Nick,
To make myself clearer on my lists...
BRUSH ROLLS (PRE-1992 MODELS - SQUARE ENDS)
#2059721000 - single row w/ sleeve bearings (not for machines rated more than 5.4 amps)
#2060221000 - beater bar w/ sleeve bearings (NLA) (not for machines rated more than 5.4 amps)
#2080221000 - double row w/ sleeve bearings (no stiffener) (NLA) (not for machines rated less than 4.5 amps)
#2088221000 - like #2080221000 but also w/ stiffener (NLA) (for 6.0 and 7.0 amp machines)
#2675221000 - double row w/ ball bearings (no stiffener) (not for machines rated less than 5.4 amps)
#2675227000 - like #2675221000 but also w/ stiffener (for 6.0 and 7.0 amp machines)
(all ball bearing brush rolls must be used with belt #1044260001)
BRUSH ROLLS (1992 AND LATER MODELS - HEX ENDS)
#2655225000 - double row w/ ball bearings
#2673273000 - double row w/ ball bearings and stiffener
#2673274000 - like #2673273000 but also with magnet
(all three of these rolls must be used with belt #1672260001)
~Ben
http://www.royalvacuums.com/Dealers....aspx?id=B7B82A11-0881-43DE-88FC-A8BD71E4BE79