STK-Seals (STR) (Piston packings / Rotation&Oscillation applications)

Standard Material: PTFE(PT151)

Profiles (Left section)

STR-2
en_STK-STR

Service range

Standard Material
Material codes Pressure MPa {kgf/㎠} Max. speed
(m/s)
Temperature range
(℃)
PTFE(PT151) STR 28 {280} 0.3 ー30~100

Characteristics

STK-Seals are combinined seals of S-FLON (PTFE) seals & square back-up rings to achieve low friction resistance and to eliminate stick-slip even at low pressure/speed conditions.
Seals with the seal energizing pressure notches are also available for the ultimate sealing performance and reliability.

Remarks

  • ●Consider adopting split grooves if one-piece groove is technically adverse.
  • ●Note that the STK-Seals are not applicable to the part requiring strict sealing performance. Installation of the drain circuit is advisable to prevent leakage.
  • ●STK-Seals with the notches for seal energizing pressure available for the ultimate sealing performance and reliability.
  • ※JIS standard sequence of surface roughness symbols refer to HERE.

Dimension table

Packings & Groove dimensions(Unit:mm) Part No.
D d H G E(Reference) L Standard material(PT 151)
50 40 4.8 5.0 4 3 STR- 50
60 50 4.8 5.0 4 3 STR- 60
70 60 4.8 5.0 4 3 STR- 70
80 70 4.8 5.0 4 3 STR- 80
90 80 4.8 5.0 4 3 STR- 90
100 90 4.8 5.0 4 3 STR-100
110 100 4.8 5.0 4 3 STR-110
120 108 5.3 5.5 5 4 STR-120
130 118 5.3 5.5 5 4 STR-130
140 128 5.3 5.5 5 4 STR-140
150 138 5.3 5.5 5 4 STR-150
160 148 5.3 5.5 5 4 STR-160
165 153 5.3 5.5 5 4 STR-165
  • ★Orders and inquiries are acceptable by part numbers. Part numbers marked ※ have been changed each part numbers. Please check HERE for the previous part number.
  • ★Part numbers in blue letters are the products in stock.
  • ★Packings with the part numbers in light Italic require the confirmation of their availability prior to ordering. These items are subject to the abolishment without notice. Reclamation of an abolished product requires producing the new tooling at your expense.
  • ★ST-Seals are made-to-order products. ST-Seals for inner slide rods and other shapes are available upon request.
  • ★Packings are adequately packaged for the optimum storage. Refer to Cautions for the handling and
  • ★Performance and material tests on packing and seals are also available. Please contact us for more information.