Please accept this essay detailing the specifics of ceramic hybrid muffler bearings as my application for membership within the RS Club.
Bearings come in many different types, including ball, cylindrical roller, linear motion, marine, miniature, needle, pillow blocks, slewing ring bearings, spherical, and tapered roller. However, this essay discusses the details of only one type of bearing, the muffler bearing. Even within this narrow category, there are several different options to choose from. Due to spatial constraints (and short attention spans) we will deal with only one type of muffler bearing, the ceramic hybrid muffler bearing.
The properties of any hybrid option usually entails several compromises, but overall you are trying to bring the benefits of each material into play while downplaying their liabilities. As such, ceramic hybrid muffler bearings are an ideal upgrade to any high performance vehicle. Porsche, Ferrari, BMW M cars, and McLaren all use ceramic hybrid muffler bearings as OEM parts.
When choosing a ceramic hybrid muffler bearing for your car there are several questions you need to answer. What is the bore, the width, and the outside diameter you are considering? Generally, the stock muffler bearing is a good place to start. A basic rule of thumb is to use the standard bearing size, multiply its dimensions by 10%, add that amount to the original size, and use the new numbers as your ceramic hybrid muffler bearing size. Other important factors you should know before ordering your new set of muffler bearings is the maximum speed at which your bearing will rotate (you can determine this with the simple equation: q1=(qx+qy)/2+square root of (((qx-qy)/2)^2+cxy^2) where qx=normal x-stress, qy=normal y-stress, and cxy=shear stress). In addition, knowing your static radial load, and dynamic radial load is extremely useful in ensuring proper muffler bearing size and fitment.
Once these questions are answered you can begin determining the actual bearing design. Most would agree the double row deep groove radial is the most effective design for producing extra horsepower. However, there has been some recent success using the one direction thrust angular contact design. Of course, stainless steel races and prelubrication are a given for ceramic hybrid muffler bearings.
Installation of your new ceramic hybrid muffler bearings is as simple as reversing the process of removing your stock muffler bearings. Most cars benefit from an ECU reset after the installation of new muffler bearings. The quickest way to accomplish an ECU reset is by baring the ends of an extension cord (the heavier the gauge the better) and touching them to the battery terminal posts of your car while the extension cord is plugged into a power outlet. If possible, use a 220 watt outlet.
In general, ceramic hybrid muffler bearings, if fitted and installed properly, are good for a 27.8~36.2% horsepower gain throughout the engines operating range. The truly remarkable figures involve the torque numbers. A 57.6~62.3% gain can be found on most vehicles. Ceramic hybrid muffler bearings are a ‘must have' option on any performance vehicle.
Bearings come in many different types, including ball, cylindrical roller, linear motion, marine, miniature, needle, pillow blocks, slewing ring bearings, spherical, and tapered roller. However, this essay discusses the details of only one type of bearing, the muffler bearing. Even within this narrow category, there are several different options to choose from. Due to spatial constraints (and short attention spans) we will deal with only one type of muffler bearing, the ceramic hybrid muffler bearing.
The properties of any hybrid option usually entails several compromises, but overall you are trying to bring the benefits of each material into play while downplaying their liabilities. As such, ceramic hybrid muffler bearings are an ideal upgrade to any high performance vehicle. Porsche, Ferrari, BMW M cars, and McLaren all use ceramic hybrid muffler bearings as OEM parts.
When choosing a ceramic hybrid muffler bearing for your car there are several questions you need to answer. What is the bore, the width, and the outside diameter you are considering? Generally, the stock muffler bearing is a good place to start. A basic rule of thumb is to use the standard bearing size, multiply its dimensions by 10%, add that amount to the original size, and use the new numbers as your ceramic hybrid muffler bearing size. Other important factors you should know before ordering your new set of muffler bearings is the maximum speed at which your bearing will rotate (you can determine this with the simple equation: q1=(qx+qy)/2+square root of (((qx-qy)/2)^2+cxy^2) where qx=normal x-stress, qy=normal y-stress, and cxy=shear stress). In addition, knowing your static radial load, and dynamic radial load is extremely useful in ensuring proper muffler bearing size and fitment.
Once these questions are answered you can begin determining the actual bearing design. Most would agree the double row deep groove radial is the most effective design for producing extra horsepower. However, there has been some recent success using the one direction thrust angular contact design. Of course, stainless steel races and prelubrication are a given for ceramic hybrid muffler bearings.
Installation of your new ceramic hybrid muffler bearings is as simple as reversing the process of removing your stock muffler bearings. Most cars benefit from an ECU reset after the installation of new muffler bearings. The quickest way to accomplish an ECU reset is by baring the ends of an extension cord (the heavier the gauge the better) and touching them to the battery terminal posts of your car while the extension cord is plugged into a power outlet. If possible, use a 220 watt outlet.
In general, ceramic hybrid muffler bearings, if fitted and installed properly, are good for a 27.8~36.2% horsepower gain throughout the engines operating range. The truly remarkable figures involve the torque numbers. A 57.6~62.3% gain can be found on most vehicles. Ceramic hybrid muffler bearings are a ‘must have' option on any performance vehicle.
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