NSK High-Speed, High-Load Ball Screws HTF-SRC Series/ HTF-SRD Series/ HTF-SRE Series/ HTF Series Easy-to-use ball screws for high-load applications. Wide variety of products suited for high-load drives. Features: High-load capacity Low noise High-speed CAT. No.E3238 (9,285 KB) Download Grease Retaining A1 Seal HTF-ASRC Type/ HTF-ASRD Type The grease retaining characteristics of ball screws have greatly improved owing to the A1 seal. The A1 seal helps to maintain a clean and healthy environment. Features: Grease retaining performance Clean environment maintenance Low friction torque and low heat generation