Difference between a 2Z or ZZ and 2RS bearing
What is the difference between bearings with 2z and 2rs sealing?
A 2rs type seal has two rubber lip seals rubbing on the inner ring, which allows it to prevent the intrusion of water or other fluids harmful to the proper functioning of the bearing.
Equivalent suffixes for these bearings are type: 2RS, 2RSH, 2RS1, 2RSR, LLU, DDU EE
A 2z type seal has two metal flanges or deflectors which prevent the intrusion of dust, there is a clearance between the deflector and the inner ring, so water can get in!
The suffixes used are ZZ or 2Z
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