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.
