STEM CASTERS (All Types)

Stem Casters for OEM Builds, MRO Replacement, and Light Equipment

Stem casters are specified when you need compact mounting (no top plate) and a repeatable interface into legs, sockets, tube ends, or threaded inserts. This category groups the three most common stem attachment systems so buyers can select by mount method first, then wheel material.

Shop by stem attachment

Threaded Stem Casters (thread into an insert, leveler base, or through-hole + jam nut)
Grip Ring / Friction Ring Stem Casters (press-fit into a socket/hole where back-side access is limited)
Expanding Rubber Adapter Stem Casters (expands inside a tube/leg for a secure retrofit)

Selection rule: choose the mount type first, then select wheel material for floor + load + environment.

Common interface ranges (verify per product)

Threaded stem diameters

Commonly 5/16", 3/8", 1/2" (and other sizes by series)

Grip ring stem use

Socket/hole mount where you cannot install a nut behind the leg

Expansion stem use

Hollow tube/leg retrofits; expansion sleeve locks inside the ID

Wheel sizes (typical)

2"–5" depending on duty, clearance, and floor

Threaded stem casters: when to specify

Best for: repeatable fastening into threaded inserts, leveler bases, or through-hole + jam nut.
Why buyers choose it: highest retention strength and easy torque control vs. press-fit mounts.
Watchouts: confirm thread pitch, usable thread length, and clearance for swivel radius.

Grip ring stem casters: when to specify

Best for: furniture, fixtures, displays, and equipment where you can’t access the back side for a nut.
How it holds: the ring compresses on insertion and retains in the socket.
Watchouts: socket ID and depth must match; retention varies by substrate and vibration.

Expanding rubber adapter stems: when to specify

Best for: tube-leg retrofits and hollow posts where threading isn’t available.
How it holds: expansion sleeve increases OD inside the tube for a tight mechanical grip.
Watchouts: confirm tube inside diameter range and wall thickness; do not overtighten.

Wheel material selection (fast engineer guide)

TPR / rubber-like: quiet, floor-friendly, better over small debris; typically lower capacity than hard wheels.
Polyurethane: strong load + floor protection; good for carts and institutional use; better long-term rolling than soft rubber.
Steel / iron: maximum durability on smooth concrete; not for sensitive floors; requires clean path for best performance.
Phenolic: high capacity on smooth floors; not for wet environments; best on clean, dry concrete.

Spec like a purchaser

Confirm mount interface: stem diameter, pitch, thread length / socket ID / tube ID
Choose wheel diameter for obstacles + push force (larger = easier rolling)
Choose wheel material for floor protection + environment (chemicals, wash-down, debris)
Verify loaded height and swivel radius for clearance

BHP: 1-3/4″ × 2-7/8″, slotted to 3″

BHP: 1-3/4″ × 2-15/16″ slotted to 2-3/8″ × 3-3/8″

BHP: 2-5/8” X 3-5/8” (Slotted to 3” x 3”)

BHP: 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"

(3″ Wide Casters) — Industry-Standard

BHP: 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8"

BHP: 4-1/8" x 6" slotted to 4-1/2" x 6-1/8"

View All • 21 Plate Sizes

Plate Casters

Stem Casters

Stainless Casters

Ergonomic Casters

Leveling Casters