Boston Gear HF72120KB5HP23 Right Angle Gearbox, NEMA 56C Flange Input, Hollow Output Shaft, 1.4375" Bore Diameter, 20:1 Ratio, 2.06" Center Distance, 1.40 HP and 892 in-lbs Output Torque at 1750 RPM :
F3S35N080-NCL, NEMA 56C Speed Reducer - Right-Angle Hollow Bore (80:1)
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NEMA 56c Flange Mount: Motor Mounts: Amazon.com: Tools & Home Improvement
Horizontal Pump/Motor Mounts (with Vertical Mounting Option) - SAE and USA4F17 Pump Flanges On The Timken Company
AC MOTOR, 1.5HP, 1725RPM, 3PH, 206-230V/460V, 56C/TEFC, WITH BASE | eBay
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NEMA Electric Motor Three phase 0.75kw 1hp 1400rpm frame 56 with NEMA flange | eBay
Hydra Mount
UL 90V 0.5hp dc motor 1750Rpm dc motor 56C TEFC for WEG - Coowor.com
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Motor Dimensions
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Boston Gear HF72115KB5HP20 Right Angle Gearbox, NEMA 56C Flange Input, Hollow Output Shaft, 1.250" Bore Diameter, 15:1 Ratio, 2.06" Center Distance, 1.72 HP and 840 in-lbs Output Torque at 1750 RPM: Mechanical
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113ZYT series D.C motor NEMA 56C_D.C Motor -Taizhou Hangda Electromechanical Col,Ltd.