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TGA Product Features
Interwoven fabric reinforced oil seal outer edge shoulder and pure rubber sealing lip integrated design, spring pre-loaded oil seal lip design.
TGA Product Advantages
In the heavy machinery manufacturing industry, they are usually used for the shaft ends of grinders, metallurgical rolling mills, or large gearbox drive shafts with lubrication conditions. The oil seal outer edge made of interwoven fabric is particularly strong and has good static sealing; The sealing lip has a lasting radial pressure contact; The sealing lip is highly wear-resistant; Split seals can be provided for easy installation; TGA is usually used for back-to-back installation.

Medium	Mineral oils	Water	Lubricating greases	Pressure Mpa	Rotational speed m/s
NBR	-30℃ ~ +100℃	+5℃ ~ +100℃	-30℃ ~ +100℃	0.05	20
FKM	-10℃ ~ +180℃	+5℃ ~ +100℃	-10℃ ~ +180℃		25
HNBR	-20℃ ~ +140℃	+5℃ ~ +100℃	-20℃ ~ +140℃		25
Please consult for other media. Various parameters should not be used at maximum values simultaneously.

Surface machining accuracy
Surface roughness	Contact shaft surface	Cavity
Ra	≤0.6 μm	≤4.0μm
Rmax	≤2.5 μm	≤15.0 μm
The sealing pair contact surface should be vertically fed "unidirectional" grinding, to avoid leakage due to spiral lines generated by machining. The surface hardness must be close to 60HRC (minimum hardened thickness 0.5mm). As the circumferential speed increases, the peak-to-valley height Ra of the contact surface should be appropriately increased, and the surface should not be too smooth to form a proper oil film. The recommended value is: Ra min=0.1μm. When the cutting depth c=Rz/2 and the reference line Cref=0%, the surface support length ratio Mr>50% to a maximum of 90%. Shaft surface corrosion, scratches, and pores must be avoided.

Installation and Assembly

For TGA interwoven fabric seals, the cavity must be axial to facilitate axial assembly of the seal and ensure minimal seal tilt.

For reliable sealing function, the actual axial width of TGA is always greater than the nominal Size. TGA seals must be axially compressed to Size "L". Open cavities must have a cover plate and be tightened with screws. Appropriate compression deformation force is necessary for the use of TGA. The cover plate and tightening screws should be appropriately designed.