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Belt Roll Diameters
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Belt Length in Hundredths (ft.)
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
Hours Uncrated Belt Roll Diameter (in.)
Belt Gauge (in.)
1½ 1¼
1⅛
1 7/8
Imperial Belt Roll Diameters
BeltRollDiametersUncrated
Formula for Length and Diameter
D = Sqrt of (15.3Lt+S)
L = (D
2
-S)/(15.3
*
t)
D = Diameter in inches
L = Length in feet
t = Gauge of the belt in inches
S = Square of core diameter in inches
(Diameterof thecore is16 in. typicallyandused
in thischart)
FactoryMaximums
Diameter – 168 in.
Weight – 50 tons
ShippingLimitations
(withoutspecialpermit)
Truck:
Diameter – 122 in.
Weight – 20 tons
Lowboy:
Diameter – 144 in.
Weight – 18 tons
Railroad:
Diameter – 156 in.
Weight – 85 tons
*=Uncrated
3/4
5/8
1/2
7/16
3/8
5/16
1/4
3/16
0 100 200 300
400 500 600 700 800
Belt Length (m)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
Hours Uncrated Belt Roll Diameter (m)
Belt Gauge (m)
15
10
9
8
7
6
5
4
40 35 30 25 20
Metric Belt Roll Diameters
BeltRollDiametersUncrated
Formula for Length and Diameter
D = Sqrt of (0.00127Lt+S)
L = (D
2
-S)/(0.00127
*
t)
D = Diameter in meters
L = Length in meters
t = Gauge of the belt in millimeters
S = Square of core diameter sq. meters
(Diameterof thecore is .4064meter typically
andused in thischart)
FactoryMaximums
Diameter – 4.27m
Weight – 45.36m tons
ShippingLimitations
(withoutspecialpermit)
Truck:
Diameter – 3.1m
Weight – 18.14m tons
Lowboy:
Diameter – 3.6m
Weight – 16.33m
tons
Railroad:
Diameter –
3.96m
Weight –
77.1m tons
*=Uncrated
2015 Heavyweight Conveyor Belts
Belt Roll Diameters