- Rugged steel side plates formed to include bumpers and trolley guards
- Frames connected by steel equalizer pin, secured by two nuts on each side
- Universal tread flanged trackwheels equipped with shielded ball bearings
- Easy rolling on American standard shaped, wide flange shapes or patented rail
- Hardened wheels and axles for added strength and durability
- Spacer washers can be shifted inside or outside for easy adjustment to wide range of beams
- To be used with hook suspended hoists
- Suspension plate for easy attachment is standard
- Bearings prepacked with lifetime lubricant
- One-year warranty
