Ball Type, Spherical, for Massey Ferguson 300, 405, 505, 510, 550, 750, 760, 850, 860 series and Challenger 520C, 540C, 550C, 560C, 660, 670, 670B, 680B series combines
| Machine | Make | Model |
|---|---|---|
| Combine | Allen | 300,405,505,510,550,750,760,850,860,520C,540C,550C,560C,660,670,670B,680B |