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One Way Clutch Bearing GFR 20 freewheel clutch bearing
INTRODUCTION of GFR 20 freewheel clutch bearing:
Types GFR...F1F2/F2F7 and GFRN...F5F6 are roller type freewheels, self-contained, sealed and bearing supported, using two 160...Series bearings.
Units must be oil lubricated before use if they are delivered disassembled. Primarily used as overrunning or indexing clutches.
F2 and F6 covers are used to close the unit. They are equipped with 3 screws for oil filling, drain and level.
The shaft seal is a standard lip seal. Covers may be easily assembled by a qualified user, allowing direction of rotation to be selected on site. Alternatively, units can be delivered assembled and lubricated (except GFRN...F5F6).
Dimensions and Capacities :
| Type | Size | Overrunning speeds | Num ber | Wei ght | ||||||||||||||
| GFR GFRN | dH7 | TKN1) | nimax2) | namax3) | Dh7 | D2 | D4 | D3 | G | t | z | L1 | L | B | t1 | bP10 | f | |
| [mm] | [Nm] | [min-1] | [min-1] | [m m] | [m m] | [m m] | [m m] | [m m] | [m m] | [m m] | [m m] | [m m] | [m m] | [m m] | [kg] | |||
| 12* | 55 | 4000 | 7200 | 62 | 20 | 42 | 51 | ø5.5 | – | 3 | 42 | 20 | 27 | 2.5 | 4 | 0.5 | 0.5 | |
| 15 | 125 | 3600 | 6500 | 68 | 25 | 47 | 56 | M5 | 8 | 3 | 52 | 28 | 32 | 3 | 5 | 0.8 | 0.8 | |
| 20 | 181 | 2700 | 5600 | 75 | 30 | 55 | 64 | M5 | 8 | 4 | 57 | 34 | 39 | 3.5 | 6 | 0.8 | 1 | |
| 25 | 288 | 2100 | 4500 | 90 | 40 | 68 | 78 | M6 | 10 | 4 | 60 | 35 | 40 | 4 | 8 | 1 | 1.5 | |
| 30 | 500 | 1700 | 4100 | 100 | 45 | 75 | 87 | M6 | 10 | 6 | 68 | 43 | 48 | 4 | 8 | 1 | 2.2 | |
| 35 | 725 | 1550 | 3800 | 110 | 50 | 80 | 96 | M6 | 12 | 6 | 74 | 45 | 51 | 5 | 10 | 1 | 3 | |
| 40 | 1025 | 1150 | 3400 | 125 | 55 | 90 | 108 | M8 | 14 | 6 | 86 | 53 | 59 | 5 | 12 | 1.5 | 4.6 | |
| 45 | 1125 | 1000 | 3200 | 130 | 60 | 95 | 112 | M8 | 14 | 8 | 86 | 53 | 59 | 5.5 | 14 | 1.5 | 4.7 | |
| 50 | 2125 | 800 | 2800 | 150 | 70 | 110 | 132 | M8 | 14 | 8 | 94 | 64 | 72 | 5.5 | 14 | 1.5 | 7.2 | |
| 55 | 2625 | 750 | 2650 | 160 | 75 | 115 | 138 | M10 | 16 | 8 | 104 | 66 | 72 | 6 | 16 | 2 | 8.6 | |
| 60 | 3500 | 650 | 2450 | 170 | 80 | 125 | 150 | M10 | 16 | 10 | 114 | 78 | 89 | 7 | 18 | 2 | 10.5 | |
| 70 | 5750 | 550 | 2150 | 190 | 90 | 140 | 165 | M10 | 16 | 10 | 134 | 95 | 108 | 7.5 | 20 | 2.5 | 13.5 | |
| 80 | 8500 | 500 | 1900 | 210 | 105 | 160 | 185 | M10 | 16 | 10 | 144 | 100 | 108 | 9 | 22 | 2.5 | 18.2 | |
| 90 | 14500 | 450 | 1700 | 230 | 120 | 180 | 206 | M12 | 20 | 10 | 158 | 115 | 125 | 9 | 25 | 3 | 28.5 | |
| 100 | 20000 | 350 | 1450 | 270 | 140 | 210 | 240 | M16 | 24 | 10 | 182 | 120 | 131 | 10 | 28 | 3 | 42.5 | |
| 130 | 31250 | 250 | 1250 | 310 | 160 | 240 | 278 | M16 | 24 | 12 | 212 | 152 | 168 | 11 | 32 | 3 | 65 | |
| 150 | 70000 | 200 | 980 | 400 | 200 | 310 | 360 | M20 | 32 | 12 | 246 | 180 | 194 | 12 | 36 | 4 | 138 | |
Description
Typically, types GFR,GFRN are used with the F series covers that are designed to transmit torque, and provide oil lubrication and sealing. Usually these covers are used in pairs according to combinations shown on the following pages.
Torque is transmitted by bolts through the cover plate in this case. Types GFR, GFRN are identical except that type GFRN has a keyway on the outside diameter to transmit the torque.