







Brake casters hold a parked cart in place on store slopes, parking-lot ramps, and load/unload positions. Two brake mechanisms are common in retail cart fleets: tread-lock (presses a friction shoe against the wheel) and side-brake (engages a pin in the yoke).
The P&H tread-lock 8-inch lumber-cart variant is Z40P382CLPLB — same wheel and yoke as Z40P382CLPL but with a brake added. For 4-inch and 5-inch carts in janitorial and stainless fleets, T30C141CLDTB (4-inch stainless stem with side brake) and Z20P244HBCD (5-inch with brake) are the OEM specs. Standard practice is to install brake casters on the front corners — the operator can reach them from the push handle.
If you can send a photo of the existing wheel and a measurement across the tread, our fitment team will confirm the exact match within minutes during business hours. There is no upcharge for fitment review.
Top questions from store-ops teams and refurbishers.
Lay a ruler across the face of the wheel from one outside edge to the other, through the center of the axle. That is the wheel diameter. Then measure the axle hole through the hub center: most US carts are 5/16 inch, but some specialty carts use 1/2 inch. Tread width is the thickness from inside face to outside face. Full measuring guide.
Polyurethane lasts longer, handles higher loads, and resists flat spots from parked carts. Rubber is quieter on hard floors and slightly cheaper. TPR (thermoplastic rubber) sits in between. For high-traffic stores, polyurethane is almost always the better long-term cost. Material comparison.
Yes. Volume tier pricing applies automatically at 50, 200, and 500+ wheels. Multi-store fleets get dedicated reps, NET-30, EDI, and custom packaging. Fleet program details.
Orders placed by 3:00 PM Central Time ship the same business day from Mansfield, TX. Most US destinations receive standard ground in 1–5 business days.