51 VENTILATION SYSTEMS GroBelt DRIVE BELTS • Built of WEAR RESISTANT high modulus compression rubber. • Embedded with LOW STRETCH polyester fiber cable cords. • Neoprene outer ply to PREVENT SLIPPAGE. 1/2” 5/16” 1/2” 5/16” 5/8” 3/8” TYPE A BELT Length inside plus 2” = outside Ex. HSA40- 40” inside, 42” outside TYPE AX COGGED BELT Length inside plus 2” = outside Ex. HSX40- 40” inside, 42” outside TYPE B BELT Length inside plus 3” = outside Ex. HSB40- 40” inside, 43” outside HSA20 1/2” x 22” Standard HSA21 1/2” x 23” Standard HSA23 1/2” x 25” Standard HSA24 1/2” x 26” Standard HSA26 1/2” x 28” Standard HSA27 1/2” x 29” Standard HSA28 1/2” x 30” Standard HSA29 1/2” x 31” Standard HSA30 1/2” x 32” Standard HSA31 1/2” x 33” Standard HSA32 1/2” x 34” Standard HSA33 1/2” x 35” Standard HSA34 1/2” x 36” Standard HSA35 1/2” x 37” Standard HSA36 1/2” x 38” Standard HSA37 1/2” x 39” Standard HSA38 1/2” x 40” Standard HSA39 1/2” x 41” Standard HSA41 1/2” x 43” Standard HSA42 1/2” x 44” Standard HSA43 1/2” x 45” Standard HSA44 1/2” x 46” Standard HSA45 1/2” x 47” Standard HSA46 1/2” x 48” Standard HSA47K 1/2” x 49” Kevlar HSA48 1/2” x 50” Standard HSA49 1/2” x 51” Standard HSA51 1/2” x 53” Standard HSA53 1/2” x 55” Standard HSA54K 1/2” x 56” Kevlar HSA55 1/2” x 57” Standard HSA56 1/2” x 58” Standard HSA57 1/2” x 59” Standard HSA58 1/2” x 60” Standard HSA59 1/2” x 61” Standard HSA61 1/2” x 63” Standard HSA65 1/2” x 67” Standard HSA71 1/2” x 73” Standard HSA73 1/2” x 75” Standard HSA75 1/2” x 77” Standard HSA88 1/2” x 90” Standard Type A Belt HSAX31 1/2” x 33” Cogged HSAX38 1/2” x 40” Cogged HSAX39 1/2” x 41” Cogged HSAX43 1/2” x 45” Cogged HSAX46 1/2” x 48” Cogged HSAX56 1/2” x 58” Cogged HSAX58 1/2” x 60” Cogged HSAX59 1/2” x 61” Cogged HSAX60 1/2” x 62” Cogged HSAX64 1/2” x 66” Cogged HSB35 5/8” x 38” Standard HSB38 5/8” x 41” Standard HSB30 5/8” x 33” Standard HSB83 5/8” x 86” Standard HSB97 5/8” x 100” Standard Replacing fan belts yearly maintains maximum performance. Worn belts will ride below the top edge or completely bottom out on the pulley, as shown by the red line. Item# Description Type A Belt Item# Description Type AX Cogged Belt Item# Description Type B Belt Item# Description Fan Belts
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