Features
LUPW/LPDQ - Spring-loaded single lip. Features nonmetallic composite OD for damage-free installation.
LDSW - Specialized double lip features nonmetallic composite OD for damage-free installation. Primary lip features molded-in springs for lubrication retention. Springless secondary lip for excluding light dust. Floating lip accommodates high misalignment conditions.
Applications
Most commonly used for oil or grease retention where high shaft misalignment is present. LUPW and LPDW accommodate misalignment by use of extended lip profile and may require a wider than normal bore depth to avoid interference of the lip.
Type LDSW accommodates misalignment using a geometry that allows the lip to float with the shaft.
Operating Temperature Range
NBR: -20 to 250 °F (-29 to 121 °C)
FKM: -40 to 400 °F (-40 to 204 °C)
Common Materials
NBR – H1L5
HNBR – H1L30
XNBR – H1L20
FKM – H5L16
Shaft Surface Speed
LUPW/LPDW - Up to 1000 fpm (5.1 m/s)
LDSW - Up to 2500 fpm (12.7 m/s)
Shaft Size Range
LUPW/LPDW - 1 – 50″ (41 – 1270 mm)
LDSW - 3/4 – 25″ (19 – 635 mm)
Maximum Shaft Dynamic Runout (TIR)
0.020 – 0.125″ (0.508 – 3.175″ mm)
Maximum (S TBM) Misalignment
0.020 – 0.125″ (0.508 – 3.175″ mm)
Maximum Pressure psi (bar)
LUPW / LPDW – 0 – 7 (0 – 0.48) Depending on shaft speed.
LDSW – 0 – 3 (0 – 0.21 m/s) Depending on shaft speed.