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Gfr...F2f3 Holdback (backstop) Clutch for Reducer1
Cylindrical Roller Bearing, Holdback, Backstop
Changzhou Suma Precision Machinery Co., Ltd.
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Product Description Description of GFR...F2F3 Holdback (backstop) Clutch for ReducerIntroduction of GFR..F2F3/F3F4 are roller type freewheelsTypes GFR..F2F3/F3F4 are roller type freewheels, self-contained, sealed and bearing supported, using two160.. series bearings.They use the GFR base module. Units must be oil lubricated before use if they are delivered disassembled and in any case for the F3F4 combination. These cover combinations are primarily used as backstops, as shown overleaf. The F3 cover acts as a torque arm and has an integrated stop bolt. The stop bolt should go into a slot in a fixed part of the machine. The stop bolt must have a radial clearance of 13 % of the bolt's diameter. The torque arm and bearings must not be prestressed in any way. F2 and F4 covers are used to close the unit. They are equipped with 3 screws for oil filling, drain and level.If using cover type F4, shaft end plate and its screw must be sealed to avoid oil leakage through the keyway.Covers are easily fitted, allowing on site selection of rotation direction. If requested units can be delivered assembled and lubricated for the F2F3 combination. Parameters of GFR..F2F3/F3F4 are roller type freewheels TYPESizeTorqueOverrunning speedDIMENSIONSWeightdH7TKN1)nimax2)DD2CL 1L2L3L4FEL5f [mm][Nm][min-1][mm][mm][mm][mm][mm][mm][mm][mm][mm][mm][mm][kg]GFR...F2F3 GFR...F3F412 55 3100 62 20 10 42 64 10 13 59 44 6 0.51.415 125 2800 68 25 10 52 78 10 13 62 47 10 0.81.820 181 2400 75 30 12 57 82 11 15 72 54 10 0.82.325 288 1600 90 40 16 60 85 14 18 84 62 10 13.430 500 1300 100 45 16 68 95 14 18 92 68 10 14.535 725 1200 110 50 20 74 102 18 25 102 76 12 15.640 1025 850 125 55 20 86 115 18 25 112 85 12 1.58.545 1125 740 130 60 25 86 115 22 25 120 90 12 1.58.950 2125 580 150 70 25 94 123 22 25 135 102 12 1.512.855 2625 550 160 75 32 104 138 25 30 142 108 15 216.260 3500 530 170 80 32 114 147 25 30 145 112 15 219.370 5750 500 190 90 38 134 168 30 35 175 135 16 2.523.580 8500 480 210 105 38 144 178 30 35 185 145 16 2.532 90 14500 450 230 120 50 158 192 40 45 205 155 16 347.2100 20000 350 270 140 50 182 217 40 45 230 180 16 376 130 31250 250 310 160 68 212 250 55 60 268 205 18 3110 150 70000 200 400 200 68 246 286 55 60 325 255 20 4214 NOTES 1) T max = 2 × T KN 2) Inner race overruns. Values without radial lip seals3) Outer race overruns. Values without radial lip sealsKeyway to DIN 6885.1*) GFR12 has through holes in outer race Packaging
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