Regal Rexnord
Silent Chain
Regal Rexnord silent chain(inverted - tooth chain) is a high - performance drive chain in which the link plates are profiled with gear - like teeth that engage sprockets in a smooth, progressively meshing action — rather than the impact engagement of roller chain — enabling higher - speed, lower - noise, and lower - vibration power transmission in automotive engine timing drives, industrial compressor and pump drives, and precision machinery where quiet operation and accurate shaft phasing are critical.Under the Rexnord and Link - Belt brands, our silent chain line includes standard and heavy - duty series, variable - pitch designs for ultra - quiet operation, and custom configurations with guide links, multiple - strand widths, and attachment fixtures for specific OEM machine designs.Powertrain engineers, compressor manufacturers, and industrial - drive system designers choose Regal Rexnord silent chain when operating speeds exceed the practical limits of roller chain, when noise regulations or occupant comfort demand lower sound levels, or when precise shaft - to - shaft angular phasing must be maintained without the backlash that develops as roller chain elongates.The smooth, progressive tooth - engagement of silent chain also provides higher energy - transfer efficiency — an increasingly valuable attribute as industry focuses on reducing energy consumption across all drive types.
Send an Enquiry
We'll get back to you on WhatsApp.
Trusted by Industry Leaders
High - Speed Capability Beyond Roller Chain
Smooth tooth engagement allows operation at speeds exceeding 5,000 feet per minute(FPM) chain speed — well beyond the practical limit of roller chain, where impact forces cause rapid elongation.
Low - Noise, Low - Vibration Operation
Progressive tooth meshing reduces the chordal - action impact and tonal noise of roller chain, meeting the acoustic requirements of automotive engines and building - services equipment.
Accurate Shaft Phasing & Timing
Silent chain maintains precise angular relationship between driving and driven sprockets, essential for engine camshaft timing, printing - press register, and synchronized multi - axis drives.
High Efficiency(> 98 %)
The rolling tooth - engagement action of silent chain yields higher mechanical efficiency than V - belts or roller chain at comparable speeds, reducing drive energy losses.
Multiple - Strand Width Flexibility
Silent chain can be manufactured in a wide range of widths(strand counts) for the exact horsepower and shaft - distance requirements of the application, without the multi - strand load - sharing challenges of roller chain.
Guide - Link & Custom Configurations
Available with center guide links, side guide links, or both, plus custom - designed link plates for integration into the specific machine architecture.
Silent Chain in Automotive Timing & Engine Applications
Silent chain is the dominant camshaft - timing drive technology for millions of internal - combustion engines worldwide, from passenger cars to heavy - duty trucks.In this application, the chain must maintain precise valve - timing throughout the engine’s life — often 150,000 miles or more — despite exposure to hot engine oil, speed variations from idle to redline, and minimal tensioning envelope.Regal Rexnord silent chain for timing drives features ultra - close pitch tolerances, optimized tooth profiles that minimize chordal action, and the wear resistance to maintain timing accuracy over the long service intervals that modern engines demand.Our silent chain is manufactured in dedicated automotive - quality production cells with the process controls, cleanliness standards, and documentation that automotive OEMs require.
Silent Chain vs.Synchronous Belt vs.Gears: Drive Selection Criteria
Silent chain, synchronous(toothed) belts, and gears compete for high - speed, synchronized - drive applications, each with distinct advantages.Silent chain offers the highest ultimate tensile strength and fatigue life at elevated temperatures and is the preferred choice where the drive must survive occasional shock overloads or where fire resistance(metal chain versus rubber belt) is a safety requirement.Synchronous belts offer the lowest noise, no lubrication requirement, and lower cost — ideal for office - building HVAC and light industrial drives.Gears provide the ultimate positional accuracy and torque density but at higher cost and with lubrication requirements.Regal Rexnord’s multi - technology power - transmission portfolio provides each of these drive technologies, enabling our application engineers to recommend the optimal solution for each specific speed, load, environment, and cost requirement.