PACIFIC CONVEYORS LTD. STANDARD PRODUCT CATALOGUE												engineered material handling systems								return to main page
	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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