RING 4907475 - Caterpillar

Table 6
Superfinishing Chrome Carbide
Recommended Operating Parameters    
Abrasive     3MTM Diamond Microfinishing Film 675L (20 micron)            
Film Feed Rate     0.33 inch/min    
Applied Force     25 lb/inch    
Oscillation     Low (Low/None: final pass)    
Film Width     2 inch*    
# of Passes     1 - 2 passes with a 25 - 35 Ra input finish**    
Obtainable Finish     Using a 5 micron stylus:
Ra =
0.076 µm (3.000 µin) to
0.203 µm (8.000 µin)
OR
Rz =
0.70 µm (27.559 µin)
Note: Either scale can be used to measure the surface finish, however, Ra and Rz do not equate to each other physically or mathematically as they measure different surface profiles. Only one of these measurements needs to be met.    
    * Wider film allows faster traverse    
** Finish obtained with 3MTM 663FC (70 micron)
=300 SFPM     =0.0625 inch/rev.    
Rod Diameter     RPM     Traverse Rate    
(inches)     (Workpiece)     (inch/min)    
1.50     764.0     47.7    
2.00     573.0     35.8    
2.50     458.4     28.6    
3.00     382.0     23.9    
3.50     327.4     20.5    
4.00     286.5     17.9    
4.50     254.7     15.9    
5.00     229.2     14.3    
5.50     208.4     13.0    
6.00     191.0     11.9    
6.50     176.3     11.0    
7.00     163.7     10.2    
7.50     152.8     9.5    
8.00     143.2     9.0    
8.50     134.8     8.4    
9.00     127.3     8.0    
9.50     120.6     7.5    
10.00     114.6     7.2    
10.50     109.1     6.8    
11.00     104.2     6.5    
11.50     99.6     6.2    
12.00     95.5     6.0    
12.50     91.7     5.7    
13.00     88.1     5.5    
13.50     84.9     5.3    
14.00     81.9     5.1    
14.50     79.0     4.9    
15.00     76.4     4.8    Specifications
For dimensional specifications refer to the Hydraulic Information System (HIS).