TRA Leaf Spring for American Truck
The Bogie leaf spring is suitable for special and heavy weight semi-trailer , it install with BPW ,FUWA,HJ, L1 Axle.
The Capacity: 24,000 to 32,000 kg . The item total has 17 pcs,the raw material size is 120*14 for frist and second pcs, the third and the fourth is 120*20, others are 120*18. Raw material kind is SUP9.The free arch is 110±3mm,the Development length is 1850, the centre hole is 20.5.
The advantages of our factory:
The Ford F/L-Series are a series of full -size pickup and heavy duty trucks from the Ford Motor Company which has been sold continuously since 1948 till now for F-series and till 1988 for L-series .
Class 1: F-100,F-101,F-102,F-103,F-104,F-105,F-106,F-107,F-108,F-109,F-10N,F-110,F-111.
Class 2: F-112,F-113,F-140,F-141,F-142,F-143,F-150,F-151,F-250,F-250XLT,F-250HD,F250,F251,F252,F253,F254,F255,F256, F257,F258,F259,F260,F261,F262,F263,F264,F265,F266(Note:models produced in 1972-1979:F350,F351,F352,F353,F354,F355,F356,F357,F358,F359)
Class 3 : F-350,F-360
Class 4 : F-450
Class 5 : F-550
Class 6 : F-650
Class 7 : L-600/L-6000 series,L-700/L-7000 series
Class 7 : L-800/L-8000 series,L-900/L-9000 series
We are very strict about quality:
| 1) Raw matrail . |
| Thickness less than 20mm. We use material SUP9 |
| Thickness from 20-30mm.We use material 50CRVA |
| Thickness more than 30mm. We use material 51CRV4 |
| Thickness more than 50mm. We choose 52CrMoV4 as the raw material |
| 2) Quchenging Process |
| We strickly controled the steel temeprure around 800 degree. |
| we swing the spring in the qenching oil among 10 seconds according to the spring thickness. |
| 3)Shot Peening. |
| Each assmembing spring set under stress peening . |
| Fatigue test can reach over 150000 cycus |
| 4) Electrophoretic paint |
| Each item use electrophoretic paint |
| Salt spray testing reach 500hours |
