When the pin boots are no longer effective in keeping out the harmful material, the pins might seize.These pins are lubricated, and they enable for perfect alignment of the brake caliper to the brake rotor while also allowing for the mobility required under typical driving conditions.The caliper body (seen in yellow in these photographs), which must be able to “float” in order to allow for both the application of both brake pads and the ability to release the brakes when the traffic signal changes to green. The braking rotor is secured to the wheel via bolts. The most important components are referred to as brake pads, calipers, rotors, and discs. But, exactly, what is this thing? Disc brakes are now standard equipment on all automobiles. The “mystery part” that we displayed was a brake caliper sliding pin boot, which you can see below.
With this component, we played a game of “What’s That Wednesday” – it turns out to be a brake caliper sliding pin boot! We had such a positive response to our “What’s That Wednesday” social media post that we decided to elaborate a little more on it. The tightness of the bolt IS important, but not as important as the strength of the bolt to resist the shear forces. Caliper bolts are loaded in SHEAR, which means a force they experience is trying to cut them off as if they were being decapitated. But, the product you use has to be designed specifically for brakes because of the excessive heat, you can’t use normal grease because normal grease will melt and go away. Now the thing here is that you should be checking your brakes and lubricating all this stuff about every 12-15 thousand miles or once a year. How often should you grease caliper pins? These pins are greased and allow for proper alignment of the caliper to the brake rotor and still allow for the movement needed under normal driving. The floating section is bolted to two pins called slide pins (lavender color in the picture). A seized brake caliper or caliper sliders can cause the vehicle to pull to one side or the other while braking. Here’s how you can tell if your brake caliper has gone bad: How do I know if my caliper slide pin is bad? Over time, the slide pins lose their lubrication and don’t slide the calipers so well. You may be wondering what brake calipers are! Brake calipers house the brake pads and, using brackets, pistons and caliper slide pins, help push the pads into the brake rotors when you apply the brakes. You have to pull/unbolt the caliper to see them. Sorry, no pics at the moment but if you remove one of the front wheels it will make sense. Typically, you lube the slide pins when you do the brakes. The slide pins are behind the rubber boots. If you remove the wheel and look at the brakes, the caliper bolts into the slide pins.
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