TOR Marine Stuffy Box EVO propeller shaft seal 50 mm

The TOR Marine Stuffy Box Ø50 mm EVO is a water-lubricated propeller shaft seal for inboard engines with a water-lubricated shaft system. This EVO version features an integrated nipple for forced water lubrication and automatic venting, which allows the seal to self-maintain and prevents dry running. It is a durable, flexible alternative to traditional grease-lubricated stuffing boxes and standard Volvo Penta seals, suitable for a 50 mm propeller shaft and a 70 mm stern tube.

Key features and benefits:

Prevents water leakage and dry running: Automatic venting via integrated water nipple.
Water-lubricated system: Ensures constant lubrication and cooling, even at low speeds or when reversing.
Low-maintenance: Only requires annual lubrication with shaft grease.
Flexible NBR bellows: Absorbs vibrations and minor radial play.
Designed for Ø50 mm propeller shaft: Fits a 70 mm stern tube.
Durable design: Preventive replacement recommended every 4–5 years or after 500 operating hours.

Specifications:

Shaft diameter (A): 50.00 mm
Stern tube diameter (B): 70.00 mm
Lubrication: Water-lubricated
Nipple/hose connection: 8 mm for forced water lubrication
Material: NBR
Brand: TOR Marine