NSK Deep Groove Ball Bearings 6820VV ,Single Row D=100 Angle Cutter Easy to set & reset 173 1666 Easy to set & reset use letters Model LA 1 Graduation 0 cold or heat resistant grease or changing the type of rubber due to contact seal Speed capability Good Good Limited by contact seals Grease sealing effectiveness Good Better than ZZ type Slightly better than VV type Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments) Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing) Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C Note (1) The above temperature range applies to standard bearings