ROMA make GEARFLEX standard double engagement type gear toothed flexible coupling consists of two gear hubs, two outer flanged geared sleeves, a set of bolts, grease nipples and O rings. The external teeth of the hubs engage with the internal teeth of sleeves are bolted together thus making the unit a complete coupling.
The flexibility in the coupling is provided by specially designed gear teeth configuration which makes the coupling self-aligning duration operation.
The geared hubs are made out of tested forged steel and flanged geared sleeves are made out of tested forged steel or graded cast steel depending on the size and requirements. The teeth are generated and are involute from. The bolts are made out of high tensile steel and precision machined. The O rings are made out of specially bonded rubber to withstand compression and of adequate hardness for a long life.
The sleeves and hubs are heat treated to hardness of 240-280 BHN to provide wear-resistance properties for longer life of the couplings.
For standard ROMA make GEARFLEX couplings the lubrication is provided by Grease which penetrates the tooth contact area to form a thin layer of lubricant to minimize the friction. The grease is injected through grease nipples and is retained by O rings provided on both sides.
OPTIONAL SEALING:
On specific request, ROMA make GEARFLEX couplings are provided with alternative sealing like felt seals, oil seals, detachable sealing arrangement with or without pressure plate etc.
OIL LUBRICATION:
In case of lubrication by oil, the Couplings are provided with Oil-Plugs.
Versions Available
- Double Engagement Type
(Full Geared)
- Single Engagement Type
(Half Geared-Half Rigid)
- Mill Motor Type
- Spacer Type
- Brake Drum Type
- Vertical Type
- Disengaging Type
- Continuous Sleeve Type
(Without Bolted Flanges)
- Extended Hubs Type
- Shear Pin Type
- Spindle Type
- Cordon Shaft Type
Advantages for Gear Couplings
- High Torque / Weight Ratio
- Low Moment Of Inertia values
- No Wearing Part during misalignment of
connected shafts
- Low Maintenance
- Can absorb various misalignments viz.
Angular, Parallel, Combined Angular- Parallel
including End-Float of shafts
Weight
Gear couplings also called unisoft gear couplings are power dense and capable of transmitting high torque at high speeds while still remaining inherently well balanced. Gear couplings transmit torque by the mating on two hubs with external gears teeth that are joined by flanged sleeves with internal gear teeth. Large tooth profile for longer life, interchangeable with other ind, std gear couplings. Torque up to 81709 nm, bore up to 260 mm. Different sizes are available
WGP Brake Wheel Drum Gear Coupling Type Nominal Torque TnKNm Allowable Speed [n] r/mi n Shaft Hole Diameter d dz mm Shaft Hole Length L % D D, d2 B N C C, c2 Inertia Moment kg m~ Weight kg Y J, Z, WGP1 0. 71 4000 12 42 32 112 315 122 98 60 58 38 3/30 19/29 12/18 0. 008 5.7 WGP2 1.25 4000 22 56 52 112 315 150 118 77 68 38 3/20 23/29 16 0. 02 10 WGP3 2.5 3550 22 63 52 142 355 170 140 90 80 49 3/33 23/36 16/25 0. 05 17 WGP4 4.5 2500 30 80 82 172 400450500 200 160 112 90 45 3/13 29/41 17 0. 1 26 WGP5 7. 1 2500 30 90 82 172 225 180 128 100 45 3/23 29/41 19 0. 17 35 WGP6 10 2000 32 100 82 212 560630710 245 200 145 112 44 5/35 28/48 20 0.3 52 WGP7 14 1700 32 110 82 212 560630710 272 230 160 122 44 5/45 38/48 20 0.5 68 WGP8 20 1700 55 125 107 212 560630710 290 245 176 136 44 5/29 38/48 20/34 0.7 80 WGP9 25 1600 65 140 107 252 630710800 315 265 190 140 58 5 38/53 28/38 1 107 WGP10 40 1600 75 160 132 302 630710800 355 300 225 165 58 5/28 43/63 20/38 1.8 160 WGP11 56 1400 80 180 167 302 710 800 900 412 345 256 180 58 8/15 51/66 32 3.7 215 WGP12 80 1400 120 200 167 352 710 800 900 440 375 288 207 58 8 51/76 32/45 6.4 305 WGP13 112 1400 140 20 202 352 800900 490 425 320 235 58 8 56/76 32/38 11 395 WGP14 160 1200 160 260 242 410 9001000 545 462 362 265 65 10 68/78 10/32 18 530 Note: 1. The weight and moment of inertia in the table are not calculated for the brake disc, and their values are shown in Table 2. 2.
Snake Spring Coupling Housing is suitable for coaxial axis drive shaft system, with certain compensation performance of angular, radial and axial offset between two shafts, operating ambient temperature -30 150C, transmission torque 45-800000N m. The Basic Parameters And Main Dimensions Of The Snake -Shaped Yellow Coupling Model Nominal Torque Tn N m Allowable speed r/min Shaft hole diameter d mm Shaft hole length L mm Overall length Lo mm L, mm D mm Clearance C mm inertia moment  I kg. m2 Weight kg JSA1 45 18 28 47 97 66 95 0. 0014 1.91 JSA2 140 4500 22 35 68 105 0. 0022 2. 59 JSA3 224 25 42 50 103 70 115 0. 0033 3. 36 JSA4 400 32 50 60 123 80 130 3 0. 0073 5. 45 JSA5 630 4350 40 56 63 129 92 150 0.0119 7. 26 JSA6 900 4125 48 65 76 155 95 160 0. 0185 10. 44 JSA7 1800 55 80 89 181 116 190 0. 0451 17. 70
CLZ type gear coupling is suitable for connecting two horizontal coaxial drive shafting. It has a certain ability to compensate the relative offset of two shafts, and transmits nominal torque 0. 71 --
CLZ type gear coupling is suitable for connecting two horizontal coaxial drive shafting. It has a certain ability to compensate the relative offset of two shafts, and transmits nominal torque 0. 71 -- 1000KN
Snake Spring Coupling Housing is suitable for coaxial axis drive shaft system, with certain compensation performance of angular, radial and axial offset between two shafts, operating ambient temperature -30 150C, transmission torque 45-800000N m. brake wheel Plum-shaped elastic coupling , LMD quincunx elastic coupling , quincunx elastic coupling , Elastic sleeve pin coupling , Elastic sleeve coupling , Elastic sleeve pin coupling with brake wheel , brake wheel Elastic sleeve pin coupling , ZLD type conical shaft hole elastic coupling , conical shaft hole elastic coupling , shaft hole elastic coupling , hole elastic coupling , conical shaft elastic coupling , shaft elastic coupling , encoder coupling , flexible rubber shaft coupling , splined couplers , flexible shaft coupling types , flexible motor couplings , elastomer coupling , flexible shaft coupling , elastic pin coupling , elastic coupling assembly , pin coupling with elastic sleeve , coupling bowex elastic , mll plum blossom elastic coupling , column elastic sleeve pin coupling coupling , couple elastic , elastic coupling , elastic sleeve pin coupling , elastic spider rotex couplings , column elastic sleeve pin coupling , nylon inner elastic pin coupling , oem elastic rubber spider star jaw shaft coupling
Gear couplings Standard
Parameters And Dimensions mm Type Nominal Torque Allowable Speed min Shaft Hole Diameter d Shaft Hole Length LY J, D D, d2 C A B, Weight kg Inertia  Moment kg m2 GHCL1 0.4 4000 16 35 38 82 103 71 50 8 36 76 5. 1 0. 0037 G1ICL2 0.71 4000 20 45 44 112 115 83 60 8 42 88 6.2 0. 0067 GIICL3 1. 12 4000 22 56 44 112 127 95 75 8 44 90 8.6 0.0113 GIICL4 1.8 4000 38 65 60 142 149 116 90 8 49 98 14.5 0. 0245 G1ICL5 3. 15 4000 40 75 84 142 167 134 105 10 55 108 19.6 0. 0433 GIICL6 5.0 4000 45 90 84 172 187 153 125 10 56 110 31.2 0. 0843 GIICL7 7. 1 3750 50 105 84 212 204 170 140 10 60 118 47.5 0. 151 GIICL8 10.0 3300 55 115 84 212 230 186 155 12 67 142 60.2 0. 241 GIICL9 16.0 3000 60 135 107252 256 212 180 12 69 146 95.8 0. 470 380 22 182 316 786 17. 45 490 28 209 364 1532 53. 725 Note: 1. The weight and moment of inertia of the coupling are calculated according to the type J hole.2. It is recommended to choose the length of J-shaped hole.3. Nitriding and surface quenching shall be agreed in the contract. GEAR COUPLING , Drum gear coupling NGCL brake wheel drum coupling NGCL brake wheel drum coupling , TGL Nylon Internal Gear Ring Coupling , TGL Nylon Internal Gear Ring Coupling , CL type gear coupling , CL type gear coupling , NL type nylon internal gear coupling , NL type nylon internal gear coupling , GICL type-drum gear coupling , GICL type-drum gear coupling
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