Standard Duty Worm Drive Gearbox (28:1 Ratio)

SKU: Build System: goBILDA

This gearbox utilizes a 28:1 ratio worm-drive reduction for applications that require extremely slow and smooth rotational motion. The worm-drive design not only minimizes backlash but also eliminates back-driving the gearmotor so a position can be held even when power is not applied. The 8mm REX™ stainless steel output shaft is supported by dual ball bearings to support a load from any orientation. The acetal and aluminum structure provides a rigid framework without adding unnecessary weight and is easily mounted to any flat surface by utilizing the base mounting tabs. This gearbox is perfect for turn-tables, time-lapse systems and low-speed applications that require high precision and torque.

Motor RPM required = 1 / (minutes per rotation desired / 28)
Example: 1 / (10 minutes per rotation / 28) = 2.8 RPM motor needed to achieve 10 minutes per rotation (at max speed)

Kit Contents:

1 1131-0004-0001 Acetal Plastic Top Plate for 3208-1006-0028
1 1131-0004-0002 Acetal Plastic Middle Plate for 3208-1006-0028
1 1131-0004-0003 Acetal Plastic Bottom Plate for 3208-1006-0028
2 1309-0016-4008 1309 Series Sonic Hub (8mm REX™ Bore)
1 1501-0006-0430 1501 Series M4 x 0.7mm Standoff (6mm OD, 43mm Length) - 4 Pack
1 1519-0006-0318 Acetal Plastic Spacer (6mm Bore, 3.18mm Thick) - 2 Pack
1 1519-4008-0318 Acetal Plastic Spacer (8mm REX Bore, 3.18mm Thick)
1 1519-4008-0400 Acetal Plastic Spacer (8mm REX™ Bore, 4mm Thick)
1 1611-0514-4008 1611 Series Flanged Ball Bearing (8mm REX™ ID x 14mm OD, 5mm Thickness) - 2 Pack
1 1702-0032-0001 1702 Series Quad Block Motor Mount (32-1)
1 2106-4008-0640 2106 Series Stainless Steel REX™ Shaft (8mm Diameter, 64mm Length)
1 2313-1006-0034 2313 Series Stainless Steel, MOD 1.25 Worm (6mm D-Bore, 34mm Length)
1 2314-0014-0028 2314 Series Brass, MOD 1.25, Hub Mount Worm Gear (14mm Bore, 28 Tooth)
1 2800-0004-0009 2800 Series Zinc-Plated Steel Socket Head Screw (M4 x 0.7mm, 9mm Length) - 25 Pack
4 individual screws 2815-0004-0008 Zinc-Plated Steel Thread-Forming Socket Head Screw (M4 x 8mm Length)
1 2910-0920-4008 2910 Series Aluminum Clamping Collar (8mm REX™ ID x 20mm OD, 9mm Length)
1 5027103001 Wera Tools 2.5mm Ball End Hex-Plus L-Key
1 5027104001 Wera Tools 3mm Ball End Hex-Plus L-Key


Weight 247g (8.7oz)
Payload 9.1kg (20lbs)

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