Good quality good price, did the job well, have used a lot of these, and no problems yet
If you're looking for a hard-wearing castor, these metal castors with poly-bands should meet the bill. There are long needle-roller bearings across the width of the wheel; nylon thrust washers at the ends; a drilled axle with grease nipple; a grease nipple in the wheel; and a grease nipple on the swivel hub. The only downside with the wheels is the lack of specification, so the load-capacity is unknown, although they look to be quite robust. Also, although there's lubrication present, none of the nipples have been greased when you receive the wheel, so it's worth giving each one a few pumps from a grease gun.
