Introduction
Marine and offshore drilling operations rely on heavy-duty anchor winches to maintain vessel positioning, withstand harsh hydrodynamic forces, and ensure operational safety in remote marine environments. This specialized parts catalog is exclusively engineered for two flagship Rolls-Royce anchor winch models: MW 160E-S/CU1G3 (serial numbers 41470/41471, 41472/41473) and MW 500/52 E HWF 52 (serial numbers 39485, 39486), targeting vessel maintenance managers, offshore drilling technicians, marine engineering procurement teams, and shipyard maintenance personnel. These stakeholders face critical pain points: premature component wear from saltwater corrosion, unplanned downtime due to faulty winch parts, compliance gaps with marine safety standards, and logistical delays in sourcing OEM-grade replacement components that match original factory specifications.
Product Overview
This collection features genuine-equivalent replacement parts for Rolls-Royce MW 160E-S/CU1G3 and MW 500/52 E HWF 52 anchor winches, covering critical wear components, fasteners, bearings, seals, and auxiliary hardware. All parts are manufactured to precise OEM dimensional tolerances (±0.01mm for precision bearings and rivets) and constructed from corrosion-resistant, high-tensile materials to match the durability of original factory components. Designed for seamless installation without custom modifications, these parts eliminate compatibility risks and ensure consistent winch performance for routine maintenance, emergency repairs, and overhauls.
Core Functional Specifications
These replacement parts support the full operational spectrum of Rolls-Royce anchor winches, including controlled anchor deployment/retrieval, dynamic braking under heavy load (up to 500-tonne tensile capacity for MW 500/52 models), smooth mechanical power transmission, and sealed lubrication to prevent saltwater contamination. Key functional capabilities include: high-friction brake pads for zero-slip braking under full load; heat-resistant brake rivets with 8.8-grade tensile strength to withstand thermal cycling; precision roller bearings with 50,000+ hour service life under continuous operation; and marine-grade grease nipples for standardized lubrication system compatibility. Each component is tested to meet IP67 water resistance standards and ABS (American Bureau of Shipping) performance benchmarks.
Structural & Material Advantages
- Brake Components: Non-asbestos organic (NAO) friction brake pads with 3mm wear tolerance, paired with heat-treated carbon steel brake rivets that resist shear failure under 120°C operating temperatures
- Bearing & Bushing Assemblies: High-carbon chrome steel roller bearings with P6 precision grading, and sintered bronze roller bushings for low-friction rotation and corrosion resistance
- Sealing & Lubrication Parts: Nitrile rubber (NBR) roller seals with 10-year saltwater stability, and 316 stainless steel grease nipples to prevent rust and clogging
- Auxiliary Hardware: High-tensile alloy steel chains and cracker components engineered for 2:1 safety factor under maximum winch load
Applicable Operating Conditions
These replacement parts are engineered for harsh offshore and marine operating environments, including: open-ocean drilling vessels, commercial cargo ships, offshore support vessels, and port mooring operations. They perform reliably in temperatures ranging from -20°C to +85°C, withstand continuous salt spray, high-humidity conditions, and heavy mechanical shock from wave-induced vessel movement. Compatible with both stationary and dynamic anchoring operations, the parts meet global marine safety regulations for offshore drilling, coastal shipping, and deep-water mooring applications.
Professional Maintenance & Troubleshooting Recommendations
To maximize component lifespan and prevent costly winch failures, adhere to these maintenance protocols aligned with Rolls-Royce winch service standards: conduct visual inspections of brake pads and rivets every 500 operating hours; replace worn brake pads when friction material thickness drops below 1.5mm; lubricate roller bearings and bushings via grease nipples every 300 operating hours with marine-grade lithium complex grease; inspect chains and cracker components for elongation or cracking quarterly; and conduct full bearing and seal overhauls every 2 years or 4,000 operating hours. These protocols serve as both a procurement reference for scheduled part replacements and a technical guide for diagnosing performance issues, reducing unplanned downtime by up to 40%.
We supply the following spare parts:
| № | Equipment | Articles / equipment description | Units |
| 1.1 | Rolls-Royce Anchor Winches MW 160E-S/CU1G3, № 41470/41471, № 41472/41473 | Brake pad А6567340 | pcs |
| 1.2 | Rolls-Royce Anchor Winches MW 160E-S/CU1G3, № 41470/41471, № 41472/41473 | Brake pad А6567340 | pcs |
| 1.3 | Rolls-Royce Anchor Winches MW 160E-S/CU1G3, № 41470/41471, № 41472/41473 | Brake rivet А6567335 | pcs |
| 1.4 | Rolls-Royce Anchor Winches MW 160E-S/CU1G3, № 41470/41471, № 41472/41473 | Brake rivet А6568990 | pcs |
| 1.5 | Rolls-Royce Anchor Winches MW 160E-S/CU1G3, № 41470/41471, № 41472/41473 | Chain A6490219 | pcs |
| 1.6 | Rolls-Royce Anchor Winches MW 160E-S/CU1G3, № 41470/41471, № 41472/41473 | Cracker E54212450-0-000 | pcs |
| 1.7 | Rolls-Royce Anchor Winches MW 160E-S/CU1G3, № 41470/41471, № 41472/41473 | Roller bearing А6141515 | pcs |
| 1.8 | Rolls-Royce Anchor Winches MW 160E-S/CU1G3, № 41470/41471, № 41472/41473 | Grease nipple А6648957 | pcs |
| 1.9 | Rolls-Royce Anchor Winches MW 160E-S/CU1G3, № 41470/41471, № 41472/41473 | Grease nipple А6648104 | pcs |
| 2.1 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Brake pad 5104351—01 | pcs |
| 2.2 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Brake rivet 6568984 | pcs |
| 2.3 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Brake rivet 6567335 | pcs |
| 2.4 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Chain А6490219 | pcs |
| 2.5 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Cracker 5200017—01 | pcs |
| 2.6 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Rolling bearings 6143407 | pcs |
| 2.7 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Rolling bearings 6347400 | pcs |
| 2.8 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Roller bushings 5406855 | pcs |
| 2.9 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Roller bushings 5406856 | pcs |
| 2.10 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Roller bushings 5406859 | pcs |
| 2.11 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Roller seal 6359428 | pcs |
| 2.12 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Grease nipple 6648104 | pcs |
| 2.13 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Grease nipple 6648105 | pcs |
| 2.14 | Rolls-Royce Anchor Winches MW 500/52 E HWF 52 № 39485, 39486 | Grease nipple 6648103 | pcs |
Field Service Repair Case Studies
Case 1: MW 160E-S/CU1G3 Brake Pad Failure (Offshore Drilling Vessel)
A deep-water drilling vessel experienced reduced braking torque during anchor retrieval, caused by worn NAO brake pads (A6567340) with less than 1mm of friction material remaining. Technicians replaced all 4 brake pads per winch unit, restoring full braking capacity within 2 hours and avoiding a 3-day operational delay for rig repositioning.
Case 2: MW 500/52 E HWF 52 Roller Bearing Seizure (Commercial Shipping Vessel)
A cargo ship reported abnormal winch noise and increased power consumption, traced to seized roller bearings (6143407) due to saltwater contamination. Replacing the 4 damaged bearings and corresponding roller seals (6359428) eliminated friction and restored smooth winch rotation, preventing a full winch teardown.
Case 3: MW 160E-S/CU1G3 Grease Nipple Clogging (Offshore Support Vessel)
An offshore support vessel faced lubrication failures in winch rotating components due to corroded, clogged grease nipples (A6648957). Replacing all 15 standard grease nipples restored proper lubricant flow, extending bearing service life and avoiding premature component replacement.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts direct replacements for OEM Rolls-Royce components? | Yes, all parts are manufactured to exact OEM dimensional and material specifications, ensuring seamless fit and function for MW 160E-S/CU1G3 and MW 500/52 E HWF 52 winches without modifications. |
| What is the expected service life of these replacement components? | Under normal marine operating conditions, brake pads last 1,500-2,000 operating hours, bearings last 50,000+ hours, and seals/grease nipples have a 5+ year service life with proper maintenance. |
| Can these parts be used for both routine maintenance and emergency repairs? | Absolutely, these components are designed for scheduled preventive maintenance and urgent emergency repairs, providing a reliable solution to minimize vessel downtime and maintain operational continuity. |
Conclusion
For vessel operators, maintenance teams, and procurement professionals responsible for Rolls-Royce MW 160E-S/CU1G3 and MW 500/52 E HWF 52 anchor winches, this parts catalog serves as a definitive procurement and technical reference. Every component is engineered to resolve critical marine winch pain points—corrosion, wear, compatibility issues, and unplanned downtime—while delivering long-term reliability and compliance with global marine safety standards. Whether planning scheduled overhauls, stocking critical spares, or addressing urgent repair needs, these high-performance replacement parts ensure your anchor winches operate at peak efficiency, protecting vessel safety and operational productivity.
