AT Stainless Steel Bearing MS 20X32X7mm Metal Seal (S6804ZZ)
These Stainless Steel, Metal Shielded Bearings are made from AISI440 (9Cr18) stainless steel, with 1Cr18Ni9 stainless steel shields.
Stainless Steel bearings offer 20% less load carrying capacity than the harder 52100 chrome steel bearings, but they have vastly improved corrosion and rust resistance, and can operate at temperatures -100°C to +250°C.
Bearings come pre-packed full of Kyodo Yushi Multemp SRL grease. Top quality, long performance life, wide temperature(-50°C to 150°C) range grease. It has anti-rust and noise suppressive properties, ideal for small bearings. Lithium based.
Metal shield bearings offer the lowest drag of any sealed bearing, with excellent grease retention and good protection from dirt, dust, water etc.