For use with all standard size wheels, standard size 8mm bearings, and standard size 6mm axles. To install, place 1 bearing in the wheel. Fit the spacer into the bearing already in the wheel, and insert the other bearing into the other side of the wheel. Voila!. This stepped spacer is for use with regular (size 608) bearings and 6mm inline axles. The bearings sit on the recessed part of the spacer, providing a seamless integration to the wheels. These minimize drag on your bearings, the solid aluminum construction dissipates head and will last longer than other plastic. This package includes 8 aluminum stepped spacers for standard size wheels and bearings. Let?s face it. Bearings, spacers, and axles can be unnecessarily complicated so let?s try and make this easy. Most inline axles have an outer diameter of 6mm. Most bearings have in inner diameter of 8mm. These spacers make standard 8mm bearings compatible with 6mm axles.

Date First Available: May 11, 2010. Best Sellers Rank: #59,328 in Sports & Outdoors. Customer Reviews: 4.5 out of 5 stars 369 ratings 4.5 out of 5 stars. : B003AOGJ3A. Part Number: ?AXUP-105. Manufacturer: ?Dime Bag Hardware. Number of Items: ?8. Brand Name: ?Dime Bag Hardware. Item Weight: ?0.01 Kilograms. Item Dimensions LxWxH: ?2.3 x 2 x 0.8 inches. Package Weight: ?0.03 Kilograms. Item Package Dimensions L x W x H: ?2.6 x 2.01 x 0.47 inches.