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Mine Duty Drum
Pulley Diameter
Crown Face
Face Width
Hub Type and Size
MD 24 C 57 XT45
Part Number Example
Mine Duty drum pulleys were originally designed for the
underground coal industry for longwall mining. Longwall
conveyors have belt tensions that change depending on
the varying length of the conveyor. The conveyor gets
longer as it is extended along the cut in the coal seam.
The uncertainty in the loading conditions leads to a
conveyor pulley design that is actually stronger than the
shaft it is mounted on.
Because of their heavy duty construction and proven track
record in the underground industry, mine duty pulleys are
often used above ground to take advantage of their added
service factor. VAN GORP® standard mine duty pulleys
are available in diameters ranging from 12" to 60" and
face widths to 76" .Many types of lagging are available
including SBR, Neoprene and Stat ic Conduct ive
Neoprene.
There are no ANSI/CEMA standards that govern the load
ratings or material thickness of Mine Duty pulleys. The
following chart compares the additional service factor that
the VAN GORP® Mine Duty has compared to the ANSI/
CEMA ratings for a standard pulley.
NOTE: The ANSI/CEMA ratings represents the maximum
load for the shaft for a 8,000 psi bending stress. The
service factor represents the ratio of the pulley load rating
to the shaft load rating.
Mine Duty Drum Pulleys
Table No. 9
yelluP
eziS
tfahS
retemaiD
gniraeB
sretneC
AMEC/ISNA
gnitaRdaoL
ytuDeniM
ecivreS
rotcaF
62X41 "61/73 "23 006,11 85.1
23X81 "61/74 "04 000,91 60.2
44X42 "61/75 "45 006,62 10.2
75X63 "7 "96 000,94 91.2