https://www.farrellbearings.co.nz/shop/Products/Ball+Bearings/Ball+Bearing+Metric/6906DDUCM.html
6906DDUCM: 30X47X9MM Ball Bearing 2 Contact Rubber Seals - Ball Bearing Metric - Ball Bearings -...
Equivalent to 6906 2RS, 6906 2RS1, 689 LLU Premium Brand - FAG, TIMKEN, NSK
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