Description
| UNIT No. | TYPE | SHAFT DIAMETER | A | B | C | D | E | F | G |
| Mini-Frame | |||||||||
| Opening | |||||||||
| ST491A | 2 | 1 3/4 RD | 1.687 | 4.000 | 5.000 | 5.000 | 0.531 | ~~ | ~~ |
| ST491B | 4 | 1 1/2 RD | 1.687 | 4.000 | 5.000 | 5.000 | ~~ | 0.531 | 0.687 |
| FD209-1 1/8SQ | 3 | 1 1/8 SQ | 1.687 | 4.000 | 5.000 | 5.000 | ~~ | 531 | 0.687 |
| FD209-1 1/4SQ | 3 | 1 1/4 SQ | 1.687 | 4.000 | 5.000 | 5.000 | ~~ | 0.531 | 0.687 |
| FD210-1 1/8SQ | 1 | 1 1/8 SQ | 1.750 | 4.000 | 5.000 | 5.000 | 0.531 | ~~ | ~~ |
| FD211-1 1/2SQ | 3 | 1 1/2 SQ | 2.000 | 4.000 | 5.500 | 5.500 | ~~ | 0.531 | 0.687 |
| FD211-1 3/4RD | 2 | 1 3/4 RD | 2.187 | 4.000 | 5.500 | 5.500 | 0.531 | ~~ | ~~ |
| FD211-1 3/4HX | ~~ | 1 3/4 HX | 2.188 | 4.000 | 5.500 | 5.500 | 0.531 | ~~ | ~~ |
| FD211-1 15/16RD | 2 | 1 15/16 RD | 2.187 | 4.000 | 5.500 | 5.500 | 0.531 | ~~ | ~~ |
| FD211-1 15/16RDC* | ~~ | 1 15/16 RD | 2.125 | 4.000 | 5.500 | 5.500 | 0.531 | ~~ | ~~ |
| FD211-2 3/16RD | 2 | 2 3/16RD | 2.187 | 4.000 | 5.500 | 5.500 | 0.531 | ~~ | ~~ |
| * COMES WITH LOCKING CAM | |||||||||
| BORE = | RD = ROUND | SQ = SQUARE | HX = HEX | ||||||
| FLANGED DISC INTERCHANGE CHART | ||||
| Unit No. | FAFNIR | BCA | ||
| ST491A | 491A | FD – 209 – RA | ||
| ST491B | DHU 1 1/2R – 209 | FD – 209 – RB | ||
| FD209-1 1/8SQ | DHU 1 1/8S – 209 | FD – 209 – RM | ||
| FD209-1 1/4SQ | DHU 1 1/4S – 209 | FD – 209 – RK | ||
| FD210-1 1/8SQ | ~~~~ | FD – 210 – R | ||
| FD211-1 1/2SQ | DHU 1 1/2S – 211 | FD – 211 – RM | ||
| FD211-1 3/4RD | DHU 1 3/4R – 211 | FD – 211 – RE | ||
| FD211-1 3/4HX | ~~~~ | FD – 211 – RKB | ||
| FD211-1 15/16RD | ~~~~ | FD – 211 – RK | ||
| FD211-1 15/16RDC* | ~~~~ | FD – 211 – RJA | ||
| FD211-2 3/16RD | DHU 2 3/16R – 211 | FD – 211 – RB | ||
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