Wheels Manufacturing Bearing Retainer Replacement bearings and retainers for various cup and cone applications such as hubs, headsets and bottom brackets. Made with grade 300 bearings and sold in bags of 10. SPECIFICATIONS Size Bearing Diameter Bearing Count Application 1/4" x 7 1/4" 7 Front and rear hubs - 3/8 axle Shimano CB Small "A" type 1/4" x 9 1/4" 9 Bottom Bracket /Crank - English 3pc 3/16" x 7 3/16" 7 Front hub - 5/16 axle 3/16" x 15 3/16" 15 1" Headsets - MX, Schwinn, Tange 5/16" x 12 5/16" 12 BMX Bottom Brackets 5/16" x 10 5/16" 10 Bottom Bracket /Crank - American 1pc 5/16" x 9 5/16" 9 Bottom Bracket / Crank - American 1pc 5/32" x 20 5/32" 20 1-1/8" Headsets - Tange, CDS, Shimano 5/32" x 22 5/32" 22 1-1/8" Headsets - ST, SA, SE, MX 5/32" x 16 5/32" 16 1" Imported headsets | Wheels Manufacturing | Bearing Retainer 1/4" X 9 Bag 10