– Body: medium carbon steel 45, zinc plating; Steel ball: bearing steel GCr15 without chromium plating; Inner ring: brass H62, with PTFE;
– Body: stainless steel 304, stainless steel 303 or stainless steel 316 is optional with surface passivation.
Steel ball: alternative bearing steel GCr15 with hard chrome plating or stainless steel 440C; Inner ring: alternative low carbon steel 20 or stainless steel 304.
