Main specifications
Material
Glass-fibre reinforced polyamide based (PA) technopolymer, grey-black colour, matte finish.
Standard executions
- ERF-B: brass boss, threaded blind hole.
- ERF-N:
- cylindrical blind hole, brass reinforcement and transversal semi-machined hole for pinning to shaft.
- square blind hole, with transversal set screw UNI 5929-85 (grub screws with hexagon socket and cup end).
- ERF-p: zinc-plated steel threaded stud, chamfered flat end UNI 947 : ISO 4753 (see Technical data).