Stem Castors

Stem Castors and Furniture Castors for Australian Workshop and Equipment Use

Stem castors mount via a stem (a vertical shaft) that fits into a hole in the equipment frame — a different mounting style from plate castors which bolt to a flat surface. The stem mount suits furniture, light equipment, retail fixtures, and applications where a flat plate mount isn't practical. AIMS Industrial supplies stem castors in the styles and sizes Australian trade and industrial users actually need, from EasyRoll and Colson.

The stem castor types we stock

• Threaded stem castors — male-threaded stem that screws into a tapped hole in the frame; the standard fit for industrial furniture
• Socket stem castors — straight stem that press-fits into a socket fitting in the frame
• Grip-ring (grip-neck) stem castors — friction-grip stem with a retaining ring; quick-fit without threading
• Expanding-rubber stem castors — stem with a rubber sleeve that compresses to grip the inside of tube frames
• Plug-in stem castors — for pre-fitted socket installations

Where stem castors earn their place

• Furniture and chairs — office chairs, mobile furniture, modular workstations
• Light equipment — small workshop trolleys, retail fixtures, display stands
• Tube-frame trolleys — where expanding-rubber stem castors fit cleanly into the tube
• Retail and hospitality fixtures — shelving units, display stands, food service equipment
• Light medical and laboratory equipment — instrument trolleys, mobile work stations

Stem castor versus plate castor — which mounting

Plate castors bolt to a flat surface with multiple bolts — stronger mounting, suit heavier equipment. Stem castors mount through a single hole — simpler mounting, lower load capacity, suit lighter equipment. For trolleys and equipment over 100-150kg per castor, plate castors are the right choice; for lighter applications, stem castors are easier to install and suit furniture-style frames better.

Wheel materials — match to floor and load

• Polyurethane (PU) — quiet, easy on smooth concrete, doesn't mark floors; the workshop favourite
• Solid rubber — quiet, suits rough or uneven surfaces, good shock absorption
• Nylon — hard, fast, handles oil and chemicals; transmits noise and shock
• Soft rubber (TPR) — for retail and hospitality where quiet operation matters

Sizing and load capacity

Stem castor capacity is typically 30-100kg per castor depending on wheel diameter and stem strength. Common wheel sizes range from 50mm through 125mm. Stem dimensions vary by application: M8, M10, M12 threads are common for threaded stems; 7/16 inch and 5/8 inch grip-ring sizes are common for grip-stem applications. Match the stem size to the existing equipment frame.

Brands stocked at AIMS

EasyRoll and Colson cover the stem castor range across the everyday workshop sizes and capacities. Replacement wheels, bearings, and stems are stocked alongside complete castors so equipment can be repaired rather than replaced when only the wheel has worn.

Companion ranges at AIMS

Stem castors sit alongside our broader castor and wheel range — see plate castors, pneumatic and flat-free wheels, replacement tyres and tubes, and castors and wheels for the broader range.

Need help speccing stem castors for furniture, equipment, or specific frame mounting? contact our team — we'll match by load, wheel material, stem type, and dimensions.