How many bearings are there in a car?
Time：19 Jan,2022
<p style="text-align: center;"><img src="/ueditor/php/upload/image/20220119/1642523367628522.png" title="1642523367628522.png" alt="7.png"/></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">This obviously depends on the model! We’ve nevertheless undertaken to give a rough count of the minimum number of <a href="https://www.wswbearings.com/products/catalogue.html" target="_blank" style="color: rgb(0, 112, 192); text-decoration: underline;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 112, 192);"><strong>bearings</strong></span></a> in a car. We counted 36.</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);"><br/></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">Here’s how we came up with that number:</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">10 bearings on the steering column: 8 needle bearings (4 per universal joint) and 2 needle bearings on the column</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">6 <a href="http://www.unim-inc.com/products/Gear-Box-Bearing/2.html" target="_blank" style="color: rgb(0, 112, 192); text-decoration: underline;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 112, 192);"><strong>gearbox bearings</strong></span></a>: 2 on the primary shaft, 2 on the secondary shaft and 2 on the differential</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">6 engine accessory bearings: 2 on the starter, 2 on the alternator, and 2 on the power steering motor</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">4 wheel bearings</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">3 engine distribution bearings: 1 bearing for each of the 2 idler rollers, 1 for the water pump</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">2 bump stops-suspension bearings (MacPherson)</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">2 seat adjustment bearings (roller freewheels for height adjustment)</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">1 bearing-clutch bearing</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">1 engine flywheel pilot bearing</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">1 transmission shaft bearing (intermediate bearing)</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);"><br/></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">This number increases rapidly with certain widespread technologies: 2 bearings are added for the air-conditioning compressor, for example. Regarding shafts, there are 6 units on an entire transmission system (2 main bearings on the longitudinal shaft, 4 bearing in the rear differential). For the engine, 2 bearings are regularly seen at the end of the cam shaft (distribution end).</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);"><br/></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">The sophistication of certain functions tends to drive up the number of bearings. Recent automatic dual-clutch transmissions (DCT) require an additional 3 bearings: 2 on the gearbox’s second primary shaft, and 1 for the double clutch. Certain high-end engines feature one bearing per valve, i.e. 4 per cylinder and thus 48 on a 12-cylinder engine!</span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);"><br/></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0);">The list is not exhaustive: bearings are also sometimes found in surprising locations, such as in Citro?n’s fixed-centre steering wheel.</span></p><p><br/></p>
