type Ball weight
mm inch kg/1000 pcs.
23,001   49,5062
23,019 29/32 49,622
23,23   50,9996
23,812 15/16 54,929
24,606 31/32 60,609
25   63,568
25,4 1" 66,67
26,988 1" 1/16 79,97
28,575 1" 1/8 94,9
30   109,846
30,162 1" 3/16 111,6
31,75 1" 1/4 130,2
33,338 1" 5/16 150,7
34,925 1" 3/8 173,3
35   174,4
36,512 1" 7/16 198
38,1 1" 1/2 225
39,688 1" 9/16 254,4
40   260,375
41,275 1" 5/8 286,1
42,862 1" 11/16 320,359
44,45 1" 3/4 357,301
45   370,729
47,625 1" 7/8 439,465
50   508,545
50,8 2" 533,348
52,387 2" 1/16 584,911
53,975 2" 1/8 639,73
57,15 2" 1/4 759,396
60,325 2" 3/8 893,123
63,5 2" 1/2 1042
66,675 2" 5/8 1206
69,85 2" 3/4 1386
76,2 3" 1800
79,375 3" 1/8 2035
80   2083
90   2966
100   4069
108   5126
110   5416
120   7031
130   8938
150   13733
180   23727
200   32547
250   63578

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