Mass: 0.235kg/pc
Dimensions: 25*62*17mm
Material: chrome steel
Brand: NACHI or other brands
ZE: metal seal (equals to ZZ)
2NSE: rubber seals on both sizes (equals to 2RS)
Mass: 0.284kg/pc
Size: 28x68x18mm
HS Code: 8482102000
Material: GCR15 Steel
Precision: Standard precision P0 or P6
2RS: Rubber seal on both sides (NBR seal)
NR: Snap ring groove in outer ring with appropriate snap ring