Typ T-W

The T-W version is made entirely of PTFE material with fillers. The outer perimeter of the seal contains an O-ring made of FKM material for static sealing and to prevent possible rotation in the groove. The characteristics of the PTFE material combined with the FKM O-ring provide excellent chemical and thermal resistance. It is also characterized by a long service life.
Normally supplied with a stainless steel tension spring.
The seating spaces are identical to standard bearings according to DIN 3760. Higher shaft hardness, min. 50HRC and lower tolerances of shaft eccentricities are required for the application.
Its advantages are particularly useful for slow, axial or helical movements.
Table No. shows the recommended values of the seal cross-section. The values are not fixed and can be adjusted if necessary.

The parameters given are for standard designs only. PTFE shaft seals are characterized by a high degree of individualization and customization to specific conditions.

INSTALLATION

See download file PTFE shaft seal assembly.