SWITCH ROLLERS BY L.B. FOSTER
This roller consists of one or two rollers mounted in a cast box that is pivoted on a frame that clamps to the foot of the stockrail. Roller height and switch clearance above plates is adjusted by a spring-loaded bolt.
As the wheel passes over the switch, the Bellville washer spring is further compressed until the switch bears on the slide plates. Full wheel loads are therefore taken on the slide plates, not on the roller assembly.
We have switch rollers available for VAE, QR, PRE and Vossloh Cogifer turnouts.