Wiper and scraper profiles for medium speed rotary and slow reciprocating applications are available from Parker in metal case as well as rubber covered metal OD designs. The single, springless elastomer lip provides low fluid retention and excludes heavy dust and other contaminants.
Profile features include:
• Shallow cavity design (W)
• Easy press fit installation (W WPR)
• Rubber covered metal case for improved OD sealing (WPC WPR)
Standard Designs:
W Profile: Single springless scraper elastomer lip. Metal case with ParKote™ bore sealant or ground OD.
WPC Profile: Single wiper profile elastomer lip retains grease in slow rotary and reciprocating applications. Rubber covered metal OD for improved OD sealing.
WPR Profile: Single springless scraper profile elastomer lip. Rubber covered metal OD for improved OD sealing.
Standard Materials:
NBR: Temp -20F / +250F
FKM: Temp -40F / +400F
Shaft Surface Speed:
Rotary: Up to 2000 fpm (10.2 m/s)
Reciprocating: Up to 300 fpm (1.5 m/s)
Size Range:
0.375 to 10.000 inches (10.0 to 254 mm)
Maximum Shaft Dynamic Runout (TIR): 0.010” (0.254mm)
Maximum (STBM) Misalignment: 0.008” (0.20 mm)
Maximum Pressure: 0 psi
Typical Applications:
Low retention, dust and contamination exclusion for moderate rotary and slow reciprocating rod applications.
