The adoption of SRS-WGM Set has eliminated mutual friction between the balls, which provides excellent high speed, low noise, good sound quality, long life, and being maintenance-free for long periods of time. In addition, it help to eliminates the mutual friction between the balls, which improves the grease holdability and reduces the raised dust amount.
Model No. SRS7, SRS7W, SRS9, SRS9W, SRS12, SRS12W, SRS15, SRS15W
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