Welcome to ACER Racing's new line of Ceramic Ball Bearings made for competition use in high performance RC car engines. These are from our Ceramic Nitride Pro Series line of world champion bearings.

These 7x19x6mm ceramic bearings are sealed on both sides allowing you to remove one seal if preferred for installing in a nitro engine. They feature our diamond polished Silicon Nitride ceramic balls plus a super high speed PEEK inner cage to withstand the heat and stress of your engine. Proprietary internal tolerances have been incorporated into this ceramic bearing as well.

New generation PEEK polymer was chosen for the cages because of its superior combination of strength and flexibility, high operating temperatures, and high chemical and wear resistance. The design of the cage and material used are of paramount importance for the performance of the cage as well as for the operational reliability of the bearing itself.

Bearing cages are mechanically stressed by friction, strain and inertia. They may also be subjected to the chemical action of certain lubricants, lubricant additives or products of their ageing or organic solvents. The relative importance of these considerations can be affected by other operational parameters such as elevated temperatures, shock loads, vibrations or combinations of these and other conditions. The materials from which the bearing components are made determine to a large extent the performance and reliability of the rolling bearings. This why ACER Racing has used PEEK cages for our ceramic engine bearings.

PEEK cages have an excellent combination of strength and elasticity. The good sliding properties of the polymer on lubricated steel surfaces and the smoothness of the cage surfaces in contact with the rolling elements produce the lowest amount of friction so that heat generation and wear in the bearing are at a minimum. The low density of the material means that the inertia of the cage is small contributing to greater speed. The excellent running properties of polymer cages under lubricant starvation conditions permit continued operation of the bearing for some time without risk of seizure and secondary damage.

Our PEEK bearing cages show no signs of aging by temperature and oil additives up to +200 °C (392°F).

Price is for one ceramic engine ball bearing. For a 697 ceramic bearing for non engine use please choose ACER Racing part number C071.

UPDATE: ACER Racer Shasa Lackner received his trophy as "Swiss Junior Champion 2009" in October using ACER Racing ceramic engine bearings in his Max Power engine. Shasa won the main final by nearly 2 laps, and set a new lap record of 14.0 seconds and his ACER Racing ceramic engine bearings worked perfectly for the entire weekend.

8 piece Ceramic 627 Inline Skate Bearings Kit | 627 Bearing Kit

$94.99 $35.99 Save $59.00

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NOTE: These bearings are ABEC7 size 627 2RS bearings for 7mm axles NOT 608 bearings for 8mm axles. The inner diameter is 7mm which some skates use please check your particular skates to see if this is what you need. If not, we also sell 608 ceramic skate bearings which are for standard 8mm axles with an inner diameter of 8mm. For skaters looking to upgrade from their Fafnir 37K 8 ball bearings these are the best choice.

With our National and World Champion reputation in the high performance ball bearing industry we set out to engineer the best ceramic skate bearing at any price. First we started with our tried and tested Ceramic Nitride Pro Series silicon nitride balls (Si3N4). The same super hard balls that gave us the reputation as "the hardest balls in the industry." These balls are matched for consistent concentricity per set. They are polished using diamonds for a super smooth and shiny finish. Their durability is unmatched by any other ball or material in the industry. With a melting temperature of 2552 degrees F and the best modulus of elasticity in the world, these are the best balls period. We use a special synthetic lubrication in our ceramic skate bearings which has an extremely wide service temperature range of from -50 to +120 degrees Celsius with an incredible speed factor of 1 million. We integrate our HSR inner ball bearing cage for durability and strength with superior heat resistance at high RPMs. This insures that your ceramic skate bearings will spin faster, longer. We seal our ACER SK8 ceramic skate bearings with two no contact removable seals which will resist the elements while allowing simple removal for easy cleaning when necessary. These are the best ceramic skate bearings at any price. Whether used in your skateboard, inline skates, roller skates or anywhere a size 627 size 7x22x7mm ball bearing is used, rest assured you will be running the finest ball bearings in the industry.

8X16MM Ceramic Ball Bearing | 688 Bearing | 8x16x5mm Bearing

8X16MM Ceramic Ball Bearing | 688 Bearing | 8x16x5mm Bearing

$12.99 $7.99 Save $5.00

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8x16mm CERAMIC BALL BEARING size 8x16x5mm or 688 size bearing. Made from our World Champion Ceramic Nitride Pro Series Bearing Material. Our 688 bearing is sealed on both sides with our special no contact grey seal to protect against the elements without friction producing seal contact with the bearing elements. Inside our 688 bearing is our unique HSR inner cage which is designed to withstand high RPM, high stress and heat without causing bearing fatigue. The HSR cage houses our diamond polished silicon nitride ceramic balls which have been proven race after race to be the fastest, lightest, smoothest and hardest balls in the industry. Lightly oiled, not greased, with our slippery and fully synthetic SIN oil to keep your bearing running fast and cool.

Price is for 1 bearing.

ACER Racing's 688 ceramic bearing is a high-quality and versatile component that finds extensive use in numerous industrial applications. It belongs to our family of miniature ball bearings and is highly regarded for its exceptional performance and durability.

The "688" designation refers to the bearing's specific size and dimensions. It has an inner diameter of 8 millimeters, an outer diameter of 16 millimeters, and a width of 5 millimeters. This compact size makes it suitable for applications where space is limited, such as small motors, microelectronics, and precision instruments.

One of the standout features of our 688 ceramic bearing is its construction material. It is crafted from advanced ceramic materials silicon nitride which has outstanding characteristics such as high hardness, low density, and excellent corrosion resistance. Consequently, the 688 ceramic bearing exhibits exceptional durability, prolonged lifespan, and reliable performance even under demanding conditions.

The ceramic construction of the 688 bearing offers numerous advantages. First and foremost, it provides the bearing with superior thermal stability, allowing it to withstand high temperatures without compromising its functionality. This makes it suitable for applications involving high-speed rotation or extreme temperature variations.

Furthermore, the 688 ceramic bearing excels in reducing friction and increasing stiffness, resulting in improved efficiency and precision in mechanical systems. The low friction characteristic contributes to reduced energy consumption and enhanced operational efficiency. Moreover, the high stiffness property ensures minimal deformation, thereby enhancing system accuracy and responsiveness.

Additionally, the ceramic material's excellent wear resistance and low maintenance requirements make the 688 bearing a reliable and cost-effective choice. Its exceptional resistance to wear and corrosion ensures prolonged operational lifespan and reduces the need for frequent maintenance and replacements.

ACER Racing's 688 ceramic bearing is a remarkable component with a compact size, advanced ceramic construction, and exceptional performance characteristics. Its versatility, durability, and ability to enhance overall system efficiency make it a favored choice in various industries, including microelectronics, robotics, and precision machinery.