Bearing with dustproof cover
SKF bearings with dust cover, suffix 2Z, dust cover is made of stainless steel. Dust formation of jade inner ring shoulder a very narrow gap, and can withstand high temperatures and high speed. With dustproof cover bearing is mainly applied in the inner ring rotation condition. If the outer ring rotation, bearing in high speed operation, will lead to the leakage of the lubricating grease.
Bearing with sealing ring
SKF bearings with contact seals, suffix 2RS1, a sealing ring is a steel skeleton of the oil resistance and anti-wear nitrile rubber set. The Xie sealing ring allowed working temperature of -40 to +100 DEG C, in a short time can be up to +120 ℃. Contact type sealing ring sealing lip seal with the inner shoulder. Seal the outer edge of the groove in the outer ring, in this location can provide a good sealing effect.
When the sealed bearings running under certain extreme conditions, such as high speed or high temperature, may result in grease in the inner ring and the seal leakage between. If the leaks would cause damage effects on SKF bearing configuration, it will need to go through a special design steps.