17
Running rail / running rail:
Heat-treated steel
- zinc-plated, blue passivated
- raceways hardened
Balls: roller bearing steel, hardened
Ball cage: Steel, zinc plated
Running rail / running rail:
Heat-treated steel
- zinc-plated, blue passivated
- raceways hardened
Balls: roller bearing steel, hardened
Ball cage: Steel, zinc-plated
Ball cage intermediate plate: Steel, zinc-plated