ESG2 Overrunning GCr15 Indexing Freewheel Clutch
Feature
Type RIZ..ESG2 is a centrifugal lift off sprag type freewheel when the inner race is overrunning. Only this race is designed for freewheeling.
It is a self-contained unit designed for overrunning clutch applications. Typically used in crawl drives where the overrunning speed is high, but the drive speed is low and does not exceed the maximum driving speed specified in the table.
It is a type RIZ (» see page 84 for further information) equipped with an ES elastic coupling and a cover G2. The ES type is a rugged coupling, economical and suitable for many applications.
The inner race must overrun and will be connected to the driven machine shaft. When ordered complete, the unit is delivered grease lubricated, ready for either horizontal or vertical installation.
Dimensions and Capacities
| Type | Size | | | Speeds | | Weight |
| RIZ..ESG2 | dH7 | ES | TKN | nmax1) | nmin2) | nmax3) | dK1H7 | D | L1 | b1 | |
| [mm] | | [Nm] | [min-1 ] | [min-1 ] | [min-1 ] | [mm] | [mm] | [mm] | [mm] | [kg] |
| 30 | 10 | 80 | 290 | 700 | 9000 | 10.. 45 | 100 | 68 | 17 | 5 |
| 35 | 16 | 250 | 280 | 670 | 8500 | 10.. 50 | 110 | 74 | 19 | 6.6 |
| 40 | 25 | 400 | 260 | 630 | 7500 | 15.. 55 | 125 | 86 | 22 | 9.9 |
| 45 | 40 | 625 | 255 | 610 | 6700 | 20.. 60 | 130 | 86 | 26 | 11.3 |
| 50 | 63 | 1000 | 235 | 560 | 6000 | 20.. 70 | 150 | 94 | 30 | 16.7 |
| 60 | 100 | 1600 | 210 | 510 | 5300 | 25.. 75 | 170 | 114 | 35 | 24 |
| 70 | 160 | 2500 | 195 | 470 | 4000 | 30.. 80 | 190 | 134 | 41 | 32.5 |
| 80 | 400 | 5000 | 155 | 375 | 4000 | 45.. 100 | 210 | 144 | 56 | 52 |
| 90 | 630 | 7500 | 145 | 350 | 3000 | 60.. 120 | 230 | 158 | 64 | 78 |
| 100 | 1000 | 12500 | 140 | 340 | 2400 | 75.. 140 | 270 | 182 | 75 | 136 |
| 130 | 1600 | 20000 | 130 | 320 | 2400 | 90.. 160 | 310 | 212 | 85 | 199 |
NOTES
1) This maximum allowable torque transmission speed n max must not be exceeded when transmitting torque
2) Inner race
This minimum allowable overrunning speed n min should not be reduced under continuous operation.
Possible reduction of this minimum speed on request
3) Inner race
Keyway to DIN 6885.11
When ordering, please specify d k bore diameter and direction of rotation seen from arrow „A“:„R“ Inner race
overruns in clockwise direction, „L“ Inner race overruns in counterclockwise direction » Refer to mounting and maintenance instructions
Mounting Example
Pictures 
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ESG2 Overrunning GCr15 Indexing Freewheel Clutch Images
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