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Slip Rings

Naval Bronze Alloy Rings

Naval bronze alloy rings — C46400-class corrosion-resistant rings for marine slip-ring assemblies (tin/phosphor bronze, Ø80 mm modular class) and naval structural duty (AMS 4640). High wear resistance & conductivity; verify alloy, size and application.

Material	Naval bronze / naval brass — C46400-class
Application	Naval bronze alloy rings — corrosion-resistant rings for marine and naval duty: - Slip-ring assemblies: bronze rings for marine electric motors / generators (tin & phosphor bronze — high wear resistance + excellent electrical conductivity) -
Grade	UNS C46400 (naval brass) — ASTM B21, SAE J461/J463, QQ-B-639 (Wieland Concas

Compatible Models

Marine electric motors / generators — slip-ring class (tin/phosphor bronze) — verify Modular slip-ring units (e.g. Mersen C3046-class Ø80 mm rings) — verify Marine propulsion & seawater systems (AMS 4640 class) — verify Brush-holder/commutator gear rings — verify **Always verify**: ring OD/ID alloy and dutyMersenAdvanced Refractory Metals

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Technical Specifications

Naval Bronze Alloy Rings
Specification	Value
Product Type	Naval bronze alloy ring
Alloy	C46400 naval brass (60Cu/39.2Zn/0.8Sn); AMS 4640 NAB variant
Standards	ASTM B21, SAE J461/J463, QQ-B-639
Ring Refs	Ø80 mm modular; 5.5 × 32 mm small ring
Slip-Ring Class	Tin/phosphor bronze, 0–240 V, 150 rpm (marine)
Applications	Marine motor/generator slip rings; brush gear; naval structural
Density	0.304 lb/in³ (C46400)
Size	Per ring — blocked

* Listing based on Wieland Concast, Mersen, DirectIndustry and channel data. Fitment to be confirmed per machine.

Compatible Models

This Naval Bronze Alloy Rings is designed as a direct replacement for the following machine models and series:

Not sure if it fits your machine? Send us your equipment model, motor type or original part number — our engineers will confirm compatibility and advise the correct grade. Ask an engineer →

Description

Overview

Naval bronze alloy rings — dezincification-resistant C46400 naval brass / bronze rings for marine and naval electrical and structural duty: slip-ring assemblies on marine motors & generators (tin/phosphor bronze — high wear resistance and excellent electrical conductivity), brush gear collectors, and seawater-exposed structural rings.DirectIndustryGNEE Stål (Tianjin) Co., Ltd

Key Specs

Alloy: C46400 naval brass (≈60% Cu / 39.2% Zn / 0.8% Sn); AMS 4640 nickel-aluminum bronze for structural duty
Ring refs: Ø80 mm modular slip-ring rings; 5.5×32 mm small rings
Duty: marine motors/generators slip rings (0–240 V, 150 rpm class)