FLENDER Standard Couplings Highly Flexible Couplings — ELPEX Series © Siemens AG 2015 Spare and wear parts ■ Selection and ordering data Flexible rings The flexible rings are wear parts. The service life depends on the operating conditions. 12 12/8 Siemens MD 10.1 · 2015 Size Article No. Weight Types EFG, ENG Types EFGS, ENGS Flexible rings for a coupling kg Flexible ring screw connection set of pins and bolts Flexible ring screw connection set of pins and bolts 270 320 375 430 500 590 690 840 970