Are Rear Discs Worth It?
On the backside of the bracket is a machined recess to properly position the seal and correct preload on the bearing. The original backing plate slid over the seal, and the retaining flange held the seal in position, which preloaded the bearing. With this new design, the recess is the same dimension as the backing plate, so the retaining flange simply strengthens the new thicker bracket. View Related Article
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