Description
About Leaf Spring
Leaf spring series
- Eye to eye
- Slipper spring- flat end
- Slipper spring- hook end
- Slipper spring- open eye
- Slipper spring- radius end
Install Structure
Overslung and Underslung
- Overslung leaf springs sit on top of the axle.
They are “Over” the axle, that will increase ground clearance.
- Underslung mounting has the leaf springs attach below the axle.
That will falling ground clearance, used for some lowboy trailers.
Eye To Eye Springs
| No. of Leaves | Width | Steel Thick | Free Length | Free Open | Eye I.D. | Capacity Per Spring, lb | Weight, lb | Reference No. |
| 2 | 1.75” | 0.197” | 22.75” | 3.81” | 7/8” | 300 | 4.35 | UNA-033 |
| 2 | 1.75″ | 0.259” | 26.00″ | 4.13″ | 11/16″ | 500 | 6.62 | UNA-121 |
| 3 | 1.75” | 0.237” | 26.00” | 4.12” | 11/16” | 690 | 7.32 | UNA-122 |
| 3 | 1.75” | 0.360” | 23.13” | 3.50” | 11/16” | 1750 | 10.64 | UNA-216 |
| 4 | 1.75” | 0.360” | 26.00 | 4.25” | 11/16” | 2000 | 14.13 | UNA-051 |
| 5 | 1.75” | 0.360” | 26.00 | 4.25” | 11/16” | 2500 | 16.49” | UNA-052 |
| 6 | 1.75” | 0.360” | 26.00 | 4.25” | 11/16” | 3000 | 19.64” | UNA-053 |
| 7 | 1.75” | 0.360” | 26.00 | 4.25” | 11/16” | 3500 | 25” | UNA-054 |
| 8 | 1.75” | 0.360” | 26.00 | 4.25” | 11/16” | 4000 | 27.9” | UNA-055 |
SLIPPER SPRING- FLAT END
| No. of Leaves | Width | Steel Thick | Free Length | Free Open | Eye I.D. | Capacity Per Spring, lb | Weight, lb | Reference No. |
| 1 | 1.75” | 0.262” | 24.00” | 4.38” | 9/16” | 300 | 4.31 | UNA-018 |
| 2 | 1.75” | 0.237” | 19.00” | 4.62” | 11/16” | 600 | 4.47 | UNA-193 |
| 3 | 1.75” | 0.262” | 24.50” | 4.00” | 7/8” | 850 | 7.65 | UNA-267 |
| 3 | 1.75” | 0.360” | 25.00” | 3.50” | 11/16” | 1720 | 10.49 | UNA-206 |
| 4 | 1.75” | 0.237” | 24.50” | 4.00” | 7/8” | 1000 | 9.08 | UNA-043 |
| 4 | 1.75” | 0.360” | 25.00” | 3.50” | 11/16” | 2300 | 13.14 | UNA-208 |
| 5 | 1.75” | 0.323” | 25.00” | 3.50” | 11/16” | 2300 | 14.10 | UNA-207 |
| 5 | 1.75” | 0.360” | 30.00” | 4.88” | 7/8” | 2293 | 17.45” | UNA-040N |
| 6 | 1.75” | 0.360” | 30.00” | 4.88” | 7/8” | 3000 | 21.92” | UNA-057 |
| 6 | 1.75” | 0.237” | 25.13” | 5.00” | 7/8” | 1415 | 13.30 | UNA-017 |
SLIPPER SPRING- OPEN EYE
| No. of Leaves | Width | Steel Thick | Free Length | Free Open | Eye I.D. | Capacity Per Spring, lb | Weight, lb | Reference No. |
| 3 | 1.75” | 0.323” | 26.25” | 3.50” | 1.03” | 1500 | 10.91 | UNA-262 |
| 3 | 1.75” | 0.360” | 26.25” | 3.50” | 1.03” | 1625 | 12.07” | UNA-263 |
| 4 | 1.75” | 0.360” | 26.25” | 3.50” | 1.03” | 2150 | 14.61” | UNA-264 |
| 5 | 1.75” | 0.360” | 26.25” | 3.50” | 1.03” | 2750” | 17.06” | UNA-265
|
SLIPPER SPRING- OPEN EYE
| No. of Leaves | Width | Steel Thick | Free Length | Free Open | Eye I.D. | Capacity Per Spring, lb | Weight, lb | Reference No. |
| 3 | 1.75” | 0.323” | 26.25” | 3.50” | 1.03” | 1500 | 10.91 | UNA-262 |
| 3 | 1.75” | 0.360” | 26.25” | 3.50” | 1.03” | 1625 | 12.07” | UNA-263 |
| 4 | 1.75” | 0.360” | 26.25” | 3.50” | 1.03” | 2150 | 14.61” | UNA-264 |
| 5 | 1.75” | 0.360” | 26.25” | 3.50” | 1.03” | 2750” | 17.06” | UNA-265 |
SLIPPER SPRING- RADIUS END
| No. of Leaves | Width | Steel Thick | Free Length | Free Open | Eye I.D. | Capacity Per Spring, lb | Weight, lb | Reference No. |
| 3 | 1.75” | 0.237” | 24.74” | 4.00” | 11/16” | 800 | 7.15” | UNA-009 |
| 4 | 1.75” | 0.291” | 26.63” | 3.19” | 11/16 | 1500 | 13.93” | UNA-229 |
| 4 | 1.75” | 0.360” | 26.63” | 3.06” | 11/16 | 2500 | 17.22 | UNA-231 |
| 5 | 2.00” | 0.360” | 26.63” | 3.19” | 11/16 | 3500 | 19.99 | UNA-232 |
| 5 | 2.00” | 0.360” | 26.63” | 3.19” | 1.28 | 3500 | 20.64 | UNA-299 |
| 6 | 2.00” | 0.401” | 29.50” | 3.50” | 11/16 | 4000 | 27.90 | UNA-161 |
| 7 | 2.00” | 0.360” | 26.63” | 3.19” | 11/16 | 4000 | 26.57 | UNA-233 |
| 7 | 2.00” | 0.360” | 26.63” | 3.00” | 1.28 | 4000 | 26.57 | UNA-233 |
