Gear unit mounting
Strength class of the screws

Always mount gearmotors using screws of strength class 8.8.
The gearmotors in flange-mounted design and in foot/flange-mounted design listed in the following table are an exception. For these gearmotors, use screws of strength class 10.9. Use suitable washers.
Gear units with screws of strength class 10.9 | Flange Ø mm |
|---|---|
RF37/R37F SF37 | 120 |
RF47/R47F | 140 |
RF57/R57F | 160 |
SF67 | 200 |
FF/FAF77 KF/KAF77 SF77 | 250 |
FM/FAM67, FM/FAM77 KM/KAM67, KM/KAM77 | 300 |
FM/FAM87 KM/KAM87 SF87 | 350 |
FM/FAM97 KM/KAM97 | 400 |
RF147 FM/FAM107 KM/KAM107 | 450 |
RF167 FM/FAM127 KM/KAM127 | 550 |
FM/FAM157 KM/KAM157 | 660 |
RZ37 – RZ87 | 60ZR – 130ZR |
