This is a roller used in the HD2. It works with our generation 4 tracks. It includes the 3/8" shaft, bearings, lock collars, and the roller assembly itself. The roller is made of UHMW for the outer guide pieces, the large center roller is rubber.
Features and Specifications:
- Weight: 0.68 lbs
- Shaft: Steel (4.75" x 3/8" dia.)
- Large Roller Diameter: 2.9"
- Roller Wheel Assembly: 3.5" total width