A-Drive 40:90 Double Worm Reducer Gearbox

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UPC: 091037047779
SKU: BH04777

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A-Drive 40:90 Double Worm Reducer Gearbox

The A-Drive 40:90 Double Worm Reducer Gearbox is a direct-drive gearbox designed with a double worm gear reducer. Featured on the 7,000 lb boat hoist of the A-Drive series. The 7,000 lb A-Drive boat hoist is powered by a 1 1/2 HP wired motor.

The gearbox housing is made of solid aluminum with a marine-grade finish. The gearbox ratio is 450:1. This gearbox includes bronze-on-steel gears. The enclosed gears are permanently lubricated with BH-USA gear grease. No leaks are guaranteed. Includes cast flange mount for the output shaft. Stainless steel fasteners are used.

This gearbox works on both overhead boat lifts and pile mount boat lifts, provided that the appropriate mounting plate is used. Attaching the direct drive boat hoist to the boat lift drive pipe requires a hardened output driveshaft.

3,000 lb. Standard Flat-Plate Boat HoistThe hoist mounted to the drive pipe requires a hardened driveshaft is not included with the gearbox.

3,000 lbs. 4,000 lbs. 7,000 lbs.
Gear Type: 40:75 40:75 40:75 40:90
HP: 3/4 1 1 1 1/2
Finish: Stainless Steel Painted Stainless Steel Stainless Steel
Output Torque: 3.699 in./lbs. 4.943 in./lbs. 4.943 in./lbs.  7.399 in./lbs.
 Motor Frame: C-Face C-Face C-Face C-Face

Gearbox Type: Double Worm Reduction
Box Type: Fully enclosed
Gear Type: 40:90
Actual Ratio: 450:1
Output Shaft: 1 1/4 in.
Input Motor Shaft: 5/8 in.
Motor Shaft to Pipe Shaft: 7.26 in.
Pipe Mount Bolt Size: (4) .55 in.
Overall Dimensions: 12.42″ x 7.56″ x 14.57″
Pipe Flange Size: 9.37″ x 7.58″ x 8.11″
Motor Mount Type: NEMA 56C
Motor Mount Bolt Size: (4) 7/16 in.
Motor Mount Hole-to-Bolt Mount: 4.15 in.
Pipe Bolt Mount Hole-to-Bolt 4.59 in.
1 1/2 HP Output Torque:  7.399 in./lbs.
Case Material: Cast aluminum
Lube Type: Specialty-blended grease
Lube: Maintenance-free
Warranty: 5 years

Product Overview

  • Made from solid aluminum
  • 450:1 gear ratio
  • Bronze-on-steel worm gear
  • Permanently lubed with a specially blended grease
  • Uses all stainless steel fasteners
  • 7,000 lbs. straight lift capacity (w/ 1 1/2 HP electric motor)
  • Able use with pile mount lifts and overhead lifts (with correct mounting plate)
  • 5 Year Manufacturers' warranty