Does anyone out there know of a source of proper F8-16M ball thrust bearings?

<p style="text-align: center;"><img src="/ueditor/php/upload/image/20220919/1663571721669101.png" title="1663571721669101.png" alt="2.png"/></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">Does anyone out there know of a source of proper (not too expensive) F8-16M (8 – 16 x 5mm) ball thrust bearings?</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><br/></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">By ‘proper’, I mean that both end ‘washers’ have ball grooves in, and the washers are not identical:</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">one washer’s central hole fits the shaft snugly, while its outer diameter is slack in the bore, while</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">the other washer is slack around the shaft, while its outer diameter fits the bore snugly</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><br/></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">This kind of 8mm hole, 16mm diameter, 5mm thick bearing (see&nbsp;photo) can be found cheaply from many sources and the one I have bought are made remarkably well – they can carry large axial load smoothly – but every one I have has a pair of identical washers (with 16.0mm outer diameters and ~8.3mm holes) that both want to grip the bore and both slop-around on the shaft – and therefor confer no radial location.</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><br/></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">Oddly, when I buy F8-19M ((8 – 19 x 7mm) or F8-22M&nbsp;<a href="https://www.vistabearing.net/products/Thrust-Bearing/968.html" target="_blank" style="color: rgb(0, 112, 192); text-decoration: underline;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; color: rgb(0, 112, 192);"><strong>thrust bearings</strong></span></a>, made to a similar price and arriving with similar quality, I get proper different washers which go on to locate the shaft radially as well as resisting thrust – so far, at least.</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><br/></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">BTW, some similar-sized thrust bearings have flat washers – with no grooves – and therefor have no radial location capability either, and roller-type thrust bearings at this price also have flat washers and no radial location.</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><br/></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">The F8-22M has the same 8 – 19 x 7mm dimensions as the classic ‘608’ radial skate bearing, so beloved of home constructors. The ones I bought had the same sized ball ring as the F8-19M types, just with wider washers, making me wonder if F8-22M is a made-up thrust bearing to match the 608.</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><br/></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">Having radial and thrust bearings in the same size allows a fully-located bearing for not-too-critical applications to be made from three cheap bearings rather than a pair of expensive <a href="https://www.vistabearing.net/products/Angular-Contact-Ball-Bearing/908.html" target="_blank" style="color: rgb(0, 112, 192); text-decoration: underline;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; color: rgb(0, 112, 192);"><strong>angular-contact bearings</strong></span></a> or a pair of expensive <a href="http://www.dacbearing.com/products/Tapered-Roller-Bearing/155.html" target="_blank" style="color: rgb(0, 112, 192); text-decoration: underline;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; color: rgb(0, 112, 192);"><strong>taper roller bearings</strong></span></a>.</span></p><p><br/></p>