Parking brake shoe

  • 15-Mar-2010 06:10 EDT
NEW_Youfin Shoe Technology.jpg

Wuhan Youfin’s parking brake shoe features an increased area toward the shoe tip to support a wider lining for lower lining pressure in that region, as well as reduced crease lines in the platform surface for increased lining support and adhesive bonding. The shoe is produced using a method that not only grinds the lining with a profile that generates high torque output with unburnished lining but can also add noise reduction chamfers or special profiles in one operation. The design has a wider tip without using more steel, and it supports a 27% greater lining width than its counterpart, with a corresponding reduction in operating pressure. Durability tests using a 190-mm diameter shoe and lining assembly showed no damage at the lining tips and indicated ability to withstand repeated overload applications more than 2.5 times the rated gross vehicle mass 30% hill-hold torque requirement without showing signs of lining cracking or bond separation.

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