Wheel bearings are metal balls held by a ring and allow the wheel on your vehicle to spin with as little friction as possible. Over time, bearings can break down due to a lack of lubrication and typical wear and tear. Driving on a bad wheel bearing can be dangerous, and could cause severe damage to your vehicle if you continue to drive on it. Luckily, diagnosing a failing wheel bearing is relatively easy and you can usually determine if there's a problem by listening to your wheels and evaluating any changes in your car's handling.

Singleline Resistance lubrication system

Lubrication systems

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The single point lubricator (SPL) is an automatic lubricator widely used in modern manufacturing operation. Since its introduction more than 50 years ago, the SPL has undergone an extensive improvement process. Original spring type lubricators were replaced by gas charged automatic lubricators, and battery-operated electro- mechanical lubricators are now replacing gas charged lubricators. These new SPLs are far more flexible and reliable than their predecessors. The electro-mechanical lubricator is powered by a lithium battery. An electric motor activates the piston in the container. Each time the piston is moved a preset distance the lubricator dispenses an accurate amount of lubricant. Thus temperature does not affect the discharge from the lubricator. The lubricant discharge from the reservoir can be set on a DIP-switch from1 to 12 months in 12 steps. The lubrication cycle can be interrupted by removing the batteries or set to another discharge period. A much appreciated feature of this lubricator is that the grease reservoir is easily recharged. All that is required is a grease gun or grease pump and a simple refilling kit. The grease should be free from air. When replacing the grease reservoir it should be disposed of as combustible garbage. The lithium type battery can be disposed of along with ordinary batteries.

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To know if the wheel bearings in your car are going bad, listen for snapping, popping, or clicking sounds when you turn. These sounds are all signs that the joint connecting your wheel to your axel is starting to wear out. Notice if the sound coming from your wheel is changing as you change your speed, and notice if you feel your steering wheel vibrating when you drive. If you feel your wheels wobbling while you drive, you should stop driving immediately, since this is a sign of severe bearing damage. To find out how to evaluate your bearing damage, keep reading! Did this summary help you?YesNo

This article was co-authored by Hovig Manouchekian. Hovig Manouchekian is an Auto Repair and Design Specialist and the Manager of Funk Brothers Auto, a family-owned business operated since 1925. With over 30 years of experience in the automotive industry, Hovig specializes in the process of auto repair and maintenance. He is also very knowledgeable in common automotive issues and needs including engine repair, battery replacement, and windshield accessory and maintenance. Hovig's knowledge and hard work have contributed to Funk Brothers Auto winning Angie's List Super Service Award for five consecutive years. There are 7 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 177,285 times.