STB Stuffing Box Seal Kit

ID 897592

$ 83.24

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:

The STB stuffing box seal kit is a traditional packing gland solution for marine shaft sealing systems. Designed for shaft diameters from 25 mm to 50 mm and 1" to 2", with stern tube sizes from 42 mm to 70 mm. Features flexible bellows with clamp mounting and controlled water lubrication via bushing, supplied as a complete installation kit.

Description
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STB Stuffing Box Seal Kit – Packing Gland, Metric & Imperial Sizes

The STB stuffing box seal kit is a classic packing gland solution designed for sealing marine propeller shafts in water-lubricated systems. It provides reliable sealing while allowing controlled lubrication to minimize friction and wear.

The system is based on a flexible bellows construction with clamp mounting, ensuring a secure and tight connection to the stern tube. Water lubrication is regulated through the internal bushing, offering a simple and effective sealing method without the need for external power.

Key Features

Traditional stuffing box / packing gland design
Flexible bellows with clamp mounting
Controlled water lubrication via bushing
Non-powered, simple and reliable system
Includes safety ring and installation components
Suitable for marine propulsion shaft systems

Technical Specifications

Shaft	Stern Tube (mm)	Length (mm)	SKU
25 mm	42	105	STB25
30 mm	48	111	STB30
35 mm	54	119	STB35
40 mm	60	119	STB40
45 mm	64	118	STB45
50 mm	70	120	STB50
1"	43	105	STB2540
1 1/4"	49	111	STB3175
1 1/2"	60	119	STB3810
1 3/4"	65	117	STB4445
2"	70	120	STB5080

This stuffing box seal kit is ideal for applications where a simple, serviceable, and proven shaft sealing solution is required. It allows easy maintenance and adjustment while ensuring long-term reliability in marine environments.