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• Non re-circulating ball bearing races for smooth, low-friction motion. The 4900 Series is our largest ball bearing manual positioner. Travel (mm): 100. • Factory preloaded to precision specifications to eliminate any side play and provide a uniform coefficient of friction.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.