Product Overview
S300 plain woodruff key (KEY,PLAIN WOODRUFF) is a miniature semicircular locating fastener designed for diesel engine crankshaft, gear shaft and camshaft assemblies. Installed in the matching keyway of shaft and rotating components, it delivers circumferential positioning torque transmission and prevents relative rotation slip between shaft and gears.
This woodruff key solves common transmission faults such as gear slipping, power loss, abnormal knocking and keyway abrasion caused by soft, deformed or worn locating keys, ensuring synchronous and stable operation of engine transmission components under long-term high-torque load.
Core Product Advantages
High-strength alloy steel one-piece forming, overall quenching heat treatment, high surface hardness, strong shear resistance, not easy to cut or deform under torque impact.
Precision CNC profiling and polishing, uniform arc and flat side surface, perfect fit with standard woodruff key slots, eliminate assembly gap and circumferential slip.
Compact semicircular structure, tiny overall size 2.5cm1.1cm0.5cm, lightweight 0.01KG, suitable for narrow hidden shaft installation space without assembly interference.
Multi-layer anti-rust passivation surface treatment, resist erosion of engine oil, high-temperature oil vapor and dust, adapt high-temperature engine compartment environment.
Wide temperature adaptability, stable rigid performance between -40℃ ~ +130℃, no brittle crack in cold weather or softening under continuous high-temperature operation.
Standard arc size and thickness, fully match general diesel engine shaft keyway specifications, plug-and-play installation without cutting or secondary grinding.
Strict factory shear force test, dimensional tolerance inspection and anti-rust aging test before delivery, stable batch quality for repair shop daily replacement and bulk wholesale procurement.
Basic Product Parameters
Part Number: S300
English Name: KEY,PLAIN WOODRUFF
Chinese Name: Woodruff Key / Semicircle Key
Applicable Equipment: All Series Diesel Engines
Overall Dimension: 2.5cm 1.1cm 0.5cm
Product Weight: 0.01KG
Main Material: Quenched high-hardness alloy steel + anti-rust passivation coating
Working Temperature: -40℃ ~ +130℃
Core Function: Position shaft and rotating gears, transmit torque, prevent relative rotation slip
Feature: High hardness, anti-shear, anti-slip, anti-rust, mini lightweight, precise arc tolerance, easy installation
Installation Position: Engine crankshaft, camshaft and gear shaft keyway matching position
Package: Neutral export carton, independent anti-rust oil paper separate wrapping, avoid scratch and extrusion deformation
Application Scenarios
Universal positioning fastener replacement parts for heavy-duty trucks, construction machinery, mining vehicles and generator sets equipped with diesel engines. Suitable for long-distance highway transportation, mountain full-load climbing and high-intensity continuous operation environments. Effectively eliminate gear slipping and power attenuation faults, reduce engine transmission system maintenance frequency.
Purchase Reminder
Please confirm engine shaft model and matching part number S300 before ordering to ensure accurate fitting. We support bulk wholesale for global auto parts distributors, engine repair workshops and mechanical fleets with sufficient spot stock and competitive bulk prices. Shaft and gear assembly positioning guidance are provided after purchase.
