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Internal Bearing support spacer used with 8mm O-Ring on 9.525mm axles - 9.525 x 13.525 x 16.5mm

This special Spacer measures 12mm (id) x 16mm (od) x 16.5mm (long) & is known as a Bearing Support Spacer. This Bearing Support Spacer fits between the Bearings, along side the 10mm O-Ring when fitting Bearings into a TRAMPA hub when mounting the wheel onto 12mm Axles.

Over time, during the usage of your board, the bearings & spacers are put under a lot of force. Ultimately this force has to go somewhere... The Bearings use a Steel ring in their assembly where as the Bearing Support Spacers are made from Aluminum. Steel is much stronger than Aluminum & when forced against each the aluminum will loose out every time! This is what happens to your spacers between the bearings, the Bearings put force onto your spacers as a consequence over time the spacers shrink... With enough time its possible for an annoying rattle to start.... That's when you fit these 16.5mm spacers with the little 10mm O-Rings to prevent the rattles!! :-)

Bearing conversion Spacer converts 12mm Bearings to fit 9.525mm Skate & Spring Truck TiTanium Axles

Use this handy little part to convert 12mm TRAMPA bearings to fit onto 9.525mm (3/8ths of an inch) Axles... You will commonly find 9.525mm axles on Skate Trucks or Trucks with Titanium Axles. Simply slip the Conversion Spacer into your 12mm Bearing & then insert the Wheel back onto the axle.... Couldnt be easier.... :-)

The pressed aluminium is accurately made so it fits snugly into your bearing and tightly slides over the axle. The flanged Rim allows the axle nut to tighten without squashing the bearing wall, ensuring free spinning maximum performance from your bearings at all times. The sleeve can be re used over and over again but remember to replace your bearings regularly....

8mm Rubber O-Ring to fit in Bearings - 2mm Section x 8mm Bore NITRILE 70

This O-Ring should be fitted when a 9.525 x 16.5mm Bearing Support Spacer is fitted into the wheel assembly when fitting a wheel onto 9.525mm Axles. It fits alongside the Bearing Support Spacer, in-between the Bearings. This O-Ring prevents rattles from the spacer against the bearings. Over time, during the usage of your board, the bearings & spacers are put under a lot of force. Ultimately this force has to go somewhere... The Bearings use a Steel ring in their assembly where as the Bearing Support Spacers are made from Aluminum. Steel is much stringer than Aluminum & when forced against each the aluminum will loose out every time! This is what happens to your spacers between the bearings, the Bearings put force onto your spacers as a consequence over time the spacers shrink... With enough time its possible for an annoying rattle to start.... That's when you fit these little O-Rings!! :-)