150–450mm Marine Roller Fairlead with Verified SWL & Safety Factor for Ship Mooring
150–450mm Marine Roller Fairlead with Verified SWL & Safety Factor for Ship Mooring
Product Overview
This marine roller fairlead is designed as a load-bearing guiding device for mooring systems.
Unlike conventional fairleads, this unit is engineered with verified Safe Working Load (SWL) and safety factor, ensuring reliable performance under real mooring forces.
High-quality cast steel rollers, precision machining, and optimized lubrication system ensure smooth rotation and reduced rope wear.
Suitable for both steel wire rope and synthetic ropes in demanding marine environments.
Quick Specifications
- Roller Diameter: 150–450 mm → Defines rope handling capacity
- SWL: 254–1766 kN → Defines allowable working load
- Safety Factor: 1.35–2.09 → Indicates structural safety margin
- Roller Type: 2 / 3 Rollers → Determines guiding capability
- Material: Cast steel roller + steel base → Strength and durability
- Shaft: High-strength steel → Load transmission
- Bearing: Copper bush → Wear resistance
- Lubrication: Oil channel → Smooth rotation
- Surface: Sa2.5 + primer → Corrosion protection
- Standard: Marine GB10105-88
Main Technical Parameters
| Roller Dia. | Suitable Wire Rope Diameters | Dimensions | Weight | |||||||||
| PP Rope | Nylon |
Steel Wire Rope (155kgf / mm2) |
||||||||||
| 6 X 24 | 6 X 37 | D1 | d0 | d7 | H | s | t | K | kg | |||
| 150 | 32 | 45 | 17 | 15. 0 | 240 | 90 | 79 | 154 | 5 | 12 | 9 | 24.8 |
| 200 | 40 | 55 | 22.5 | 19.5 | 310 | 115 | 99 | 186 | 5 | 14 | 10 | 49.3 |
| 250 | 45 | 65 | 24 | 24 | 380 | 135 | 119 | 230 | 6 | 14 | 10 | 92 |
| 300 | 50 | 70 | 30 | 28. 0 | 440 | 155 | 129 | 255 | 7 | 16 | 12 | 127 |
| 350 | 55 | 75 | 37.5 | 34.5 | 500 | 175 | 149 | 271 | 7 | 18 | 13 | 168 |
| 400 | 65 | 85 | 41.0 | 39. 0 | 560 | 185 | 159 | 307 | 7 | 20 | 14 | 252.5 |
| 450 | 80 | - | 44.5 | 43 | 630 | 210 | 179 | 316 | 7 | 20 | 14 | 310 |
| Roller Dia. | A | L | Suitable Wire Rope Dia. | |||||
| PP Rope | Malila Rope | Steel Wire Rope ( G B 11 02 ) Tensile Strength ( 155 kg f/mm2 ) |
SWL KN(tf) |
Safety Factor | ||||
| 6 X 24 | 6 X 37 | |||||||
| 150 | 420 | 740 | 32 | 45 | 17.0 | 15 | 254(26) | 2.00 |
| 200 | 530 | 930 | 40.00 | 55 | 22.5 | 19.5 | 412(42) | 1.92 |
| 250 | 640 | 1100 | 45 | 65 | 24 | 24 | 550(56) | 2.09 |
| 300 | 750 | 1270 | 50 | 70 | 30 | 28 | 824(84) | 1.53 |
| 350 | 860 | 1440 | 55 | 75 | 37.5 | 34.5 | 1196(122) | 1.48 |
| 400 | 970 | 1610 | 65 | 80 | 41.0 | 39.0 | 1452(148) | 1.35 |
| 450 | 1080 | 1800 | 80 | - | 44.5 | 43 | 1766(180) | 1.58 |
Selection Guide
Step 1 – Select Roller Diameter → Based on rope size
Step 2 – Confirm Rope Type → Steel wire or synthetic rope
Step 3 – Confirm SWL → Must exceed maximum mooring load
Step 4 – Check Safety Factor → Higher for dynamic conditions
Step 5 – Select Roller Quantity → Based on lead angle
Step 6 – Confirm Lubrication → For long-term reliability
Structure
Cast steel rollers | Steel base | Shaft | Copper bush | Lubrication channels
Custom Attributes
- SWL: 254–1766 kN → Load capacity
- Safety Factor: 1.35–2.09 → Structural safety
- Material: Cast steel → Strength
- Shaft: High strength → Load transfer
- Bearing: Copper bush → Durability
- Lubrication: Oil channel → Smooth rotation
- Certification: CCS, NK, BV, ABS, DNV, LR, KR, IRS, RS, RINA, CRS, Makers Test Certificate
Inquiry Guide
Provide rope diameter, SWL requirement, rope type, roller number, and certification requirement.
How It Works
The rope passes over rotating rollers which reduce friction and distribute load. SWL ensures safe operation under defined loads.
Applications
Ship mooring system | Rope guiding under load | Steel wire rope handling
Certifications & Advantages
Certification: CCS, NK, BV, ABS, DNV, LR, KR, IRS, RS, RINA, CRS; verified SWL, reduced rope wear, smooth rotation, high structural reliability.
Drawing & Photos
GA drawing | Product photos
Ordering
MOQ: 1 | Delivery: 30–60 days
FAQ
Q1: How to select SWL?
A: SWL must be higher than maximum mooring load.
Q2: Why is safety factor important?
A: It ensures reliability under dynamic loads.
Q3: Why use roller fairlead?
A: It reduces rope wear and improves service life.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.