Buyer :What do ZZ and 2RS mean respectively?
seller :ZZ represents iron cover seal 2RS represents rubber cover seal.
Buyer :What do P5P6P2 mean respectively?
seller :P5 precision high speed, P4 precision high speed mute, P2 precision ultra-high speed mute.
Buyer :I need to buy bearings with inner tapered holes.seller :K with K on the back of the model represents the inner diameter taper hole.
Buyer :What does EM stand for.
seller :EM stands for brass cage.