ID
897580
$ 91.39
1-2 weeks delivery time
Shaft Diameter:
- 25
- 30
- 35
- 40
- 45
- 50
- 1 1/2"
- 1 1/4"
- 1 3/4
- 1''
- 2"
Stern Tube Diameter:
- 42
- 43
- 49
- 54
- 60
- 64
- 65
- 70
The STB water-lubricated shaft seal is a stern tube sealing system designed for marine propulsion applications. Suitable for shaft diameters from 25 mm to 50 mm and 1" to 2", with stern tube diameters from 42 mm to 70 mm. Features a flexible bellows construction with clamp mounting and integrated water supply for lubrication and cooling.
- Description
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STB Water-Lubricated Shaft Seal – Metric & Imperial Sizes
The STB propeller shaft seal is designed for water-lubricated marine propulsion systems, providing reliable sealing of the stern tube while allowing continuous cooling and lubrication of the shaft.
The seal features a flexible bellows construction combined with stainless steel clamps, ensuring a secure and leak-free installation. The integrated water supply system improves lubrication, reduces friction, and extends the service life of both the seal and the shaft.
Key Features
- Water-lubricated shaft seal system
- Flexible bellows design
- Integrated water supply for cooling and lubrication
- Clamp-mounted installation
- Reduced friction and wear
- Suitable for marine propulsion systems
Technical Specifications
Shaft Stern Tube (mm) Length (mm) SKU 25 mm 42 105 STB25E 30 mm 43 111 STB30E 35 mm 54 119 STB35E 40 mm 60 119 STB40E 45 mm 64 118 STB45E 50 mm 70 120 STB50E 1" 43 105 STB2540E 1 1/4" 49 111 STB3571E 1 1/2" 60 119 STB3510E 1 3/4" 65 117 STB4445E 2" 70 120 STB5080E
This shaft seal is designed for use in systems where water lubrication is required. The continuous flow of water reduces heat buildup and ensures smooth shaft operation, making it suitable for both recreational and commercial vessels.
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