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GreatCase Seals
ParameterSpecification Details
PressureUp to 3.5Mpa
SpeedUp to 30m/s
Temperature-60°C ~ +200°C
MediaFully Compatible (including high-viscosity and particle-laden fluids)

  1. Primary element
  2. Secondary element
  3. Wiper seal
  4. Outer case
  5. Gasket (Fluorocarbon)
  6. Washer
  7. Inner case
  8. Helical lines
Seal Type Seal Type Application Details
Series L1
L1 Seal
Series L2
L2 Seal
Series L1 and L2 are economical GreatLip seals employed in a wide range of applications. They are used in lubricated and non-lubricated environments. They can be used at shaft speeds to 5000 ft./min. in lubricated media and pressures to 100 PSID. Maximum PV 75,000 lubricated, 37,500 non-lubricated. Typical applications are: gearboxes and environmental seals.
Series T1
T1 Seal
Series T2
T2 Seal
Series T1 and T2 incorporate a threaded sealing lip which pumps the media away from the seal. These designs should only be used in lubricated media. These designs offer long life and positive sealing at shaft speeds to 6000 ft./min. They should not be used for pressures greater than 5 PSID. It can only be used in single rotary shaft, rotate by clockwise or anticlockwise, please confirm the rotary shaft direction before place order.
Series F1
F1 Seal
Series F2
F2 Seal
Series F1 and F2 offer low torque and long life. They can be used at shaft speeds to 6000 ft./min., but are not recommended for pressures greater than 25 PSID. Due to their light lip loading, these designs should not be used where a leak-tight seal is required. They are an excellent environmental seal. Maximum PV 75,000 lubricated, 37,500 non-lubricated. Typical applications are: dust/dirt excluders, spindles and conveyor seals.
Series S1
S1 Seal
Series S2
S2 Seal
Series S1 and S2 incorporate spring loading which improves sealing where shaft runout or bore/shaft misalignment exist. These designs offer positive sealing during long term storage. They can be used at shaft speeds to 2000 ft./min. and pressures to 100 PSID. Maximum PV 75,000 lubricated, 37,500 non-lubricated. Typical applications are: mixers, gear boxes and augers.
Series H2
H2 Seal
Series H3
H3 Seal
Series H2 and H3 are designed for pressures up to 500 PSID lubricating media, speeds up to 3500 ft./min. Maximum PV 300,000 lubricated, 50,500 non-lubricated. Typical applications are: hydraulic motors, pumps, hydrostatic transmissions and other high pressure hydraulic equipment.
Series W2
W2 Seal
Series W3
W3 Seal
Series W2 and W3 incorporate a threaded primary sealing lip with a standard secondary sealing lip. These series are designed for sealing lubricating media at high speeds 4,500ft./min and pressures up to 250 PSID. Maximum PV 200,000 lubricated.It only used in single rotary shaft , rotate by clockwise or anti clockwise , please confirm the rotary shaft direction before place order. Typical applications are: air compressors, refrigeration compressors and vacuum pumps.

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