Page 32 of Ball Screws by RBC Bearings

11 rbc part number the part numbering system used by rbc distinguishes the product and is composed of basic specifications this system is used for drawings orders and identification of product 11.1 standard precision series example gn1005 1 position 1 position 2 position 3 r 2 3 3 0350 a 4 5 c 6 o 7 position 4 position 5 position 6 position 7 indicates series type indicates thread directionrh or lh indicates iso lead accuracy class 1 0.0002 ft class 3 0.0005 ft class 5 0.001 ft class 7 0.002 ft class 9 0.006 ft indicates shaft length inches indicates ball nut style a std singlenut 2-circuit non-preload w/flange b std singlenut 2-circuit preload w/flange c std singlenut 2-circuit non-preload w/v-thd d std singlenut 2-circuit preload w/v-thd e std singlenut 4-circuit preload w/flange f std singlenut 4-circuit preload w/v-thd g std doublenut 4-circuit preload flange to flange h std doublenut preload flange mount housing i std doublenut preload base mount housing j std doublenut preload miniature housing k std singlenut non-preload miniature l std singlenut 4-circuit non-preload indicates journal style adjacent to v-thd flange a standard single bearing journal b standard duplexed bearing journal c standard multiple bearing journal d standard pillow block journal n annealed or blank end o no journal indicates journal style away from to v-thd flange a standard single bearing journal b standard duplexed bearing journal c standard multiple bearing journal d standard pillow block journal n annealed or blank end o no journal 32

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