The A 2B 7-H200 is a worm gear speed reducer with a 20:1 ratio, designed for 1800 rpm input and delivering 90 rpm output at 105 lb·in torque. It features a compression-molded glass-fill polyester housing, a ground steel worm, a precision-hobbed bronze driven gear, sintered bronze bearings, and a hollow output shaft with a 0.630 inch I.D. and a 0.031 inch flat. Dimensions are 3-3/8 inches high, 3-7/8 inches wide, and 3 inches deep, with an approximate weight of 28 oz. Input shafts are sealed to retain lubrication and exclude dirt, and the unit is prelubricated with grease.
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 | A 2B 7-H200 |
| Product Name | 20 TO 1 Right Agle Speed Reducer With Compression-Molded Glass-fill Polyester Housing |
| Gear Ratio | 20 (X : 1) |
| Rated Output Torque | 105 In-lbs (121 kg-cm) |
| Reducer Input | Solid shaft |
