How can I repair a Bose Wave Radio/CD player RWAC-IP (2002 Vintage)?

The steel arbor which spins the disc on this model once had a felt-like coating on it which, when spinning the disc, prevented slippage and presumably dampened vibrations. The fuzzy coating was very thin and has gradually disintegrated over time. Bose Service tells me there are no longer parts supplied for this model. What material could I consider in attempting to replace this coating? It would have to be thin enough to maintain the proper gap between the pickup head and the disc.

Thanks.