

















See Great Lakes Belting on
MacRae's Blue Book

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| Conveyor
Belt Tension Calculations |
TC
= F1 x L x CW
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F1 =
.035" (Normal friction factor for average conditions (over
20 degree F) to move empty belt).
L = Belt length (feet).
CW = Weight of conveyor belt components
(See Table A in Engineering Handbook).
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TL
= F2 x L x MW
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F2s =
.04" (Normal friction factor to move load horizontally).
L = Belt length (feet).
MW = Material weight (lbs. per lineal
foot)
| MW
= |
33
TPH
Belt
Speed (fpm)
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or
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MW
= |
Total
Material Load in Lbs.
L
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H = Difference
between elevation of terminal pulleys (ft.)
TH = H x MW
TE = TC + TL + TH
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Second, additional tension must be added to the effective Belt Tension
(Te) to prevent slippage on the drive pulley. This is called Slack Side
Tension (Ts), or commonly called T2.
- Ts
= D x Te
- D =
Drive factor (See Table B in Engineering Handbook).
Next,
the total tension To = Te + Ts
To is the total operating tension, or commonly called
Allowable Working Tension, and is expressed in PIW (pounds per inch of
width). To is sometimes referred to as TL.
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Useful Resources:
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