{"id":291,"date":"2021-03-19T18:18:50","date_gmt":"2021-03-19T18:18:50","guid":{"rendered":"https:\/\/www.alphabeta.me.uk\/blog\/?p=291"},"modified":"2021-03-20T14:19:09","modified_gmt":"2021-03-20T14:19:09","slug":"yokes-and-head-race-bearings","status":"publish","type":"post","link":"https:\/\/www.alphabeta.me.uk\/blog\/index.php\/2021\/03\/19\/yokes-and-head-race-bearings\/","title":{"rendered":"Yokes and Head race bearings"},"content":{"rendered":"\n<p>These are the bearings I have used<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-1 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2401-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2401-scaled.jpg\" alt=\"\" data-id=\"318\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2401-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2401\/\" class=\"wp-image-318\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2401-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2401-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>The second hand bottom yoke I had, arrived with the bottom race still attached.<br>Removing it was as simple as tapping it with a hammer and drift.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2397-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2397-scaled.jpg\" alt=\"\" data-id=\"304\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2397-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2397\/\" class=\"wp-image-304\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2397-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2397-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2398-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2398-scaled.jpg\" alt=\"\" data-id=\"305\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2398-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2398\/\" class=\"wp-image-305\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2398-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2398-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2399-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2399-scaled.jpg\" alt=\"\" data-id=\"306\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2399-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2399\/\" class=\"wp-image-306\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2399-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2399-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2400-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2400-scaled.jpg\" alt=\"\" data-id=\"317\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2400-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2400\/\" class=\"wp-image-317\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2400-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2400-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>The original bike doesn&#8217;t come with the little gold coloured dust seals, so they don&#8217;t appear in the Haynes manual.<br>It didn&#8217;t take long to figure out where they go, and I visualised it by putting the parts onto the stem in the right order.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2401-scaled.jpg\" alt=\"\" data-id=\"318\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2401-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2401\/\" class=\"wp-image-318\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2401-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2401-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2403-scaled.jpg\" alt=\"\" data-id=\"319\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2403-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2403\/\" class=\"wp-image-319\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2403-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2403-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>In an ideal world, I&#8217;d have a metal tube of the correct diameter to go over the stem, and hammer the bottom taper race into place&#8230; but this is not an ideal world.<br>CAREFUL tapping with a drift saw the bearing driven into place, checked by seeing if I could insert a feeler gauge under it.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2414-scaled.jpg\" alt=\"\" data-id=\"326\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2414-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2414\/\" class=\"wp-image-326\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2414-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2414-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2415-scaled.jpg\" alt=\"\" data-id=\"322\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2415-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2415\/\" class=\"wp-image-322\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2415-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2415-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure><\/li><\/ul><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Frame<\/h2>\n\n\n\n<p>Ideally, I&#8217;d use a press to insert the bearing faces into the frame, but in the absence of such a thing, I used the rear wheel spindle, some old ball races, which I ground a fraction off so they wouldn&#8217;t get stuck in the seats, and a selection of spacers and washers. Using this Heath Robinson contraption, I was able to pull the bearing face into its seat in the bottom of the frame.<\/p>\n\n\n\n<p>It didn&#8217;t quite seat, possibly as a result of my weakened aged arms, or maybe I was just overcautious with tightening the nut.<br>It was an easy job to finish it off with a hammer and drift, now that i had the slightly undersized old bearing races to use as something to hammer on.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-5 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2405-scaled.jpg\" alt=\"\" data-id=\"321\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2405-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2405\/\" class=\"wp-image-321\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2405-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2405-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2404-scaled.jpg\" alt=\"\" data-id=\"320\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2404-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2404\/\" class=\"wp-image-320\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2404-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2404-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2406-scaled.jpg\" alt=\"\" data-id=\"324\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2406-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2406\/\" class=\"wp-image-324\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2406-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2406-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" src=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2418-scaled.jpg\" alt=\"\" data-id=\"327\" data-full-url=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2418-scaled.jpg\" data-link=\"https:\/\/www.alphabeta.me.uk\/blog\/img_2418\/\" class=\"wp-image-327\" srcset=\"https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2418-scaled.jpg 1920w, https:\/\/www.alphabeta.me.uk\/blog\/wp-content\/uploads\/2021\/03\/IMG_2418-225x300.jpg 225w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>These are the bearings I have used The second hand bottom yoke I had, arrived with the bottom race still&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.alphabeta.me.uk\/blog\/index.php\/wp-json\/wp\/v2\/posts\/291"}],"collection":[{"href":"https:\/\/www.alphabeta.me.uk\/blog\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alphabeta.me.uk\/blog\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alphabeta.me.uk\/blog\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alphabeta.me.uk\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=291"}],"version-history":[{"count":4,"href":"https:\/\/www.alphabeta.me.uk\/blog\/index.php\/wp-json\/wp\/v2\/posts\/291\/revisions"}],"predecessor-version":[{"id":332,"href":"https:\/\/www.alphabeta.me.uk\/blog\/index.php\/wp-json\/wp\/v2\/posts\/291\/revisions\/332"}],"wp:attachment":[{"href":"https:\/\/www.alphabeta.me.uk\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alphabeta.me.uk\/blog\/index.php\/wp-json\/wp\/v2\/categories?post=291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alphabeta.me.uk\/blog\/index.php\/wp-json\/wp\/v2\/tags?post=291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}