When replacing, the support roll is placed on the receiving table. Then, the receiving table is lifted until the gap between the inner bearing ring and the roll journals is loosened. The bearings are fixed on the table's carriage. After that, the bearing mounting-disassembly tables are moved until the bearing housing with the bearing clears the support roll's journals. The support roll is then removed from the receiving table by a crane and sent for grinding.
The assembly process proceeds as follows: the lifting drive aligns the axis of the support roll and the bearings. The assembly of the bearings and the support roll is carried out by sliding the bearings onto the roll journals until they reach the stop.Load capacity of the stand – 15 tons (weight of one roll and two bearings).
- Operating temperature of the stand - +5…+40°C.
- Maximum height of the stand – 800 mm.
- Maximum width of the stand – 1200 mm.
- Maximum length of the stand – 7000 mm.
- Lubrication system for friction units – manual.
Technical specifications of the support rolls and bearings:
- Support roll length 3420 mm;
- Support roll length assembled with bearings 4133 mm;
- Bearing height 910 mm;
- Bearing width 1180 mm;
- Weight of the work roll without bearings 7096 kg;
- Weight of the work roll assembled with bearings 15000 kg.
Stand reliability requirements:
- Stand service life 15 years;
