Overview
The Parker Clipper 10121-LUP oil seal is a general purpose, spring-loaded single lip rotary shaft seal designed for reliable fluid retention in industrial machinery and power transmission systems. Manufactured by Parker Hannifin’s Engineered Polymer Systems (EPS) division under the JM Clipper brand, this seal combines proven design with modern materials for extended service life and reduced maintenance costs.
Key Features
- Spring-loaded single lip design for consistent pressure and reliable sealing
- Nonmetallic aramid fiber reinforced composite outer casing for damage-free installation without special tools
- No metal casing eliminates risk of permanent damage during installation—seal taps easily into place with mallet
- Suitable for general purpose applications in oiled environments with temperature ranges from -40°F to 400°F (FKM)
- Maximum operating pressure 7 psi; rated for surface speeds to 3200 ft/s
Technical Specifications
- Shaft Diameter: 2.500″
- Bore Diameter: 3.500″
- Width / Seal Length: 0.500″
- Profile Type: LUP (general purpose)
- Casing Material: Composite (aramid fiber reinforced)
- Lip Design: Single lip, spring-loaded
- Maximum Pressure: 7 psi
- Maximum Surface Speed: 3200 ft/s
- Temperature Range: -40°F to +400°F
- Seal Material: FKM (standard offering)
Typical Applications
The Parker Clipper 10121-LUP is widely used in:
- Gearbox and transmission fluid retention
- Pump shafts in industrial hydraulic and lubricated systems
- Motor and compressor shaft sealing
- Agricultural and construction equipment
- Food processing and light-duty industrial machinery where composite casings simplify maintenance
Compatibility & Replacements
Compatible With
- Parker Hannifin pump and motor housings
- Industrial gearboxes and reducers with 2.500″ shaft diameter
- Standard oil-filled bearing housings rated for 7 psi maximum
- FKM/Viton compatible fluid systems operating -40°F to +400°F
Replaces / Drop-In Replacement For
- Parker Clipper 10121 H1L5 (exact same part, different nomenclature)
- JM Clipper LUP series seals with identical 2.500″ x 3.500″ x 0.500″ dimensions
- Verify compatibility with your system integrator or equipment OEM before ordering
Works With
- Parker Hannifin EPS seal maintenance and replacement programs
- Standard mechanical seal installation tools and practices
- ISO VG 46–68 industrial oils and EP gear lubricants
- Any rotary shaft application requiring single lip, general purpose sealing
