Stelron Precision Link Chassis

The Stelron Precision Link Chassis (P-Link) provides a better level of accuracy to the indexing chain type assembly chassis. This is accomplished by means of an optional shot-pin locking beam that is synchronized to the main indexing system. The low clearance fit of the hardened pins and bushings in each link assure long term precision.
The prime mover in this indexing system is the time proven Stelron RD-3 Index Drive. This heavy-duty cam driven index drive provides optimum dynamics by providing modified sine motion through a set of hardened and CNC ground drive sprockets. The RD-3 also provides overload protection in the event of a jam. This overload is integral to the RD-3 and can be adjusted to match the dynamic loading of each particular application. When the optional shot pin-locking beam is provided, the RD-3 cam has relief ground into the dwell profile to allow for the +/- .003 accuracy at every in-line station. This locking beam provides better accuracy and will minimize the station drift that is common with other indexing chain systems.
The take-up or idler end of the conveyor incorporates a dynamic air spring chordal compensation slide. The air spring is adjustable and can provide up to 400 pounds of force to keep the chain free of slack during high speed indexing. The idler rings are also hardened and ground for minimal wear and long service life.
Each link of the chain is precision CNC machined and selectively matched at assembly. These aluminum links have one set of fixed cam followers and one set of adjustable cam followers which ride on hardened and ground plates These cam followers eliminate excessive play and provide smooth rolling contact. The hardened link pins and needle bearings provide smooth wear free pivoting around the sprockets and minimal (.001) clearance in the hardened steel linear guide ways.