Applied Product Catalog 2016 2017 Page i17 Technical Reference

Belts All Things Industrial SM i17 NOMINAL V-BELT CROSS SECTIONS V-BELTS: WHAT TO LISTEN FOR Information used with permission of ContiTech. Squeal is usually a result of insufficient belt tension and requires prompt investigation. If squeal persists after you have checked all belts and adjusted tension, examine the drive itself for overloading. Chirp, a sound like that of a chirping bird, can occur on all types of belt drives. Never apply dressing or oil to a belt in an effort to eliminate chirps or squeaks. Realignments of an idler may help. Chirps or squeaks are often annoying, but will not harm belts. S Q UE A L CHIRP Information used with permission of ContiTech. F = Deflection Force q = Deflection, 1/64" per inch of span length C = Center Distance D = Large Sprocket Pitch Diameter d = Small Sprocket Pitch Diameter P = Span Length CONVEYOR BELT FPM TO RPM For values not shown use formula: SFM = .2618 x D x rpm SFM = Surface Feet Per Minute D = Pulley Diameter, Inches rpm = Revolutions Per Minute Pulley Dia. Inches FPM 100 150 200 250 300 350 400 500 600 700 800 900 1000 6 64 95 127 159 191 223 254 318 382 445 509 573 636 8 48 72 95 119 143 167 191 239 286 334 382 429 477 10 38 57 76 95 115 134 153 191 229 267 305 344 382 12 32 48 64 80 95 111 127 159 191 223 254 286 318 14 27 41 55 68 82 95 109 136 164 191 218 245 273 16 24 36 48 60 72 83 95 119 143 167 191 215 239 18 21 32 42 53 64 74 85 106 127 148 170 191 212 20 19 29 38 48 57 67 76 95 115 134 153 172 191 24 16 24 32 40 48 56 64 80 95 111 127 143 159 30 13 19 25 32 38 45 51 64 76 89 102 115 127 36 11 16 21 27 32 37 42 53 64 74 85 95 106 42 9 14 18 23 27 32 36 45 55 64 73 82 91 48 8 12 16 20 24 28 32 40 48 56 64 72 80 54 7 11 14 18 21 25 28 35 42 49 57 64 71 60 6 10 13 16 19 22 25 32 38 45 51 57 64 V-BELT TENSIONING Belt Section Industry Standard Description Width W, in Inches Thickness T, in Inches 3L FHP 3/8 7/32 4L 1/2 5/16 5L 21/32 3/8 3V Narrow 3/8 5/16 5V 5/8 17/32 8V 1 29/32 A Classical 1/2 5/16 B 21/32 13/32 C 7/8 17/32 D 1-1/4 3/4

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