Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
All measurements indicate the wheel diameter by the tread width.
The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.
W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.
Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.
Wheel = wheel diameter · capacity is per caster.















































Hudson Bearings has made ball transfers in the USA since 1969 and was an early pioneer in the ball transfer industry. Its 25,000 sq. ft. production facility in Columbus, Ohio covers CNC lathe and milling, stamping, screw machining and fabrication. CasterHQ carries Hudson drop-in, flanged, stud-mount, flangeless, flying saucer, heavy duty and air cargo ball transfer units.
Mount style. Drop-in units sit in a hole and are held by an integral top flange. Flange-mounted units bolt through a surface. Stud-mounted units thread into equipment. Flying saucer units recess into a surface to form a smooth, multi-directional rolling area and have integral mounting holes. Flangeless units suit installations without a top flange.
Ball and housing material. Hudson offers carbon steel, stainless steel and nylon balls depending on the series. Stainless steel adds corrosion resistance. Nylon is a non-marking and non-electrostatic option. Air cargo units are also offered in aluminum and zinc-nickel coated options.
Load. Hudson lists drop-in units from 125 to 750 lb, flying saucer units from 40 to 200 lb, and heavy duty and air cargo units from 550 to 850 lb per unit depending on configuration. Check each product's rating and space units so the load is shared evenly.
Hudson ball transfers are used in air cargo and ULD handling, aerospace, die handling, metal manufacturing and fabrication, industrial robotics, medical devices, military logistics and as a substitute for casters where loads need to move in any direction.
Hudson Bearings makes its ball transfers in its production facility in Columbus, Ohio, and states that it is committed to manufacturing all of its products in the U.S.
Use drop-in units for holes in a table or deck, flange-mounted units to bolt through a surface, stud-mounted units to thread into equipment, and flying saucer units to recess into a surface for a smooth rolling area.
Carbon steel suits general dry use, stainless steel adds corrosion resistance, and nylon is a non-marking and non-electrostatic option for lighter loads.
It depends on the series. Hudson lists drop-in units from 125 to 750 lb, flying saucer units from 40 to 200 lb, and heavy duty and air cargo units from 550 to 850 lb per unit depending on configuration. Check the rating on each product and plan spacing so every unit stays within it.
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