A-Drive 40:75 Double Worm Reducer Gearbox

$ 631.38
SKU: BH04776
UPC: 091037047762

In stock


Free Shipping

Free Shipping

BH-USA offers free shipping for retail customers on select items. Products eligible for free shipping will be shipped via UPS Ground. We offer expedited services for those individuals that require a more time-sensitive delivery time. If you add any items that are not free shipping, the cart will calculate and display a shipping price based on ONLY the items that are not free shipping. Whenever free shipping is available, it will appear above the "Add to Cart" button on the product page.


A-Drive 40:75 Double Worm Reducer Gearbox

This reducer gearbox utilizes a double worm drive reducer. The 3,000 and 4,000 pound BH-USA A-Drive boat hoists are equipped with this gearbox. A marine-grade finish is applied to the solid aluminum construction. Bronze-on-steel gears are used in the gearbox, which has a gear ratio of 450:1. Cast aluminum is used for the motor and drive pipe flanges. Throughout the double-worm reducer, stainless steel fasteners are used. To mount the drive pipe on the reducer gearbox, a hardened drive shafts required. They are not included with this gearbox. When the appropriate mounting plate is used, this gearbox can be used on both overhead boat lifts and pile-mounted boat lifts. Hardened output driveshafts are required to attach the direct drive boat hoist to the boat lift drive pipe.

Premenate Lubrication

An exclusively blended grease is permanently lubricated inside the totally enclosed gearbox from the factory. Guaranteed not to leak.

The hardened driveshaft is not included with the reducer gearbox.

General Specifications

Product Weight: 28.35 lbs. Shipping Box: 13.50 in. x 8 in. x 11.75 in.
Product Length: 11.16 in. Product Width: 7.21 in.
Product Height: 13.23 in. Material: Cast Aluminum

Technical Specifications

Gearbox Type: Double worm reduction Box Type: Fully enclosed
Gear Type: 40:75 Actual Ratio: 450:1
Output Shaft: 1.25 in. Input Motor Shaft: 0.625 in.
Motor Shaft to Pipe Shaft: 6.59 in. Pipe Mount Bolt Size: (4) 0.50 in.
Motor Mount Type: NEMA 56C Motor Mount Bolt Size: (4) 0.375 in.
Motor Mount to Bolt Mount: 4.15 in. 3/4 HP Output Torque: 3.699 in. / lbs.
1 HP Output Torque: 4.943 in. / lbs. Lube Type: Specially-blended
Relubricating: Maintenance-free Warranty: 5 years

Flange Specifications

Motor Flange Length: 4.78 in. Motor Flange Width: 3.94 in.
Motor Flange Height: 3.37 in. Pipe Flange Length: 8.07 in.
Pipe Flange Width: 5.04 in. Pipe Flange Height: 6.77 in.

A-Drive Direct Drive Hoists

Hoist Capacity: 3,000 lbs. 4,000 lbs. 7,000 lbs.
Gearbox: A-Drive 40:75 Double Worm Reducer Gearbox A-Drive 40:75 Double Worm Reducer Gearbox A-Drive 40:90 Double Worm Reducer Gearbox
Motor: Elite 3/4 HP Stainless C-Face Wired Boat Lift Motor Elite 1 HP Stainless C-Face Wired Boat Lift Motor Elite 1 1/2 HP Stainless C-Face Wired Boat Lift Motor

Product Overview

  • Solid aluminum housing
  • 450:1 gear ratio
  • Bronze-on-steel worm gear
  • Permanently lubricated with a specially blended grease
  • Uses all stainless steel fasteners
  • 3,000 lbs. straight lift capacity (w/ 3/4 HP electric motor)
  • 4,000 lbs. straight lift capacity (w/ 1 HP electric motor)
  • Able use with pile mount lifts and overhead lifts (with correct mounting plate)
  • 5 Year Manufacturers' warranty