16X90X9 Heavy Duty Trailer Slipper Leaf Springs 1200mm 68.5MM OEM

OEM Truck Trailer Leaf Spring for sale

1. More than 10 years experience in semi trailer production.

2. Reliable quality.

3. Perfect pre-sale and after - sale service.

4. Accept customized products.

trailer leaf spring
we can supply variuos range of multi-leaf spring, parabolic leaf spring and Z-type leaf spring with high quality &best price .
used in heavy duty trailers and trucks
international standard specification
strict quality control system

Thickness : From 6 mm to 50 mm
Width: From 45mm to 152mm
Color: shinning black,dark black,grey,blue follow your requirement
Materials: SUP7, SUP9, SUP9A, SUP10, SUP11, SUP11A, 60Si2Mn, 55CrMnA and 50CrVA are available
Certificate: TS16949;ISO9001; GB/T 19001-2008
Lead time: within 30-45days after receiving orders
 

Single piece leaf spring hardness need to be HB378-445 after heat treatment;

Overheating, overburning, cracking, folding, bruising and other defects are not allowed on surface;
Each sinlgle leaf spring need to do stress shot peening treatmnet;
After the spring assembling, the center bolt must be punched and riveted;
Bolt mechanical performance level: 8.8-GB3098.1-2000;
The surface defects of bolts shall be implemented according to GB5779.1-2000;
Tolerance of bolts is according to GB3103.1-1982 Grade B product ;
The spring assembly is painted with black paint or as requested, according to QC / T484-TQ9;
Other technical requirements shall be implemented according to GB / 19844-2005.