SECTION 2 - GENERAL INSTALLATION INFORMATION
MP SERIES CONE CRUSHER TECHNICAL REFERENCE MANUAL
2-17
Figure 2-10 Tension-Deflection Method
2.8.4 Example for New V-belts
V-belt section = Standard 8V belt
Span length (center distance) = 3226 mm (127")
Deflection force (from Table 2-6) = 13.6 Kg.
(30 lbs.)
Deflection = 3226 mm (127") x 0.016 = 51.5 mm
(2.03")
Therefore, on a NEW installation with a standard
8V section belt and a span length of 3226 mm
(127"), the belt should deflect 51.5 mm (2.03") with
a spring force of 13.6 Kg. (30 lbs.) for a properly
tensioned drive.
Callout Description Callout Description
1 Crusher Sheave 6 Straight Edge
2 Motor Sheave 7 Spring Scale
3 Belt 8 Force (Per Table)
4 Span Length 9
Deflection 0.4 mm (1/64") for each 25mm
(1") of Span Length
5 1/2 Span Length 10 Pull
Standard Belt
Belt
Type
Belt
Section
Minimum
Tension
Maximum
Tension
Initial
Tension
Optibelt
or
Gates
8V
Kgs (Lbs)
13.6 (30)
Kgs (Lbs)
17.7 (39)
Kgs (Lbs)
17.7 (39)
Other
Brands
8V Consult Metso Minerals
Note: These forces are for individual belts and must be multiplied by the number of belts per band if banded
belts are being used.
Table 2-6 Deflection Forces
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