https://www.mytrailerparts.co.uk/webshop/wheel-bearings/sealed-for-life-bearings/6207-sealed-ball-bearing-id35-od72-w17mm/
6207 Sealed Ball Bearing (ID35, OD72, W17mm)
6207 Sealed Ball Bearing Inside Diameter: 35mmOutside Diameter: 72mmWidth: 17mm
ball bearingsealed