BELT SELECTION CHART

Belt Type	Maximum Recommended Working TensionkN/m	Nominal Carcass Thickness(mm)	Carcass Weight(Kg/m2)	Pulley Diameters(mm)*			Min Belt Width(mm)	Maximum Belt Width for Satisfactory Load Support(mm)** Material Weight in Tons/m3
				A (Head Pulley)	B (Tail Pulley)	C (Snub Pulley)		<0.75	0.75-1.5	1.5-2.5	2.5-3.2
312/3	31.5	3.0	3.72	400	315	250	400	1000	800	650	-
400/3	40	3.2	3.97	400	315	250	400	1200	1000	800	-
400/4	40	4.2	5.21	500	400	315	650	1400	1000	1000	-
500/3	50	3.6	4.46	500	400	315	500	1200	1000	800	-
500/4	50	4.4	5.46	500	400	315	650	1600	1600	1200	2000
500/5	50	5.3	6.57	630	500	400	650	1600	1600	1200	2000
630/3	63	4.0	4.96	500	400	315	500	1400	1400	1000	2000
630/4	63	4.9	6.08	630	500	400	650	1600	1400	1200	2000
630/5	63	5.6	6.94	630	500	400	800	2000	2000	1600	2000
800/3	80	4.5	5.85	500	400	315	800	1600	2000	1800	2000
800/4	80	5.5	6.82	630	500	400	1000	2000	2000	2000	2000
800/5	80	6.5	6.94	800	630	500	1000	2000	2000	2000	2000
1000/4	100	6.2	7.96	800	630	500	1000	2000	2000	2000	2000
1000/5	100	7.0	8.68	800	630	500	1000	2000	2000	2000	2000
1000/6	100	7.6	9.42	1000	800	630	1000	2000	2000	2000	2000
1250/4	125	7.2	8.93	800	630	500	1000	2000	2000	2000	2000
1250/5	125	7.9	9.83	1000	800	630	1000	2000	2000	2000	2000
1250/6	125	8.5	10.54	1000	800	630	1000	2000	2000	2000	2000
1400/4	140	8.6	10.66	1000	800	630	1200	2000	2000	2000	2000
1600/5	160	9.1	11.28	1000	800	630	1200	2000	2000	2000	2000
1600/6	160	9.6	11.90	1250	1000	800	1200	2000	2000	2000	2000
1800/5	180	10.9	13.52	1250	1000	800	1200	2000	2000	2000	2000
1800/6	180	12.1	15.00	1400	1250	800	1200	2000	2000	2000	2000
2000/5	200	11.0	13.64	1250	1000	800	1200	2000	2000	2000	2000
2000/6	200	12.1	15.00	1400	1250	800	1200	2000	2000	2000	2000

The above chart pertains to Belts with Polyster /Nylon (EP) carcass. Details pertaining to Belts with Nylon / Nylon carcass can be provided on request.

• To determine total belts thickness, add the sum of the cover thickness to the carcass thickness.
• *Pully diameters apply to belts operating at 60% to 100% of their recommended max. belt tension.
• For lower tensions, smaller diameter pulleys may be used.
• **The load support of a belt is determined by belt width, tensile strength and bulk material density. The figures given in the table relate to 3 roll 30 degree carrying idlers.
• When extremely thick covers are selected, the advise of out Technical Service Department should be sought.