Stern Bearing Seal Grease Gun Tip Caps are specialized fittings designed for marine propulsion systems. They ensure precise grease application to stern bearing seals, preventing water ingress and corrosion. These caps enhance lubrication efficiency and extend the lifespan of propulsion components.

Size: Typically 1/4" to 1" diameter, depending on application.

Grade: NLGI 2 or equivalent for marine applications.

Viscosity: Medium to high viscosity (ISO VG 150-220).

Buoyancy: Neutral to slightly positive buoyancy in seawater.

Material: Nitrile rubber (NBR) or polyurethane for seals; stainless steel or brass for caps.

Operating Temperature: -20°C to 120°C (-4°F to 248°F).

Pressure Rating: Up to 500 psi (34.5 bar) for high-pressure systems.

Compatibility: Resistant to saltwater, oils, and marine fuels.

Seal Type: Lip seal or O-ring design for stern tube applications.

Installation: Threaded or push-fit connections for grease gun compatibility.