friction clutches - Arten Freios e Embreagens Industriais

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Table of Contents◗APPLICATION ENGINEERING DATA“Air Champ” ®◗ THERMAL CHARACTERISTICSCheck the clutch or brake heat sink capacity for high inertia starts or stops and the continuousthermal horsepower dissipation requirement for cyclic starts and stops.English1.Calculate the energy per cycle (E c ) absorbed by the clutch or brakeeach start or stop by the formula.E c = .00017 (WK 2 ) (N 2 – N 1 ) 2E c = rotational energy in ft lbs. N 1 = Initial RPMWK 2 = total inertia load in lb. ft. 2 N 2 = Finial RPMSelect a clutch or brake that has a heat sink capacity which exceedsthe energy in ft. lbs. produced during each start or stop.2.Determine the continuous thermalhorsepower (Hp t ) requirement.HP t = (E c )CPM33000E c = rotational energy in ft. lbs. when the clutch or brake is applied.CPM = the number of starts or stops per minute.Select a clutch or brake that has a continuous thermal horsepowerrating at operating speed that exceeds the thermal horsepowerrequirement. Refer to the charts on page 363.Permissible cycles per minute are estimated using the formula:CPM = HPt(33,000)E cHp t = rated clutch or brake continuous thermal HP dissipationE c = rotational energy in ft. lb. when the clutch or brake is appliedMetric1.Calculate the energy per cycle (E c )absorbed by the clutch or brake each E c =start or stop by the formula:J (∆n) 2182.4E c = rotational energy in Joules when the clutch or brake is appliedJ = total inertia load in kgm 2∆n = initial RPM – final RPMSelect a clutch or brake that has a heat sink capacity whichexceeds the energy in Joules produced during each start or stop.2.Determine the required continuousthermal in kw (P th ) P th =Ec/60 (CPM)1000E c = rotational energy in Joules when the clutch or brake is applied.CPM = the number of starts or stops per minute.Select a clutch or brake that a continuous thermal dissipation rating atoperation speed that exceeds the thermal dissipation requirement.Permissible cycles per minute are estimated using the formula:Pth 60CPM = E cP th = Rated clutch or brake continuous thermal dissipationE c = Rotational energy in Joules when the clutch is appliedCycle duty theoretically can be as much as 100 CPM or more. However, the practical limit depends upon the ability of the clutch or brake to dissipate heat rather clutch or brake response time.Each time a machine starts or stops, heat is generated at the clutch or brake interface. This heat energy is equal to energy per cycle (E c ) of the rotational inertia at operating speed.◗ HEAT SINK CAPCITIESFriction ClutchesHeat SinkModel Capacity (ft. lbs.)Metric ClutchesHeat SinkModel CapacitySpring Engaged BrakesHeat SinkModel Capacity (ft. lbs.)High Capacity BrakesHeat SinkModel Capacity (ft. lbs.)M 1,900BW 5,650F-450/FW 30,000L-600/LW 60,000M-800/MW 110,000H-1000/HW 230,000XHW 200,000Dual Plate ClutchesHeat SinkModel Capacity (ft. lbs.)DPC-9T 220,000DPC-11T 360,000DPC-13T 690,000DPC-15T 820,000High Capacity ClutchesHeat SinkModel Capacity (ft. lbs.)DFE-1150 390,000DFE-1650 870,000DFE-2200 1,187,000DFE-2500 1,460,000QFE-1150 780,000QFE-1650 1,740,000QFE-2200 2,374,000QFE-2500 2,920,000B-275 10,000 JoulesF-450 41,000 JoulesL-600 81,000 JoulesM-800 149,000 JoulesH-1000 312,000 JoulesFriction BrakesHeat SinkModel Capacity (ft.lbs.)M 1,900BW 5,650S-450 30,000S-600 60,000S-800 125,000S-1000 200,000T-450 35,000T-600 60,000T-800 125,000T-1000 170,000TSE-450 35,000TSE-600 60,000TSE-800 125,000TSE-1000 170,000Brake Disc's for CaliperBrakesHeat SinkModel Capacity (ft. lbs.)12 Standard 265,00014 Standard 320,80016 Standard 376,60018 Standard 432,40020 Standard 529,40022 Standard 636,10024 Standard 703,00018 Ventilated 1,500,00021 Ventilated 2,100,00024 Ventilated 2,700,000DFB-1150 390,000DFB-1650 870,000DFB-2200 1,187,000DFB-2500 1,460,000QFB-1150 780,000QFB-1650 1,740,000QFB-2200 2,374,000QFB-2500 2,920,000Metric BrakesHeat SinkModel CapacityS-450 41,000 JoulesS-600 81,000 JoulesS-800 170,000 JoulesS-1000 271,000 JoulesThru-Shaft ClutchBrakesHeat SinkCapacity (ft. lbs.)Model Clutch / BrakeFWCB 25,000 / 25,000LWCB 45,000 / 25,000MWCB 90,000 / 45,000HWCB 125,000 / 120,000364
Table of Contents“Air Champ” ®APPLICATION ENGINEERING DATA◗ THERMAL HORSEPOWER VS. RPM◗ F-450 & FW CLUTCHESHorsepower0.30.3F-4500.270.27FW0.240.240.210.210.18 0.180.15 0.150.120.12 0 200 400 600 800 1000 1200 1400 1600 1800◗ L-600 & LW CLUTCHESHorsepower0.8L-6000.70.60.50.4LW0.30.20 200 400 600 800 1000 1200 1400 1600 1800◗ M-800 & MW CLUTCHESHorsepower1.0M-8000.90.8MW0.70.60.50.40 200 400 600 800 1000 1200 1400 1600 1800R.P.M.R.P.M.R.P.M.◗ H-1000, HW & XHW CLUTCHES ◗ S & T-450 BRAKESHorsepower3.02.52.01.5XHWHW0 400 800 1000 1200 1400 1600 18000 200 400 600 800 1000 1200 1400 1600 18001.00.5H-1000Horsepower0.6S & T-4500.50.40.30.20.100 200 400 600 800 1000 1200 1400 1600 1800◗ S & T-600 BRAKESHorsepower1.501.251.000.750.500.251.5S & T-6001.2510.750.50.2500 0 200 400 600 800 1000 1200 1400 1600 1800R.P.M.R.P.M.R.P.M.◗ S & T-800 BRAKES◗ S & T-1000 BRAKESHorsepower2.52.01.51.00.5S & T-8000 0 200 400 600 800 1000 1200 1400 1600 1800Horsepower3.03S & T-10002.521.510.5000 200 400 600 800 1000 1200 1400 1600 18002.52.01.51.00.5◗ DPC-9, 11, 13, 15 CLUTCHESHorsepower9.0DPC-158.0DPC-137.06.05.0DPC-114.03.0DPC-92.01.000 200 400 600 800 1000 1200 1400 1600 1800R.P.M.R.P.M.◗ S & T-1200 BRAKES◗ S & T-1400 BRAKESHorsepower7.06.00S & T-1200000 0 200 400 600 800 1000 1200 1400 1600 18005.04.03.02.01.0Horsepower14.0S & T-140012.010.08.06.04.02.000 200 400 600 800 1000 1200 1400 1600 1800R.P.M.R.P.M.R.P.M.365
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Table of ContentsPRODUCTCAT ALOG10-
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Table of Contents◗PRODUCT NUMBER
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Table of Contents◗FAMILY OF PRODU
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Table of Contents◗FAMILY OF PRODU
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Table of Contents“Air Champ” ®
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Table of Contents◗APPLICATION GUI
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Table of ContentsWeb ProductsGUIDE
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Table of Contents◗ MICRO FRICTION
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Table of Contents◗“Air Champ”
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Table of ContentsWeb ProductsIn acc
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Table of ContentsWeb ProductsTENSIO
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Table of ContentsWeb ProductsHousin
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Table of Contents◗ AIR PRESSURE C
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Table of ContentsEclipse SERVOMOTOR
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Table of ContentsEclipse SERVOMOTOR
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Table of ContentsEclipse LINEAR MOT
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Table of ContentsEclipse NEMA AC MO
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Table of ContentsEclipse METRIC AC
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Table of Contents◗ BW MODEL BRAKE
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Table of Contents◗CALIPER BRAKES
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Table of Contents◗CALIPER BRAKESS
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Table of Contents◗DRUM BRAKES“A
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Table of ContentsDRUM BRAKES “Air
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Table of ContentsDRUM BRAKES “Air
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Table of Contents◗HEAVY DUTY BRAK
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Table of Contents◗METRIC BRAKES
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Table of Contents◗BRAKESWeb Produ
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Table of Contents◗TENSION CONTROL
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Table of Contents◗CLUTCH/BRAKES
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Table of Contents◗CLUTCH/BRAKESFM
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Table of Contents◗CLUTCH/BRAKESA
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Table of ContentsCLUTCH/BRAKES “A
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Table of Contents◗METRIC CLUTCH/B
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Page 336 and 337: Table of Contents◗WEB AUXILLARY C
Page 342 and 343: Table of Contents◗CONTROLS“Air
Page 352 and 353: Table of Contents◗REPAIR KITS“A
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friction clutches - Arten Freios e Embreagens Industriais

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