1.Core Materials: 440 material is magnetic, 304 material is non-magnetic,304 and 440C stainless steel are commonly used. 304 is highly corrosion-resistant and low-cost, making it suitable for mildly corrosive environments. 440C offers high hardness, wear resistance, and high-temperature resistance, but its corrosion resistance is slightly inferior to 304.
2.Applicable scenarios: Mainly resistant to harsh environments, commonly found in wet/outdoor machinery (waterproof and rust-proof) and chemical equipment (acid and alkali corrosion resistance).
3.Performance characteristics: The advantages are corrosion resistance and rust resistance, and some can maintain high speed; the disadvantages are slightly lower load-bearing capacity under the same specifications, and the price is 2-3 times that of ordinary bearings, so it is preferred in non-general scenarios.
4.Maintenance points: Use special grease, avoid direct contact with hands during installation (to prevent sweat corrosion), keep it dry and free of acid and alkali for long-term storage, and check for rust regularly.