Professional castor for commercial or occasional use 3" / 75mm swivel castor with brake This listing is for 4 castors The load rating of 100kg is for each wheel so depending on how many wheels you use the load carrying capacity will increase Each castor has 2 x roller bearings in the centre for maximum strength as well as being able to take a little bit more weight As well as this the roller bearing also allows for less friction to be caused making the trolley or whatever the castors are on easy to move 360 degree rotation on the castor Double ball bearing swivel head Each castor has a push brake mechanism to prevent the wheel from rolling when applied Easy to operate brake, simply push down to apply and push up to release Ideal for a huge variety of uses from DIY to industrial applications Perfect for use on work benches, bookshelves, shopping carts etc... Heavy duty steep plate for strength and durability when attached Solid PVC wheels to prevent punctures and also to make the trolley more rigid and supported when using the castors PVC wheel / castor allows for a smooth movement as well as quiet rolling all whilst protecting the floor it is moving on as well Plastic centre 4 bolt plate fixings for maximum support on whatever trolley you make / fasten them to SPECIFICATIONS • Fixing plate size - 95mm x 65mm • Fixing hole centres - 75mm x 45mm • Fixing hole diameter - 7mm • Diameter of the wheel - 75mm • Width of the wheel - 30mm • Height from the bottom of the wheel to the top of the wheel - 105mm • Maximum load rating 100kg (per wheel) • Pack size - 4pc