The S991HY-A7575RH is a right-angle helical gear drive with a 1:1 ratio, right-hand rotation, and hollow shafts of 3/4 inch bore diameter. It features a sealed aluminum alloy case with hard-anodized finish, 1144 steel input shaft, and 4140 heat-treated steel gears. Maximum operating temperature is +200°F, with rated speeds up to 1200 rpm. The unit includes a built-in keyway and mounting holes for 1/4-20 screws. Theoretical output torque at 1200 rpm input is 56 lbf·in.
Speed reducers are components that use a gear train to reduce output rpms. MGX gearheads and speed reducers are made to the highest exacting standards of craftsmanship. Our MGX gearheads are attachable to the U.S. Bureau of Ordnance (Bu-Ord for short) frame-size servomotors without modifications to the input pinions and without complicated adapters, screw threads, etc., thanks to the versatile mounting clamps supplied. Mounting dimensions are identical to Bu-Ord OP 1755 motor dimensions.
Our speed reducers are offered in low and zero backlash options, with single- and double-ended shafts. They are available in Bu-Ord sizes 11, 15, and 18 and with an O.D. of 1-1/16”, 1-7/16”, and 1-3/4”.
Consult engineering for the gearheads and speed reducers:
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| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Gearboxes and Gearheads |
| Product Number | S991HY-A7575RH |
| Product Name | 1:1 Ratio, RH Drive, Right Angle Helical Gear Drive |
| Gearing | Helical |
