{"id":11107,"date":"2026-02-25T14:28:15","date_gmt":"2026-02-25T13:28:15","guid":{"rendered":"https:\/\/borweld.com\/typical-fits-of-bearing-nodes\/"},"modified":"2026-03-27T10:54:09","modified_gmt":"2026-03-27T09:54:09","slug":"typical-fits-of-bearing-nodes","status":"publish","type":"page","link":"https:\/\/borweld.com\/en\/typical-fits-of-bearing-nodes\/","title":{"rendered":"Typical fits of bearing nodes"},"content":{"rendered":"\n
    \n
  1. Technical knowledge center<\/a><\/li>\n\n\n\n
  2. Principles of selecting bearing fits<\/a><\/li>\n\n\n\n
  3. Hole tolerance fields H7-H11<\/a><\/li>\n\n\n\n
  4. Typical fits of bearing nodes<\/a><\/li>\n\n\n\n
  5. Reconditioning tolerances of holes for pins and bushings<\/a><\/li>\n\n\n\n
  6. DIN 471 \/ DIN 472 circlips <\/a><\/li>\n\n\n\n
  7. Slide bushings – types and selection<\/a><\/li>\n\n\n\n
  8. Installation and removal of bearings – technical principles<\/a><\/li>\n<\/ol>\n\n

    The selection of a bearing node fit depends on the nature of the load, the direction of the load relative to the bearing rings, the speed of rotation and the operating conditions.<\/p>\n\n

    As a basic rule, the ring relative to which the load acts circumferentially should be seated with a push fit. The ring, relative to which the load is constant, can be seated with clearance or a transition fit. <\/p>\n\n

    \n\n

    Table of typical fits<\/h2>\n\n
    Working conditions<\/th>Inner ring (shaft)<\/th>Outer ring (hole)<\/th>Nature of the fit<\/th><\/tr><\/thead>
    Normal load<\/td>k6<\/td>H7<\/td>Transition fit \/ light press fit<\/td><\/tr>
    Heavy loads<\/td>m6<\/td>H7<\/td>Press<\/td><\/tr>
    Very heavy loads \/ strokes<\/td>n6<\/td>H7<\/td>Powerful push<\/td><\/tr>
    Outer ring stationary<\/td>h6<\/td>H7<\/td>Passing with ease<\/td><\/tr>
    Circumferential load on the outer ring<\/td>h6<\/td>M7 \/ N7<\/td>Press in body<\/td><\/tr>
    Fixing system<\/td>k6 \/ m6<\/td>H7<\/td>Axial fixation<\/td><\/tr>
    Floating arrangement<\/td>k6<\/td>H7 (with axial play)<\/td>Expansion compensation<\/td><\/tr><\/tbody><\/table><\/figure>\n\n

    does not replace structural calculations<\/p>\n\n

    does not take into account the thermal expansion of materials with large \u03b1<\/p>\n\n

    does not apply to thin-walled bodies<\/p>\n\n

    \n\n

    Rules of interpretation<\/h2>\n\n

    For a shaft that rotates relative to the load, the inner ring should have a push fit to prevent it from rotating on the settling surface.<\/p>\n\n

    If the load acts circumferentially on the outer ring, the pressure should be applied to the body seat.<\/p>\n\n

    For high dynamic loads, it is recommended to increase the push-in by selecting the m6 or n6 field.<\/p>\n\n

    \n\n

    Effect of temperature and speed<\/h2>\n\n

    High rotational speeds and temperature differences between the shaft and the body can cause a change in the push-in value during operation.<\/p>\n\n

    Too much pressure can lead to a decrease in the radial clearance of the bearing and an increase in operating temperature. In such cases, the internal clearance class (e.g., C3) should be considered. <\/p>\n\n

    \n\n

    Construction Notes<\/h2>\n\n

    The selection of a fit should be analyzed in conjunction with:<\/p>\n\n

      \n
    • Geometric tolerance of settlement surfaces,<\/li>\n\n\n\n
    • roughness,<\/li>\n\n\n\n
    • The coaxiality of the sockets,<\/li>\n\n\n\n
    • The method of assembly and disassembly.<\/li>\n<\/ul>\n\n
      \n\n

      Reference to standards<\/h2>\n\n

      Selection of fits should be done in accordance with:<\/p>\n\n

      ISO 286-2 – dimensional tolerancesISO 492 – bearing accuracyISO 1101 – geometric tolerances<\/p>\n\n

      <\/p>\n","protected":false},"excerpt":{"rendered":"

      The selection of a bearing node fit depends on the nature of the load, the direction of the load relative to the bearing rings, the speed of rotation and the operating conditions. As a basic rule, the ring relative to which the load acts circumferentially should be seated with a push fit. The ring, relative […]<\/p>\n","protected":false},"author":6,"featured_media":10779,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"","ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","footnotes":""},"class_list":["post-11107","page","type-page","status-publish","has-post-thumbnail","hentry","entry","has-media","owp-thumbs-layout-horizontal","owp-btn-normal","owp-tabs-layout-horizontal","has-no-thumbnails","has-product-nav"],"_links":{"self":[{"href":"https:\/\/borweld.com\/en\/wp-json\/wp\/v2\/pages\/11107","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/borweld.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/borweld.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/borweld.com\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/borweld.com\/en\/wp-json\/wp\/v2\/comments?post=11107"}],"version-history":[{"count":2,"href":"https:\/\/borweld.com\/en\/wp-json\/wp\/v2\/pages\/11107\/revisions"}],"predecessor-version":[{"id":11117,"href":"https:\/\/borweld.com\/en\/wp-json\/wp\/v2\/pages\/11107\/revisions\/11117"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/borweld.com\/en\/wp-json\/wp\/v2\/media\/10779"}],"wp:attachment":[{"href":"https:\/\/borweld.com\/en\/wp-json\/wp\/v2\/media?parent=11107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}