Service Factors For electric motor, steam turbine or hydraulic motor drives, recommendations are MINIMUM and normal conditions are assumed. Table 3 — Mechanical Service Factors Listed by Application Service Application Hour Hour AGITATORS Pure Liquids . . . . . . . . . . . . . . . . . . . . Refer to Factory Liquids & Solids................. Refer to Factory Liquids-Variable Density........... Refer to Factory APRON CONVEYORS ........ . Uniformly Loaded or Fed........... Heavy Duty ..................... APRON FEEDERS........... . 1.25 1.25 1.25 ASSEMBLY CONVEYORS Uniformly Loaded or Fed........... Heavy Duty ..................... BALL MILLS . . . . . . . . . . . . . . . BARGE HAUL PULLERS....... . BARKING Drums (Coupling Connected) ....... Mechanical ..................... BAR SCREENS (Sewage)...... . BATCHERS (Textile)......... . BELT CONVEYORS Uniformly Loaded or Fed........... Heavy Duty ..................... BELT FEEDERS ............ . BENDING ROLLS (Machine).... . BLOWERS Centrifugal ..................... Lobe .......................... Vane .......................... BOTTLING MACHINERY ...... . BREWING ............... . BRICK PRESS (Clay Working) BRIQUETTE MACHINES (Clay Working)............ . BUCKET Conveyors Uniform............... Conveyors Heavy Duty ............ Elevators Continuous ............. Elevators Uniform . . . . . . . . . . . . . . . . Elevators Heavy Duty.............. CALENDERS Rubber and Plastic ............... Textile ......................... CANE KNIVES............. . CAN FILLING MACHINES...... . CARD MACHINES (Textile) .... . CAR DUMPERS............ . CAR PULLERS............. . CEMENT KILNS............ . CENTRIFUGAL Blowers, Compressors, Discharge Elevators, Fans or Pumps .......... CHAIN CONVEYORS Uniformly Loaded or Fed........... Heavy Duty ..................... CHEMICAL FEEDERS (Sewage) . . CLARIFIERS .............. . CLASSIFIERS ............. . CLAY WORKING ........... . COLLECTORS (Sewage) ...... . COMPRESSORS Centrifugal ..................... Lobe .......................... Reciprocating Multi-Cylinder................... Single-Cylinder.................. 1.25 1.25 . . . . . . 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.75 1.75 1.25 1.25 1.25 1.25 1.25 1.25 . . . 1.25 1.25 1.75 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.50 1.75 1.50 1.50 1.50 1.25 1.50 See Mills. Rotary 1.75 2.00 2.00 2.00 1.25 1.50 1.25 1.50 1.50 1.50 1.25 1.50 1.50 1.25 See Table 2 2.00 2.00 1.50 1.50 1.50 1.50 1.50 See Table 2 1.50 1.75 1.25 1.50 2.00 1.50 See Mills. Rotary 1.25 1.25 1.50 1.25 1.25 1.50 See Table 2 1.25 1.25 1.50 1.75 2.00 CONCRETE MIXERS Continuous ..................... Refer to Factory Intermittent ..................... Refer to Factory s CONVEYORS—Uniformly loaded or Fed: Apron or Bucket ................. Assembly, Belt, Chain, Flight, Oven, Screw ......................... s CONVEYORS—Heavy Duty. Not Uniformly Fed Apron, Assembly, Belt, Bucket, Chain, Flight, Oven, Screw............... COOKERS (Brewing & Distilling), (food) .................. . 1.25 1.75 1.25 1.50 CONVEYORS—Severe Duty Live Roll ....................... Refer to Factory Reciprocating Shaker ............. 2.00 1.25 COOLING TOWER FANS....... . Refer to Factory s CRANES Dry Dock Cranes, Main Hoist, Bridge and Trolley Travel........... Refer to Factory CRUSHERS Ore or Stone .................... Sugar ......................... 1.75 . . . DISC FEEDERS ............ . DISTILLING .............. . DOUBLE ACTING PUMPS 2 or more Cylinders .............. DRAW BENCH (Metal Mills) Carriage & Main Drive ............ DREDGES................ . DRYERS & COOLERS (Mills. Rotary)................. . DYEING MACHINERY (Textile) .. . ELEVATORS Bucket-Uniform Lood ............. Bucket-Heavy Duty ............... Bucket-Continuous ............... Centrifugal Discharge ............. DEWATERING SCREENS (Sewage) 1.50 1.25 Single Cylinder .................. Refer to Factory DOUGH MIXER (Food) ....... . 1.25 1.25 1.25 1.50 1.50 1.50 See Table 2 DRY DOCK CRANES . . . . . . . . . . Refer to Factory . . . 1.25 1.25 1.25 1.25 1.25 1.25 1.50 1.50 1.50 1.50 1.50 1.25 s Escalators .................... Not Approved s Freight ...................... Not Approved Gravity Discharge ................ 1.25 s Man Lifts, Passenger ........... Not Approved EXTRUDERS (Plastic & Rubber) ......... . FANS Centrifugal ..................... See Table 2 Cooling Towers.................. Refer to Factory Forced Draft..................... Induced Draft.................... Large (Mine. etc.) ................ Large lndustrial.................. Light (Small Diameter) ............ 1.25 . . . 1.50 1.50 1.50 1.25 FEEDERS Apron. Belt ..................... Disc........................... Reciprocating ................... Screw ......................... FLIGHT CONVEYORS Uniform........................ Heavy ......................... FOOD INDUSTRY ........... . GENERATORS (Not Welding) HAMMER MILLS . . . . . . . . . . . . 1.25 1.25 1.75 1.25 1.25 1.25 1.25 GRAVITY DISCHARGE ELEVATORS 1.25 1.75 1.25 1.25 1.50 1.50 1.50 1.25 1.50 1.25 2.00 1.50 1.25 1.50 See Table 2 1.25 1.25 2.00 2.00 1.75 1.50 1.25 See Table 2 1.25 1.25 1.50 1.25 3 to 10 Over 10 Application Service Hour Hour 3 to 10 Over 10 Application Service s HOISTS Heavy Duty ..................... 1.75 Medium Duty ................... 1.25 Skip Hoist ...................... 1.25 INDUCED DRAFT FANS ....... . 1.50 LINE SHAFTS Driving Processing Equipment ...... 1.25 Other Line Shafts, Light............ 1.25 LOBE BLOWERS OR COMPRESSORS ........... . 1.25 LOG HAULS (Lumber) Incline-well Type................. 1.75 LOOMS (Textile) ........... . 1.25 Hour Hour 2.00 1.50 1.50 1.50 KILNS . . . . . . . . . . . . . . . . . . . See Mills. Rotary LAUNDRY WASHERS ........ . 1.50 LAUNDRY TUMBLERS........ . 1.25 2.00 1.50 1.50 1.25 LIVE ROLL CONVEYORS ...... . Refer to Factory 1.50 1.75 1.50 LUMBER INDUSTRY ......... . See Table 2 MACHINE TOOLS Auxiliary Drives.................. 1.25 Bending Rolls ................... 1.25 Main Drives..................... 1.25 1.25 1.50 1.50 Notching Press (Belted) ........... Refer to Factory Plate Planers.................... 1.75 Punch Press (Geared) ............. 1.75 Tapping machines ................ 1.75 MANGLE (Textile) .......... . 1.25 2.00 2.00 2.00 1.50 MASH TUBS (Brewing & Distilling) ............... . 1.25 MEAT GRINDERS (Food) ...... . 1.25 METAL MILLS Draw Bench Carriages & Main Drives..................... 1.25 Table Conveyors. Non-Reversing Group Drives ...... 1.50 Non-Reversing Individual Drives........................ 2.00 Wire Drawing & Flattening Machines ..................... 1.25 Wire Winding Machines ........... 1.50 1.25 1.50 1.50 Pinch, Dryer & Scrubber Rolls, Reversing ................ Refer to Factory Slitters......................... 1.25 1.50 1.50 2.00 Reversing..................... Refer to Factory 1.50 1.50 MILLS. ROTARY Ball and Rod Mills with Spur Ring Gear............. Refer to Factory with Helical Ring Gear ........... Refer to Factory Direct Connected................. Refer to Factory Cement Kilns, Dryers & Coolers Pebble, Plain & Wedge Bar Mills Refer to Factory Refer to Factory Tumbling Barrels................. Refer to Factory MIXER (Also see Agitators) Concrete, Cont. & lnt. ............. Refer to Factory Constant Density................. Refer to Factory Variable Density ................. Refer to Factory NAPPERS (Textile) ......... . 1.25 OIL INDUSTRY ............ . See Table 2 ORE CRUSHERS ........... . 1.75 OVEN CONVEYORS Uniform........................ 1.25 Heavy Duty ..................... 1.25 PEBBLE MILLS ............ . PLATE PLANERS ........... . 1.75 PAPER MILLS............. . See Table 2 s PASSENGER ELEVATORS 1.50 2.00 1.25 1.50 Not Approved . . . 1.50 2.00 PRINTING PRESSES......... . Refer to Factory PROPORTIONING PUMPS ..... . 1.25 PUG MILLS (Clay) .......... . 1.25 1.50 1.50 Selection of Rexnord products for applications whose primary purpose is the transportation of people is not approved. This includes such applications as freight or passenger elevators, escalators, man lifts, work lift platforms and ski tows and ski lifts. If the primary purpose of the application is material conveyance and occasionally people are transported, the Factory warranty may remain in effect provided the design load conditions are not exceeded and certification to the appropriate safety codes and load conditions has been obtained by the system designer or end user from the appropriate enforcement authorities. 3 to 10 Over 10 Application Service PULLERS (Barge Haul)....... . 1.75 PUMPS Centrifugal ..................... 1.25 Proportioning ................... 1.25 Reciprocating Single Act., 3 or more Cyl. ......... 1.25 Double Act., 2 or more Cyl.......... 1.25 Hour Hour 2.00 1.25 1.50 1.50 1.50 Single Act., 1 or 2 Cyl. ............ Refer to Factory Double Acting, 1 Cyl. ............. Refer to Factory Rotary: Gear, Lobe, Vane........... 1.25 PUNCH PRESSES (Gear Driven) . . 1.75 1.25 2.00 RECIPROCATING Conveyors & Feeders ............. 1.75 RECIPROCATING COMPRESSORS MultI-Cylinder................... 1.50 Single Cylinder .................. 1.75 2.00 1.75 2.00 ROD MILLS............... . See Mills.Rotary ROTARY Pumps......................... 1.25 Screens (Sand or Gravel) .......... 1.25 1.25 1.50 RUBBER & PLASTICS INDUSTRIES See Table 2 SAND MULLERS ........... . 1.25 SCREENS Air Washing .................... 1.25 Rotary—Sand or Gravel . . . . . . . . . . . 1.25 Traveling Water Intake ............. 1.25 SCREW CONVEYORS Uniform........................ 1.25 Heavy Duty or Feeder SCUM BREAKERS (Sewage) SEWAGE DISPOSAL SHAKER CONVEYORS SHEETERS (Rubber) 1.25 1.50 1.75 . . . 1.50 1.25 1.50 1.25 1.25 1.50 1.50 See Table 2 2.00 1.50 SINGLE ACTING PUMP I or 2 Cylinders .................. Refer to Factory 3 or more Cylinders .............. 1.25 s SKI TOWS & LIFTS ........ . Not Approved s SKIP HOIST............. . 1.25 SLAB PUSHERS............ . 1.50 SLITTERS (Metal) .......... . 1.25 SLUDGE COLLECTORS (Sewage). . 1.25 SOAPERS (Textile) ......... . 1.25 SPINNERS (Textile) . . . . . . . . . . 1.25 1.50 1.50 1.50 1.50 1.25 1.50 1.50 STEERING GEARS .......... . Refer to Factory STOKERS................ . 1.25 STONE CRUSHERS.......... . 1.75 SUGAR INDUSTRY .......... . See Table 2 1.25 2.00 TABLE CONVEYORS (Non-Reversing) Group Drives.................... 1.50 Individual Drives ................. 2.00 1.50 2.00 Reversing ...................... Refer to Factory TENTER FRAMES (Textile) .... . 1.25 TEXTILE INDUSTRY ......... . See Table 2 THICKENERS (Sewage) ...... . 1.50 TUMBLING BARRELS ........ . 1.75 VACUUM FILTERS (Sewage) ... . 1.50 VANE BLOWERS ........... . 1.25 WINCHES (Dredges) ........ . 1.25 WINDERS (Textile) ......... . 1.25 1.50 1.50 2.00 1.50 1.50 1.50 1.50 WINDLASS............... . Refer to Factory WIRE Drawing Machines ............... 1.25 Winding Machines ............... 1.50 1.50 1.50 3 to 10 Over 10 V-Class Catalog 171-110 5
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Rexnord Falk V-Class Gear Drives Catalog
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