BRAKE SYSTEMS / BRAKE SHOES & HARDWARE KITS
21K & 23K COMPARISON The following graphs were created using the FMVSS 121 independent test results. The results show the difference in the stopping abilities of each lining material. MORE FORCE IS BETTER: Retardation ratio represents the force (PSI) applied by the brake divided by the Gross Axle Weight Rating (GAWR). A greater ratio implies a greater brake force. RETARDATION FORCE
0.7
Min FMVSS
TRP 21K
TRP 23K
0.6
0.5
0.4
0.3
0.2
0.1
0
20
30
40
50
60
70
80
Average Line Pressure
• The above retardation force comparison shows that the 23K lining produces more overall friction than the 21K lining. • More friction applied to the drum will generate better deceleration.
95
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