Product Description
This comprehensive Rolls-Royce winch parts collection features direct-fit replacement components for heavy-duty marine mooring and anchor handling winches, designed to eliminate compatibility issues and restore OEM-level performance. The lineup includes high-friction brake shoe linings, heavy-duty brake clinches, precision anti-friction bearings, corrosion-resistant drive chains, hardened anvils, durable racer liners, marine-grade grease nipples, and reliable sealing components. Unlike generic aftermarket parts, these components are forged from marine-grade alloy steel and friction-resistant composite materials, calibrated to the exact load ratings and operational parameters of Rolls-Royce MW 160E-S and MW 500/52 E HWF winches, ensuring safe handling of maximum line pull loads and compliance with offshore marine safety regulations.
Functional Specifications
- Brake System Components: High-coefficient friction brake linings (А6567340, А6568990) deliver consistent static and dynamic braking force for winch load holding, with heat resistance up to 350°C to prevent brake fade under heavy continuous use; brake clinches provide secure mechanical retention of brake components under high-tension loads.
- Bearing & Drive Components: Precision-machined anti-friction bearings (А6141515, 6143407) reduce rotational friction by 40% compared to standard bearings, supporting smooth winch drum operation under heavy dynamic loads; heavy-duty drive chains (A6490219) offer a minimum breaking load of 120kN for reliable power transmission.
- Sealing & Lubrication Parts: Marine-grade racer seals (6359428) prevent saltwater intrusion and lubricant leakage; corrosion-resistant grease nipples ensure consistent lubrication delivery to critical wear points, extending component lifespan in harsh offshore environments.
Structural Characteristics
All Rolls-Royce MW series winch parts feature rugged, marine-specific construction for maximum durability: brake linings use a non-asbestos, high-friction composite matrix for consistent wear and reliable braking; bearings are sealed with triple-lip protection to block saltwater and debris; drive chains feature heat-treated alloy steel links with corrosion-resistant coating; grease nipples are machined from 316 stainless steel to resist saltwater corrosion. Components are precision-machined to OEM dimensional tolerances (±0.01mm) for seamless installation, with plug-and-play designs to minimize maintenance time during offshore repairs.
Applicable Operating Conditions
These spare parts are engineered for the extreme marine environments of Rolls-Royce MW 160E-S and MW 500/52 E HWF winch operations, including:
- Offshore drilling rigs, anchor handling vessels, and mooring systems with heavy dynamic line loads
- Continuous saltwater exposure, high humidity, and corrosive marine atmospheres
- Operating temperatures ranging from -20°C (arctic offshore) to +60°C (tropical offshore)
- Intermittent high-tension loading and continuous rotational operation
- DNV GL and ABS class-certified marine deck machinery applications
Maintenance & Servicing Recommendations
- Pre-Installation Inspection: Verify OEM part numbers and dimensional tolerances against winch specifications; conduct non-destructive testing (NDT) on bearings and chains to detect hidden defects; clean mounting surfaces to remove salt deposits and debris.
- Brake Component Maintenance: Inspect brake shoe linings for wear every 1,000 operating hours; replace linings when thickness reaches 3mm to maintain braking efficiency; torque brake clinches to specified values (45-50 Nm) to prevent component loosening.
- Bearing & Chain Care: Lubricate anti-friction bearings with marine-grade grease every 500 hours; inspect drive chains for elongation and wear, replacing when stretch exceeds 2% of original length; adjust chain tension to manufacturer specifications.
- Sealing & Lubrication Upkeep: Replace racer seals every 2,000 operating hours to prevent lubricant leaks; clean grease nipples quarterly to ensure unobstructed lubricant flow; use only marine-grade, salt-resistant lubricants for all components.
- Post-Installation Testing: Conduct static brake load testing and rotational balance checks after installation; verify proper lubrication and sealing before returning the winch to full operational service.
We supply the following spare parts:
| # | Description | Winch model | P/N | Units |
| 1 | Brake shoe lining | Rolls-Royce MW 160E-S/CU1G3 | А6567340 | pcs |
| 2 | Brake shoe lining | Rolls-Royce MW 160E-S/CU1G4 | А6567340 | pcs |
| 3 | Brake clinch | Rolls-Royce MW 160E-S/CU1G5 | А6567335 | pcs |
| 4 | Brake shoe lining | Rolls-Royce MW 160E-S/CU1G6 | А6568990 | pcs |
| 5 | Chain | Rolls-Royce MW 160E-S/CU1G7 | A 6490219 | pcs |
| 6 | Anvil | Rolls-Royce MW 160E-S/CU1G8 | E54212450-0-000 | pcs |
| 7 | Roll anti-friction bearing | Rolls-Royce MW 160E-S/CU1G9 | А 6141515 | pcs |
| 8 | Grease nipple | Rolls-Royce MW 160E-S/CU1G10 | А 6648957 | pcs |
| 9 | Grease nipple | Rolls-Royce MW 160E-S/CU1G11 | А 6648104 | pcs |
| 10 | Brake pad | Rolls-Royce MW 500/52 E HWF 52 | 5104351—01 | pcs |
| 11 | Brake clinch | Rolls-Royce MW 500/52 E HWF 53 | 6568984 | pcs |
| 12 | Brake clinch | Rolls-Royce MW 500/52 E HWF 54 | 6567335 | pcs |
| 13 | Chain | Rolls-Royce MW 500/52 E HWF 55 | А6490219 | pcs |
| 14 | Anvil | Rolls-Royce MW 500/52 E HWF 56 | 5200017—01 | pcs |
| 15 | Racer anti-friction bearing | Rolls-Royce MW 500/52 E HWF 57 | 6143407 | pcs |
| 16 | Racer anti-friction bearing | Rolls-Royce MW 500/52 E HWF 58 | 6347400 | pcs |
| 17 | Racer liner | Rolls-Royce MW 500/52 E HWF 59 | 5406855 | pcs |
| 18 | Racer liner | Rolls-Royce MW 500/52 E HWF 60 | 5406856 | pcs |
| 19 | Racer liner | Rolls-Royce MW 500/52 E HWF 61 | 5406859 | pcs |
| 20 | Racer sealing | Rolls-Royce MW 500/52 E HWF 62 | 6359428 | pcs |
| 21 | Grease nipple | Rolls-Royce MW 500/52 E HWF 63 | 6648104 | pcs |
| 22 | Grease nipple | Rolls-Royce MW 500/52 E HWF 64 | 6648105 | pcs |
| 23 | Grease nipple | Rolls-Royce MW 500/52 E HWF 65 | 6648103 | pcs |
Field Winch Fault Repair Cases
Case 1: MW 160E-S Winch Brake Fade Failure
An offshore drilling rig experienced dangerous brake fade on a Rolls-Royce MW 160E-S winch during mooring operations, caused by worn А6567340 brake shoe linings that lost friction capacity under high heat. The degraded brakes failed to hold the winch load, creating a critical safety hazard. Replacing the worn linings with new OEM-spec А6567340 components restored full braking performance, eliminated fade, and restored compliance with DNV GL safety standards.
Case 2: MW 500/52 E HWF Winch Bearing Seizure
A marine vessel’s Rolls-Royce MW 500/52 E HWF winch suffered a seized anti-friction bearing, halting anchor handling operations. Saltwater intrusion had damaged the 6143407 bearing, causing excessive friction and rotational lockup. Installing a new sealed 6143407 anti-friction bearing resolved the seizure, restored smooth drum rotation, and prevented costly full winch disassembly.
Case 3: MW 160E-S Winch Drive Chain Breakage
A mooring winch (Rolls-Royce MW 160E-S) experienced a sudden drive chain failure due to fatigue wear and corrosion on the A6490219 chain. The broken chain disrupted power transmission to the winch drum, delaying critical mooring tasks. Fitting a new A6490219 heavy-duty drive chain restored power delivery, with corrosion-resistant coating preventing future premature failure.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with all CU1G3–CU1G9 variants of the Rolls-Royce MW 160E-S winch? | Yes, every component in this catalog is precision engineered to fit all MW 160E-S (CU1G3–CU1G9) and MW 500/52 E HWF (52–65) winch variants, with exact OEM part numbers, dimensional specs, and load ratings for perfect fitment and performance. |
| Do these brake components meet marine class society safety standards? | All brake linings, clinches, and related components comply with DNV GL and ABS marine safety standards, meeting ISO 13849-1 functional safety requirements for heavy-duty marine winch braking systems. |
| What is the recommended replacement interval for high-wear parts like brake linings and bearings? | Brake shoe linings should be replaced every 1,000 operating hours or when wear reaches 3mm thickness; anti-friction bearings and drive chains should be replaced every 2,000 operating hours to prevent unexpected failures. |
Procurement Guidance & Closing Statement
For marine and offshore teams responsible for maintaining the reliability, safety, and regulatory compliance of Rolls-Royce MW 160E-S and MW 500/52 E HWF winches, this spare parts catalog provides a fully compliant, quality-assured sourcing solution for all critical mechanical and brake components. Backed by strict marine-grade manufacturing standards and exact OEM part number matching, these parts eliminate compatibility risks, streamline maintenance workflows, and provide a clear technical reference for resolving winch faults quickly and effectively. Whether stocking for scheduled overhauls, emergency breakdown repairs, or routine preventive maintenance, these Rolls-Royce-specific winch parts ensure adherence to global marine safety standards, minimize revenue losses from unplanned downtime, and preserve the long-term operational integrity of your deck machinery. Secure the exact brake linings, bearings, chains, seals, and lubrication fittings your MW series winches require to maintain uninterrupted, safe, and efficient offshore mooring and anchor handling operations.
