GOTHENBURG, Sweden (June 29)—SKF A.B., parent of seal maker Chicago Rawhide, has acquired Sealpool A.B., a Swedish maker of sealing systems for hydraulic and pneumatic applications. Sealpool, based in Landskrona, Sweden, reports annual sales of about $8.5 million, with 33 employees. Terms fo the deal were not released. Sealpool´s product range, especially that for hydraulics, is complementary to SKF´s and therefore will strengthen the firm´s industrial sealing business, said Tom Johnstone, president of SKF Seals Division. Sealpool Managing Director Wilhelm Christerson will continue to head the company under SKF ownership.