General purpose spring loaded double lip oil seals are available from Parker in materials of construction which include varying metal case OD configurations to suit the application. A garter spring provides constant, uniform load of the lip on the shaft for the life of the seal. The spring keeps the elastomer lip in contact with the shaft during higher shaft speeds and also helps offset normally occurring compression set and wear of the lip material. The secondary lip provides exclusion of light dust and fluid contaminants.

Standard Designs:
• TB Profile: Metal case with ParKote™ bore sealant or ground OD. Most common and economical
• TC Profile: Rubber covered metal case OD for improved OD sealing in bores with minor imperfections and in soft alloy housings
• TA Profile: Double metal case where inner case provides structural rigidity for large cross-sections. ParKote™ coating is standard

Typical operating ranges for standard designs:

Standard Lip Materials:
NBR: Temp -20F / +250F
FKM: Temp -40F / +400F

Shaft Surface Speed: Up to 2500 fpm (12.7 m/s) depending upon pressure

Maximum Pressure: 0 to 7 psi (0 to 0.48 bar) depending on shaft speed

Size Range: 1/4 to 10 inches (6.4 to 254 mm)

Maximum Shaft Dynamic Runout (TIR): 0.010” (0.254 mm)

Maximum (STBM) Misalignment: 0.010” (0.254 mm)

Typical Applications:
For general purpose fluid retention and light contaminant exclusion in applications such as electric motors, gearboxes, pumps, fans, rolling mills and custom equipment.