WBB-NA-2020
Link-Chase SAE J-661 Friction Material Test Report

SAMPLE INFORMATION
  Sample 1 Sample 2 Sample 3 Sample 4 Sample 5    
Test Number 863852            
Manufacturer WHEELING BRAKE BLOCK            
Material WBB-NA-2020            
Date 08/28/86            

INITIAL BASELINE
Application Sample 1 Sample 2 Sample 3 Sample 4 Sample 5    
1 0.340            
20 0.366            

FIRST FADE
Temp (deg f) Sample 1 Sample 2 Sample 3 Sample 4 Sample 5    
200 0.386            
550 0.353            
FIRST RECOVERY
Temp (deg f) Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Average  
500 0.386            
400 0.446         0.446 H  
300 0.483         0.453 H  
200 0.420            

WEAR
Application Sample 1 Sample 2 Sample 3 Sample 4 Sample 5    
1 0.506            
100 0.446            

SECOND FADE
Temp (deg f) Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Average Max Variation
Below Average
200 0.348         0.348 N 0.000
250 0.433         0.433 N 0.000
300 0.466         0.466 N 0.000
400 0.486         0.486 N 0.000
450 0.466         0.466 N 0.000
500 0.433         0.433 N 0.000
550 0.393         0.393 N 0.000
600 0.320         0.320 N  
650 0.233         0.233 N  
SECOND RECOVERY
Temp (deg f) Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Average Max Variation
Below Average
600 0.213            
500 0.233         0.233  
400 0.260         0.260  
300 0.293         0.293 0.000
200 0.286           0.000
FINAL BASELINE
Temp (deg f) Sample 1 Sample 2 Sample 3 Sample 4 Sample 5    
1 0.313            
20 0.433            

N=0.433=F / H=0.353=G

LINK-CHASE SAE J-661 FRICTION MATERIAL TEST REPORT
Manufacturer: Wheeling Brake Block     Date: 08/28/86
Material: WBB-NA-2020     Test Number: 863852-A1
Test Pressure: 150 psi     Sample 1 of 1
Wear Data Start Finish Loss % Loss      
Weight 7.250 6.910 0.340 4.7%      
Thickness 0.240 0.230 0.010 4.2%      
               

Initial Baseline

Final Baseline

 Wear
Application Frict Force Coefficient Frict Force Coefficient Application Frict Force Coefficient
1 51 0.340 47 0.313 1 76 0.506
5 42 0.280 58 0.386 10 61 0.406
10 49 0.326 63 0.420 20 60 0.400
15 52 0.346 68 0.455 30 63 0.420
20 35 0.365 65 0.433 40 63 0.420
          50 64 0.426
          60 64 0.426
          70 67 0.446
          80 66 0.440
          90 67 0.446
          100 67 0.446
               
FIRST FADE SECOND FADE
Time (min) Frict Force Coefficient Temp (deg f) Time (min) Frict Force Coefficient Temp (deg f)
0.0 58 0.386 200 0.0 52 0.348 202
0.5 51 0.340 236 0.5 62 0.413 231
1.0 50 0.333 267 1.0 67 0.446 271
1.5 50 0.333 297 1.5 70 0.456 315
2.0 50 0.333 327 2.0 73 0.486 353
2.5 50 0.333 356 2.5 73 0.486 393
3.0 50 0.333 387 3.0 71 0.473 433
3.5 51 0.340 417 3.5 68 0.453 469
4.0 51 0.340 445 4.0 64 0.426 500
4.5 50 0.333 470 4.5 62 0.413 528
5.0 51 0.340 495 5.0 59 0.393 554
5.5 51 0.340 520 5.5 55 0.366 575
6.0 53 0.353 542 6.0 50 0.333 591
6.5 53 0.353 550 6.5 47 0.313 606
        7.0 43 0.286 618
        7.5 39 0.260 626
        8.0 38 0.253 634
        8.5 36 0.240 642
        9.0 35 0.233 650
        9.5 35 0.233 650
FIRST RECOVERY SECOND RECOVERY
Application Frict Force Coefficient Temp (deg f) Application Frict Force Coefficient Temp (deg f)
1 58 0.386 503 1 32 0.213 591
2 67 0.446 405 2 35 0.233 494
3 60 0.453 307 3 39 0.260 390
4 63 0.420 208 4 44 0.293 302
        5 43 0.286 204
               
               
               
               

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