STS-B Water Lubricated Stern Tube Seal
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 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.
| Code |
Propeller Shaft diameter(mm) d |
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 | ||||||
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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.