Item # | 
                        
                            ANSI No. | 
                        
                            P - Pitch | 
                        
                            R - Roller Diameter | 
                        
                            W - Width Between Roller Link Plates | 
                        
                            D | 
                        
                            L1 | 
                                                        
|---|---|---|---|---|---|---|
| A2040RB | N/A 40 | N/A 1.000 in | N/A 0.312 in | N/A 0.312 in | N/A 0.156 in | N/A 0.325 in | 
| A2050RB | N/A 50 | N/A 1.250 in | N/A 0.400 in | N/A 0.375 in | N/A 0.200 in | N/A 0.406 in | 
| A2060RB | N/A 60 | N/A 1.500 in | N/A 0.469 in | N/A 0.500 in | N/A 0.234 in | N/A 0.506 in | 
| A2080RB | N/A 80 | N/A 2.000 in | N/A 0.625 in | N/A 0.625 in | N/A 0.312 in | N/A 0.640 in |