4.3 Ordering information Gear units with two and three stages S I - - Gear units with more than 3 stages S I 3 Casing F Foot mounting C Flange version Example: 3 4 5 6 7 8 9 10 11 12 3 4 5 6 7 25 26 27 8 9 10 11 12 4 Output shaft N Basic version F Mounting flange, large D Mounting flange, large E Mounting flange, medium R Mounting flange, small M Flange for high-performance shaft/bearing A Flange for high-performance shaft/bearing,tubing, mounting position V1, V5, V15 L Elongated bearing casing P Elongated bearing casing, tubing mounting position V1, V5, V15 5 Size 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 6 Design index: 6 Metric version 7 Inch version SI foot casing, basic version, size 3, design index 6, 2-stage, gear ratio i = 1/25, Rexnord-Stephan integral motor size 112, horizontal mounting position 7 Number of stages B 2-stage C 3-stage 8 Total gear ratio 9 Drive unit No designation: Integrated motor U IEC flange motor I I-latern M Motor chair 4. SI4 10 Accessories for gear units R Reversal lock on drive shaft Specify free direction of rotation 11 Motor 12 Mounting positions 3 4 5 6 7 8 9 10 11 12 S I F N 3 6 B 25 112 B3 Only for gear units with more than 3 stages 25 Size preliminary stage gear unit 26 Design index prelim.-stage gear unit 27 Number of stages prel.-stage gear unit 3 4 5 6 7 25 26 27 8 9 10 11 12 S I C R 5 6 C 1 6 B 350 U R - 90 - V1 SI flange casing, small mounting flange, size 5, design index 6, 3-stage, size primary-stage gear unit 1, design index primary-stage gear unit 6, 2-stage primary-stage gear unit, total gear ratio i = 1/350, U-lantern with integrated reverse lock, motor size 90, Vertical mounting position, output shaft down 172 4
4. SI4 GEARED MOTOR MOTO-REDUCTEURS GETRIEBEMOTOREN CODING CODIFICATION TYPENSCHLÜSSEL Mounting positions Einbaulagen *: refer to Rexnord-Stephan 173
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