TGA
TvnSeal Engineering Plastics Technology Co., Ltd. is a national high-tech enterprise specializing in the R&D and manufacturing of high-performance sealing materials and special polymer new materials.
In heavy machinery manufacturing, this type of seal is commonly applied to the shaft ends of grinders, metallurgical rolling mills or drive shafts of large gearboxes under lubricated operating conditions.
| Surface Type | Ra | Rmax |
| Contacting Shaft Surface | ≤0.6um | ≤2.5um |
| Housing | ≤4.0um | ≤15.0um |
| The mating sealing contact surfaces shall be processed by cross-feed non-directional lapping, to prevent leakage caused by spiral machining marks. The surface hardness shall be approximately 60 HRC (minimum hardened layer thickness: 0.5 mm).As peripheral linear speed rises, the roughness Ra of the contact surface shall be increased appropriately; the surface must not be excessively smooth to maintain a proper lubricating oil film. The recommended minimum value: Ra min = 0.1 um.At a cutting depth c = Rz/2 and reference line Cref = 0%, the material bearing length ratio Mr shall range from over 50% up to a maximum of 90%.Corrosion, scratches and pores on the shaft surface must be avoided. | ||
| Product Features |
| Integrated design of fabric-reinforced outer shoulder of oil seal and solid rubber sealing lip, adopting spring preloaded lip structure. |
| Product Advantages |
| 1. Widely applied in heavy machinery manufacturing for shaft ends of grinders, metallurgical rolling mills and drive shafts of large gearboxes under lubricated working conditions. 2. The fabric-reinforced outer rim features high rigidity and excellent static sealing performance; 3. The sealing lip maintains long-lasting radial contact pressure; 4. The lip offers superior wear resistance; 5. Split-type seals are available for easy installation; 6. TGA seals are generally installed back-to-back. |
| Application Operating Conditions | |||
| Medium | NBR | FKM | HNBR |
| Mineral Oils | -30℃ ~ +100℃ | -10℃ ~ +180℃ | -20℃ ~ +140℃ |
| Water | +5℃ ~ +100℃ | +5℃ ~ +100℃ | +5℃ ~ +100℃ |
| Lubricating Greases | -30℃ ~ +100℃ | -10℃ ~ +180℃ | -20℃ ~ +140℃ |
| Pressure (MPa) | 0.05 | 0.05 | 0.05 |
| Rotational Speed (m/s) | 20 | 25 | 25 |
Applications
Chemical Industry
Used in pumps, valves, and piping systems for chemical processing plants.
Pharmaceutical
FDA-compliant seals for drug manufacturing and processing equipment.
Food Processing
Sealing solutions for food and beverage processing machinery.
Oil & Gas
High-pressure seals for oil drilling and refining equipment.
Automotive
Engine and transmission seals for automotive applications.
Aerospace
Precision seals for aerospace and aviation equipment.