The main advantages of rolling balls process in comparison to forging and stamping are:
-
rolled balls have more accurate dimensions and form;
-
the output when rolling balls is by 3-8 times higher;
-
metal consumption is reduced up to 15% when rolling balls for antifriction bearings;
-
service life of rolls of rolling mills exceeds service life of dies in several times;
-
continuity of rolling process permits to automatize and mechanize ball production.
SPECIFICATION OF THE MILLS
|
Blank length, mm |
Diameter of rolled balls |
||
|---|---|---|---|
|
25-50 |
40-100 |
80-125 |
|
|
3000 - 5000 |
3500 - 6000 |
3000 - 6000 |
|
|
Material |
Bearing steels, low and medium carbon steels and steels for grinding balls |
Medium carbon, low and medium alloyed steels |
Medium carbon low and medium alloyed steels |
|
Heating temperature, C° |
1050 - 1150 |
1050 - 1150 |
1050 - 1150 |
|
Output, t/h |
1,3 - 3,5 |
5 - 7,7 |
8 - 18 |
|
Power of main drive motor, kW |
250 |
640 |
1200 |
|
Mill dimensions in plan, mm: Length width |
11500 3600 |
14500 5700 |
19500 6700 |
Long-term experience of design and manufacture of ball rolling mills both for Russian and foreign enterprises (Bulgaria, Czechoslovakia, Sweden, India, and Mexico) as well as successful experience of their operation guarantee the high quality of the delivered equipment.