| Current Part # | Previous Part # | Roller Series | Roller Type | Roller Adjustment Type | Housing Material | Standard or Precision Bearings | Wheel Material | Wheel Diameter | Wheel Rolling Diameter | Wheel Profile | Wheel Profile Radius | Estimated Panel Weight | Suggested Market |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2115272 | 1990-P4000-2SS | 1990 | Tandem | End Adjust | Stainless Steel | Precision | Stainless Steel | 1.25" | 1.00" | Concave Radius | 0.125" | 600 lbs | Mid-Level |
| 2115273 | 1990-3000-2 | 1990 | Tandem | End Adjust | Steel | Standard | Steel | 1.125" | 0.87" | Concave Radius | 0.125" | 300 lbs | Entry Level |
| 2115274 | 1990-4000-2 | 1990 | Tandem | End Adjust | Steel | Standard | Steel | 1.25" | 1.00" | Concave Radius | 0.125" | 400 lbs | Entry Level |
| 2115275 | 1990-4000-2SS | 1990 | Tandem | End Adjust | Stainless Steel | Standard | Stainless Steel | 1.25" | 1.00" | Concave Radius | 0.125" | 400 lbs | Mid-Level |