1 0 J o y G l ob al U n d er g r o u n d C o n v e y o r S y s t e m s P r o d u c t O v er v i e w H C a n d H D R e t u r n R o l l s a n d D r o p B r a c k e t s HC Series 4 Diameter Return Rolls BW P art Number A 36 69AHC41045 45 42 69AHC41051 51 48 69AHC41057 57 HC Series 5 Diameter Return Rolls BW P art Number A 36 69AHC51045 45 42 69AHC51051 51 48 69AHC51057 57 3 Channel Brackets Drop P art Number 8 78A U189870308 12 78A U189870312 16 78A U189870316 4 Channel Brackets Drop P art Number 8 78A U189870408 12 78A U189870412 16 78A U189870416 3 Channel Brackets Drop P art Number 8 78A U189730308 12 78A U189730312 16 78A U189730316 5 Channel Brackets Drop Part Number 8 78A U192400508 12 78A U192400512 16 78A U192400516 6 Channel Brackets Drop P art Number 12 78A U192400612 14 78A U192400614 16 78A U192400616 4 Channel Brackets Drop P art Number Drop P ar t Number 8 78A U189730408 12 78A U189730412 16 78A U189730416 5 Channel Brackets Drop Part Number 12 78A U189730512 16 78A U189730516 HC Series 6 Diameter Return Rolls BW P art Number A 36 69AHC61045 45 42 69AHC61051 51 48 69AHC61057 57 HD Series 5 Diameter Return Rolls BW P art Number A 36 72A60154500 45 42 72A60155100 51 48 72A60155700 57 54 72A60156300 63 60 72A60156900 69 HD Series 6 Diameter Return Rolls BW P art Number A 36 72A60164500 45 42 72A60165100 51 48 72A60165700 57 54 72A60166300 63 60 72A60166900 69 A DIA U n i v er s al Mi ne D u t y R i gi d D r o p B r ac k e t A s s e m b l y DROP HCHD DROP HPlus DROP HPlus DROP HC P a r t n u m b e r f o r 4 a n d 5 d i a m e t e r r o l l s a r e 9 g a u g e s h e l l t h i c k n e s s A d d 7 t o t h e p a r t n u m b e r f o r 7 g a u g e A d d 4 t o t h e p a r t n u m b e r f o r 1 4 w a l l E x a m p l e 6 9 A H C 4 1 0 4 5 7 f o r 7 g a u g e P a r t n u m b e r s f o r 6 d i a m e t e r r o l l s a r e 8 g a u g e s h e l l t h i c k n e s s A d d 4 t o t h e p a r t n u m b e r f o r 1 4 w a l l s he l l t h ic k ne s s