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77 Series – 3500 Lbs Max Capacity – 5 x 7.25 Top Plate – Maintenance Free

Series 77


Swivel Section: Sealed dual row ball bearings

Legs: 3/8 inch x 2.75 inch laser cut from mild steel, CNC formed and continuously welded on the inside and outside of the yoke base

Kingpin: Kingpinless Style Design with precision ball bearings

Axle: 3/4 inch diameter, zinc plated, fine threads

Lubrication: Sealed ball bearing is lubricated and requires zero maintenance.

Wheel Diameter: 8 inches – 12 inches

Wheel Width: 3 inches

Overall Height: 10.5 inches- 12.5 inches

Swivel Lead: 3.5 inches standard

Finish: Zinc plated standard, wet paint and powder coat paint are options.

Top Plate: 5×7.25x.38 size with 3.375 x 5.25 slotted to 4.125 x 6.125 with 1/2 mounting bolts. Optional sizes available.


The 77 Series Caster utilizes a dual (sealed precision) bearing design, enabling smooth and easy rotation with a maximum capacity of up to 3,500lbs per caster.  This caster series is the first in the Maintenance Free line to support 3″ wide wheels, up to a 10″ diameter. When coupled with TWERGO® 3″ wide wheels, this caster provides excellent ergonomic performance, even with a wider wheel. The dual bearings also help reduce push force when starting the cart rolling, while the wheels are not all parallel.


Excellent for production racks (power transported, manually handled and mobile fixtures), parts bins, conveyor system, and other applications where maintenance free casters and ergonomics are concerns.


Variations in top plate size are available. If you are looking for the greatest ergonomic improvement and willing to give some carrying capacity, look at a optional change in the lead to achieve this. Once you have the lead that works in your application, find the wheel with a sealed bearing that will minimize rolling resistance and add to the ergonomic design that you need.

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77 Series – 3500 Lbs Max Capacity – 5 x 7.25 Top Plate – Maintenance Free
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