Assignment
The equipment is used as part of roller conveyors of mechanized technological lines for applying external protective coatings to pipes with a diameter of up to 1420 mm.
Constructive execution
The roller is a solid rubber-coated bandage tire pressed onto the hub rim.
The transmission of torque to the roller from the drive reducer is carried out through the shaft, which has a keyed connection with the bushing and is fixed on the bearing supports.
Distinctive features
Unlike similar imported equipment, the rollers produced by Uralshina LLC are serviceable and maintainable.
There is a possibility of multiple replacement of the bandage tire upon reaching the critical wear values of the rubber mass without replacing other structural elements, which is achieved by the execution of the “shaft-hub” and “rim-massive tire” assemblies in a collapsible version.
Specifications
It is possible to complete it with a rubber mass with physical and mechanical parameters adapted to the technological features of the customer’s operation, subject to the fundamental technical feasibility of its manufacture.
| Indicator name |
Rubber compound code |
|
|
4с-18-779 |
4э-1386 |
|
| Conditional strength at break, kgf / cm2 |
193 |
180 |
| Conditional stress at 100% elongation, kgf / cm2 |
15 |
75 |
| Conditional stress at elongation of 300%, kgf / cm2 |
35 |
– |
| Elongation at break, % |
617 |
235 |
| Residual elongation,% |
20 |
4 |
| Tear resistance, kgf / cm |
33 |
50 |
| Hardness, units Shora A |
50 |
75 |
| Density, kgf / cm3 |
1,29 |
1,17 |
| Rebound elasticity,% |
54-56 |
– |
Technical and operational indicators for aggressive media and conditions
Product operating conditions | |
Temperature, ° С (max) | 220, with cooling systems |
The presence of aggressive environments | Aqueous solutions in concentration (no more): sodium dichromate 200-250 g / l, H2SO4 8-10 g / l, HNO3 80-100 g / l, Na2SO4 4-6 g / l. nephras (traces) |
Product load, t | Radial, 1.3 |
Pipe contact type | Slippage during roller rotation |
Roughness of the pipe surface, Rz (max) | 350 ÷ 400 (1st class) |
Wear resistance, abrasion | Guaranteed service life – not less than 2100 hours |
Configuration options
It is possible to complete the rollers with various shaft-hub assemblies for adaptation to the customer’s technological lines.
Standard complete set with solid tire MShKB 195.000 520x200x360 (outer diameter of the tire x width of the tire x inner diameter of the tire)
Roller ГЯАР.303788.195.000
Complete with massive bus MShKB 196.000 559х250х411
Roller ГЯАР.303788.196.000
Complete with massive bus MShKB 196.000 559х250х411
Roller ГЯАР.303788.197.000
