Chinese ABEC-1 bearings are an inexpensive bearings that come in 7 & 8 mm sizes. This is one of the cheapest bearings on the market. 

Contact:  S. Lee Enterprises, Inc.

                Steven Evans, President

                243 David Hall Road

                Dover, DE 19904

                email: rollerskatesupply@gmail.com

                phone : 1 (302) 670-2810