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The newly developed SWISSONOR # 20 precision main-bearing is 1 : 1 compatible with the original bearing and very easy to install. Perfect replacement for old, defective and worn original Thorens bearings.

The bottom plate consists of bronze, with metal-to-metal contact (without using a nylon washer at the bottom) and a fully sealing o-ring seal. 

Significantly improved sound characteristics compared to the original bearing.