Boca 37MM x 20MM x 9MM x 40MM Flanged Sealed Bearings F6904-Z F6904-ZZ MF6094ZZC
New Boca 37MM x 20MM x 9MM x 40MM Flange, Flanged Sealed (both sides) Bearings Part Number F6904Z, or F6904ZZ, or MF6094-ZZC. Well here’s the deal on these. They were listed on the freight manifest simply as “Boca MF6904-ZZC.”.