Bevel-helical gear units B2 issible tolerance mm Flender GmbH Flender MD B2-FV-6-D

Flender/Flender Gear Units/Bevel-helical gear units B2

NT Bar Screens 1 .0 1 .2 II Chemical Feeders 1 .0 1 .2 II Collectors 1 .0 1 .2 II Dewatering Screws 1 .2 1 .5 II II Scum Breakers 1 .2 1 .5 II II Slow or Rapid Mixers 1 .2 1 .5 II II Thickeners 1 .2 1 .5 II II Vacuum Filters 1 .2 1 .5 II II SCREENS Air Washing 1 .0 1 .2 II Rotary - Stone or Gravel 1 .2 1 .5 II II Traveling Water Intake 1 .0 1 .2 II Skip Hoists II Slab Pushers 1 .2 1 .5 Stokers 1 .2 II TEXTILE INDUSTRY Batchers or Calendars 1 .2 1 .5 II II Cards 1 .2 1 .5 II Card Machines 1 .7 2 .0 III III Dry Cans and Dryers 1 .2 1 .5 II II Dyeing Machines 1 .2 1 .5 II II Looms 1 .2 1 .5 * * Mangles, Nappers and Pads 1 .2 1 .5 II II Soapers, Tenner Frames 1 .2 1 .5 II II Spinners, Washers, Winders 1 .2 1 .5 II II Tumbling Barrels 1 .7 2 .0 III III Windlass 1 .2 1 .5 II III *Consult Manufacturer . This list is not all-inclusive and each application should be checked to determine if any unusual operating conditions will be encountered. SERVICE FACTOR CHART AGMA Class of ServiceService Factor Operating Conditions 1 .0Moderate Shock - not more than 1 minutes in 2 hours . Uniform Load - not more than 1 hours per day . II1 .2Moderate Shock - not more than 1 hours per day . Uniform Load - more than 1 hours per day . 1 .5Heavy Shock - not more than 1 minutes in 2 hours . Moderate Shock - more than 1 hours per day . III1 .7 2 .0Heavy Shock - not more than 1 hours per day . Heavy Shock - more than 1 hours per day . FLENDER GRAFFENSTADEN bostongear speed reducers -1-BG 5/1QApplication Considerations Belt Conveyors Belt conveyor applications are one of those wherein the speed reducer is commonly overspecified. Proper application can, in many instances, result in substantial system economies. To determine the torque required here, first determine the belt pull, since this is the principal force. In calculating this, the effects of sliding friction and/or angle or inclination must be considered. Table 1 shows Application Factors which may be used in determining belt pull