STS-B Water Lubricated Stern Tube Seal

Basic Information
Place of Origin: China
Certification: ISO
Minimum Order Quantity: 1
Packaging Details: General Export Packing
Payment Terms: T/T, Western Union, PayPal

Product Description
STS-B Water Lubricated Stern Tube Seal:
STS-B Water Lubricated Stern Tube Seal Introduction

It is mechanical seal device that controls specific pressure of fiction on contact surface by corrugated tube expansion, it is mainly used in boats, especially high-speed boats, and it confirms to GJB2479-95 General code for stern tube seal of boats.

Product Parameters
Product Characteristics

Simple structure, small amount of parts.

Heat-resistant and wear-resistant materials for stationary seal ring.

No friction to the propeller shaft and sleeve.

Long service time: due to flexibility of the corrugated tube, specific pressure changes slightly when axial vibration rises.

Be able to operate in water with high silt content.

Technical Parameter

Propeller shaft linear velocity <6m/s.

Propeller shaft axial travel <8mm, axial play 4mm.

Propeller shaft radial jump: ±3mm.

Low water leakage: below 40L/day, No water drop can be seen in navigation pause, or only a little.

STS-B Water Lubricated Stern Tube Seal 0

STS-B Water Lubricated Stern Tube Seal 1STS-B Water Lubricated Stern Tube Seal 2STS-B Water Lubricated Stern Tube Seal 3


Propeller Shaft diameter(mm)


Interface flange(mm) Total Length <L)
D DI D2 N-d B L
STS-B-20 20 116 86 50 4-410 10 204
STS-B-25 25
STS-B-28 28
STS-B-30 30 130 110 68
STS-B-35 35
STS-B-38 38
STS-B-40 40
STS-B-45 45
STS-B-50 50 150 130 94 6210 12 212
STS-B-55 55
STS-B-60 60
STS-B-65 65
STS-B-70 70 180 154 114 14 225
STS-B-75 75
STS-B-80 80
STS-B-85 85
STS-B-90 90 205 176 130 231
STS-B-95 95



Packaging & Shipping

Bearings For Turbine, Pump

Our Advantages

1. We have over 10 years' experience.
2. OEM or Non-Standard Bearings: Any requirement for Non-standard bearings is easily fulfilled by us due to our vast knowledge and links in the industry.
3. After Sales Service and Technical Assistance: Our company provides after-sales service and technical assistance as per the customer's requirements and needs.
4. Quick Delivery: Our company provides just-in-time delivery with our streamlined supply chain.
5.We attend promptly to any customer questions. We believe that if our customers are satisfied then it proves our worth. Our customers are always given quick support.

Contact Details

Phone Number : 8618321958125

WhatsApp : +8618321958125