NSK Deep Groove Ball Bearings 6214DDU ,Single Row D=70 Pipe Clamp 5 KA162 (#180) 4 36 B5S 3285 S32 5 KA162 (#180) 4 36 Blade length 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 VV: Rubber non contact seal on both sides