{"id":18996,"date":"2021-06-30T13:28:42","date_gmt":"2021-06-30T11:28:42","guid":{"rendered":"https:\/\/wabco-solutioncentre.com\/?p=18996"},"modified":"2022-07-28T17:38:16","modified_gmt":"2022-07-28T15:38:16","slug":"air-disc-brakes-vs-drum-brakes","status":"publish","type":"post","link":"https:\/\/wabco-solutioncentre.com\/en_US\/air-disc-brakes-vs-drum-brakes\/","title":{"rendered":"Air Disc Brakes vs. Drum Brakes"},"content":{"rendered":"[vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none”][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_spacing=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”]

Stop! Let's Compare Performance<\/h2>\n
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What do you want your heavy truck’s brakes to do? How do you measure their value? You want them to stop. And the more efficiently they stop, the greater their value.<\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none”][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_spacing=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_raw_html]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[\/vc_raw_html][\/vc_column][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_spacing=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”2\/3″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text]OEMs and fleet operators consider the balance between value and performance in making decisions regarding braking systems; and that consideration often focuses on the debate: Air Disc Brakes (ADBs) vs. drum brakes. Let\u2019s look at some information important to that decision making.[\/vc_column_text]

Stopping Distance<\/h2>[image_with_animation image_url=”18997″ animation=”Fade In” hover_animation=”none” alignment=”center” border_radius=”none” box_shadow=”none” image_loading=”default” max_width=”100%” max_width_mobile=”default”][vc_column_text]Drum brakes are the traditional choice of some fleets because of familiarity with that brake system and a perceived cost advantage. ADB system technology, however, has driven greater adoption of ADBs industry-wide because of important advantages throughout the brake lifecycle. But let\u2019s start with \u2013 stopping.<\/p>\n

A study published by the Federal Motor Carrier Safety Administration (FMCSA)1 analyzing the variability of heavy truck braking systems found that the average stopping distance for disc\/disc configuration of brakes (meaning, disc brakes on both the steer axle and drive axles) was shorter than either drum\/drum or disc\/drum brake configurations. Therefore, performance as measured by stopping distance favors ADBs. There are other advantages as well.<\/p>\n

\"\"Drum brake systems are a fully closed design. As drum brake systems heat up, particularly during heavy braking, they are prone to brake fade \u2013 a reduction in performance due to expansion of the drum away from the brake shoe friction. In contrast, ADB technology, which uses a disc that is fitted with a caliper to stop the rotor, virtually eliminates brake fade. Since the rotor is exposed to outside air, it cools quickly, decreasing the tendency to overheat and cause fading.<\/p>\n

As noted in FMCSA study, any brake life cycle varies due to many factors including road conditions, the average load of the vehicle, the terrain traveled \u2013 flat or hilly, and even the driver\u2019s skill level. But in comparable circumstances and conditions like those presented in the study, ADBs offer two important advantages \u2013 shorter stopping distance and more efficient heat transfer in the act of braking.[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none”][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_spacing=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”]

How Does Value Relate to Performance?<\/h2>[vc_column_text]That brings us back to the discussion of how does value relate to performance? In comparing the stopping performance of drum brake systems to ADB technology, the [stopping] performance advantage goes to ADBs.<\/p>\n

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And an even greater advantage is available with ZF ADB technology \u2013 WABCO MAXXUS\u2122 2.0. Its single-piston design makes it the lightest truck ADB on the market. It also offers comparable output force to double-piston technology, better heat management \u2013 which results in longer brake life, less grab and pull, and greater stopping power and a 10% shorter stopping distance than the FMVSS requirement.<\/p>\n

So, stop and consider the question; \u201chow do I define value regarding my heavy truck braking system?\u201d Thoughtful consideration, based on performance and comparative data, makes ADB technology the answer.<\/p>\n

Next:<\/strong>\u00a0ADBs deliver advantages and value throughout the commercial trucking ecosystem \u2013 in safety, overall performance and driver comfort and confidence. Next time we\u2019ll talk about what that can mean to you.<\/em>[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"

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