AMERICAN BRONZE: high quality self-lubricating bronze bushings, MADE IN USA Dimensions = .627 x .813 x .750 x 1.00 x .125 (ID x OD x OAL x FOD x FTH) Material = Bronze SAE 841 (90% copper, 10% tin), Oil impregnated with 30w oil Properties = Self lubricating for long lasting smooth operation and high durability Operation = light to moderate load at high speed (rpms)