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Gear Couplings
Roto Gear Flexible Gear Couplings
Roto Gear Curved Tooth Couplings are suitable for any conceivable mechanical power transmission drives in all
industries, large / medium / small. It is compact and lighter and thus suitablefor installation where space is a
constraint.
Roto Gear Couplings mainly comprises two Hubs with external machine-cut teeth of specially designed
configuration, two flanged sleeves with internal teeth to match the two Hubs and a set of machine finished
fasteners to both the two Flanged Sleeves when in installed position. Specially designed sealing arrangement is
provided to prevent leakage of grease and ingress of outside dirt/water.
Roto Gear Couplings have its components manufactured out of properly treated steels of quality which are best
suited for all industrial mechanical power - transmission systems. Teeth profile are of specially designed
configuration to provide ample mechanical flexibility and compensation of parallel, angular and axial
misalignment of the connected shafts.
Roto Gear Couplings are available in following executions :
■ FULL GEARED FLEXIBLE TYPE ■ HALF GEARED FLEXIBLE TYPE ■ MILL MOTOR TYPE
■ SPACER TYPE ■ FLOATING SHAFT TYPE ■ BRAKE DRUM TYPE ■ VERTICAL TYPE
Selection
■ Select the Roto Gear Coupling of size that ill accommodate the diameter of the larger shaft of a drive.
■ To ensure above coupling so selected has the required rating capacity:
a) Check the service factor applicable to the drive from the service Factor Chart
b) Find out the Rating HP/100RPM of the drive as per the folloing formula:
HP X Service Factor X 100
---------------------------------- = HP/100RPM
RPM
C) Check that the rating : HP/100 RPM of the selected Coupling is either equal to, or, great than the calculated rating as above.
Minimum Clearance Required for Aligning
ENGINEERING DATA FOR FULL GEARED COUPLINGS
Coupling Rating Max. Speed Bore(MM) Approx 2 Dimensions
GD
Size HP/100RPM MaxTorqueKgM (RPM) Pilot Max WT(kg) KG. M
2 A B C E G L L1 L2 L3
RG 01 15 107 6350 15 50 11 0.140 172 110 65 18 5 60 56 117 50
RG 02 34 243 5100 20 60 16 0.206 186 125 85 18 5 85 66 137 62
RG03 63 451 4050 30 75 27 0.484 222 150 105 21 5 110 87 179 80
RG 04 120 859 3300 35 90 41 0.943 251 175 130 21 5 130 106 217 97
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Manufacturinng Pvt. Ltd Page 2 of 2
RG05 182 1303 2850 40 110 62 1.902 292 200 155 26 10 140 112 234 106
RG06 279 1998 2575 45 125 86 3.055 318 230 175 26 10 160 126 262 118
RG07 484 3465 2160 50 140 122 5.254 352 260 205 26 10 180 142 294 135
RG08 628 4496 1980 60 160 181 8.523 382 290 230 26 10 192 156 322 147
RG09 786 5628 1725 70 180 212 15.054 433 330 250 26 10 210 166 342 157
RG10 1150 8234 1450 100 220 292 30.506 492 390 310 26 10 220 182 374 172
RG11 1540 11026 1250 110 260 553 56.825 546 445 350 30 10 250 202 414 190
RG12 2052 14692 1130 120 300 712 88.604 592 490 400 30 10 290 241 492 227
RG13 2793 19998 980 140 330 982 138.802 681 555 440 35 10 320 263 536 240
RG14 3992 28583 890 200 370 1323 291.308 732 610 500 35 10 340 280 570 262
RG15 4854 34754 800 250 410 1703 353.108 782 660 540 35 15 385 321 657 302
RG16 8380 60000 730 275 455 2551 690.706 902 755 625 45 20 425 352 724 333
RG17 11916 85318 640 325 520 3622 1235.307 1003 855 720 45 20 490 403 826 385
RG18 15781 112992 580 350 610 4862 1965.710 1102 950 810 55 20 535 452 924 428
RG19 20804 148956 510 400 710 6383 3012.308 1252 1050 910 55 30 560 486 1002 456
GBM Manufacturing Pvt. Ltd. © 2009
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