High-Quality Plastic Spring Perch for Vehicle Suspension

Key Components in a shock absorber spring perch

1. upper spring perch

Metal (steel/aluminum) or composite platform that supports the coil spring. 

Contoured to match spring shape and prevent slippage. 

2. Strut Bearing/Rotating Plate

Allows smooth steering rotation (front suspensions). 

Contains ball bearings or low-friction polymer races. 

3. Rubber/Polyurethane Isolation Bushings

Dampens vibrations and road noise. 

OEM versions use soft rubber; performance upgrades often use stiffer polyurethane. 

 4. Mounting Hardware

 Includes nuts, washers, and sometimes integrated studs for chassis attachment.