E CHALLENGES Couplings HRC Couplings HRC Common Data ee a) Hub Assombled| Bor Pease ae salignment 5 255 305 455 535, 605 735 855 1055, ‘Angulr misaigamet capacity up to 1 deg ‘Mass is for an FF, FH or HH coupling with mid range Taper Lock Bushes F rolers to combinations of fanges: FF, FH, HH, FB, HB, BB. “The elastomeric element in Callenge HAC couplings is manuiacturediromnitile rubber with ‘an operating temperature span between -40°C and +100°C. Bisssee is HRC Type F & H er guagseem cam H Flange ( HRC Type B Cea Keywa No Bore és Giant) rye hs bn ten are fl he i shh cai core: Chane ep lyr hrc arene Alersersh nlite nh hen ied 243,Couplings ECHALLENGES’ HRC Coupling Selection HRC Coupling selection procedure 1]. Service Factor from table 1 on page 246, select the service factor that is appropriate forthe application 2] Design Power “Muttiply the absorbed power ofthe driven machine, in KW, by the service factor, from step 1) to obtain the design power. Ii the absorbed power is not known, use the prime mover power. 3] HRC coupling size selection FRoter to table 2 on page 245, Read down the left hand vertical column to the required speed. Interpolate if the exact speed isnot listed Read horizontally across on the speed line unt a power equal to oF In excess of the design power, from step 2) is reached Read vertically tothe top of the column to obtain the correct size of HRC coupling 4] Bore dimensions From the dimension tables on page 243, check thatthe selected ‘coupling wil ft the shat. HRC Coupling selection example ‘Select a Challenge HRC coupling to couple an 11 KW, 970 revimin motor to @ machine tool which has to run for 16 hoursiday. ‘The motor shaft ls 42 mm dlameter and the machine tool shaft 38 mm diameter “Taper bush flanges are required for both shafts, 1]. Service factor 2]. Design power ‘As the pump absorbed power is nat known, the motor power is sed as a basis for selecting the coupling. ‘The design power is 11 x 2.00 = 22.0 kW 3] Tyre coupling size selection Refer to table 2 on page 245 By reading down and interpolating for the required speed of 970 rev/min, itis seen that an HRC 130 wil transmit 32.0 KW which |s in excess of the 22.0 kW requited from stop 2) 4] Bore dimensions From the dimension table on page 243, the flanges on an HAG 190 take 1610 taper bushes which are available with bores to suit the shaft requirements of the application. yh tn ne oe to i sn sce cect here so yay acres aa ca 244E CHALLENGES Couplings HRC Coupling Selection Table 1, Service Factors Special cases Type of prime mover For applcatone where hock, vibration and torque aa oa ‘fluctuations occur — consult Challenge Electric motors and other smooth Internal Combustion Engines ‘running prime movers ‘number of hours per day running of driven machine under 10 | 10-16 over 16 | underto | 10-16 over 16 Uniform load light duty agitators, belt conveyors for sand etc, babe artis be 1.0 4.42 1.25 1.25 1.40 1.60 umes, ‘Moderate load variable density agitators, bet conveyors (non- uniform loads), fans over 7.5 KW, other rotary ‘compressors and pumps, machine too's, printing bial aad ‘=o: ‘0: ao 280) ‘machinery, laundry machinery, rotary soreens, fotary woodworking machinory Heavy load reciprocating compressors and pumps, positive displacement blowers, heavy duty conveyors such as screw, bucket etc, hammer mils, puiverisers, ane aoe om nm =. ies presses, shears, punches, rubber machinery, crush (Fs, metal mils Table 2, Power Ratings (kW) Pn pe ee 380) 500 165 | 420 ao | 165 sia | aaa | 105 165 700 2st | ses | 118 | zat wo | eo7 | 146 231 720 237 | 60s | 121 238 452 71s | 150 298 800 2c | o72 | 134 | 264 sos | 7s | 167 264 900 2e7 | 755 | 151 297 ses | sas | 188 297 ‘960 a7 | 805 | 161 ou7 3s | 955 | 201 3i7 1000 ax | a4 | 168 | 20 es | 995 | 200 300 1200 306 | 101 a2 | 306 a | 119 251 996 1400 ace | 118 2s | 462 ara | 139 293 462 1440 475 | 121 a2 | 475 goa | 143 301 478. 1500 4% | 126 252 | 495 2 | 149 34 495 1800 sot | 151 soz | ses | 13 179 376 504 2000 eco | 168 ss | 660 | 126 199 418 660 2500 a2 | 210 ao | es | 157 249 23 - 2880 eso | 262 aaa | 950 | 181 287 a 1. 3000 as | 252 soa | ceo | 188 299 : - 300 | 116 | 294 sas | 116 220 348 : - 4000 | 132 | 36 era. | 132 251 z = 5 4500 | 149 | a7 ws | 149 283 = e = sooo | 165 | 420 mo : : - : : Allpower ratings are constant torque, interpolate for speads not listed rye hsb teen er fl i iad nbs aoc Chalae ply ray rc ara 245