PACIFIC CONVEYORS LTD.
STANDARD PRODUCT CATALOGUE
engineered material
handling systems
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Technical Page 9  WEIGHTS, FORMULAE AND TABLES  
WEIGHTS OF COMPONENTS
1) ROLLERS
BETWEEN FRAME RAILS
MODEL
10" 15" 16" 21" 22" 27" 33" 39" 51" PER INCH
ROLLER WEIGHT (in pounds)
138A 0.9     1.3     1.8                 0.08
138G 1.0     1.5     2.0                 0.13
196S     2.7     3.6     4.4 5.2 6.1 7.8 0.15
196G     2.8     3.7     4.6 5.4 6.3 8.1 0.15
192S     4.5     6.0     7.7 9.4 11.0 14.3 0.28
199S     5.3     7.1     9.2 11.4 13.1 17.1 0.33
254S     3.9     5.2     6.6 8.4 10.2 13.3 0.26
251S     7.1     9.2     11.4 13.5 15.7 20.0 0.36
297S     8.7     11.8     13.8 17.9 21.0 27.2 0.52
3509S     11.0     14.4     17.8 21.2 24.6 31.4 0.57
3530S     20.6     27.6     34.7 41.8 48.8 62.8 1.17
2) BELTING AND CHAIN
BELT WIDTH 12" 24" 36" 48" inch/ft
MATERIAL BELT WEIGHTS (pounds per foot)
PVC-120 black [Friction Back..Covered one side] 1.02 2.04 3.06 4.08 .09
PVC-120 black [Friction Face..Friction Back] .76 1.51 2.27 3.02 .07
PVC-120 white [Friction Back..Covered one side] 1.02 2.04 3.06 4.08 .09
PVC-150 black [Friction Back..Covered one side] 1.28 2.57 3.85 5.14 .11
2 ply black rubber [Rough Surface..Friction Back] 1.32 2.64 3.96 5.28 .11
1/2" x 1" flat wire mesh 3.4 6.80 10.2 13.60 .28
PVC-120 cw 1-1/2" cleats @ 12" 1.36 2.72 4.08 5.44 .11
Intralox series 400 flat top 0.96 1.92 2.88 3.84 .08
Intralox series 900 flat top 1.81 2.62 4.43 5.24 .15
#40 ROLLER CHAIN 0.41 lbs. per foot of conveyor  
#50 ROLLER CHAIN 0.68 lbs. per foot of conveyor
#60 ROLLER CHAIN 0.96 lbs. per foot of conveyor
#80 ROLLER CHAIN 1.70 lbs. per foot of conveyor
FRICTION FACTORS
A) COMPONENT MATERIALS     B) ACCUMULATION FACTORS     Use factors (A) on left in determining belt pull and horsepower requirements in normal operation.
Factors (B) in the right hand table are useful when calculating extra belt-pull required for accumulated or deflected loads. These
values are approximations, valid for materials in dry conditions at normal range of room temperatures 
SLIDER BED/BELT .30   CARDBOARD/STEEL GUIDE .35
ROLLER BED/BELT .05   CARDBOARD/ROLLER .30
BELT DRIVEN LIVE ROLL .10   CARDBOARD/UHMW GUIDE .21
CHAIN DRIVEN LIVE ROLL .06   STEEL/UHMW .28
LINESHAFT ROLLER .06   CARDBOARD/INTRALOX .21
INTRALOX/UHMW WEARSTRIP .13   GLASS/INTRALOX .19
INTRALOX/STEEL WEARSTRIP .26   ALUMINUM/INTRALOX .40
GEOMETRIC TABLES
Used in calculating dimensions of incline conveyors
and resultant forces due to inclined and deflected loads
   
SOME USEFUL CONVERSIONS
Incline sine cosine tangent 1 gal. (Imperial) = 4.54 litre 1 gal. (US) = 3.78 litre
15 degrees 0.259 0.966 0.268 1 gal. (Can) = 1.2 gal. (US) 1 Kilogram = 2.205 lbs
20 degrees 0.342 0.939 0.364 1 inch = 25.4 millimeter 1 Meter = 39.37 ins
25 degrees 0.423 0.906 0.466 1 cu. meter = 35 cu. foot 1HP = 0.75 kilowatt
30 degrees 0.500 0.866 0.577 torque = belt pull x radius 1 m.p.s. = 200 f.p.m.
35 degrees 0.574 0.819 0.700 atmospheric pressure = 1 Kg/sq cm (14.7 lbs/sq in)
40 degrees 0.643 0.766 0.839 roll circumference = diameter x 3.14
45 degrees 0.707 0.707 1.000  
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