Featuring the latest racing specifications, the Kyosho Ultima RB5 represents the ultimate in pure 2WD racing buggies. Designed without compromise from the ground up to build the best racing buggy chassis possible. A low center of gravity, restriction of rotating moment, high agility, and ease of control while producing sharp response, are all realized at the highest level.

Chassis - The chassis plate is light and strong, featuring a specially formulated carbon fiber composite for the best balance of performance and durability. Strategic braces molded into the chassis enhance the stiffness without adding any unnecessary weight. Separate front and rear
Transmission - The new transmission features a smaller, more compact housing that keeps the motor as low and close to the transmission as possible, which reduces CG and improves bump handing. The three-gear transmission features an internal ball differential that uses standard 3/32-inch diff balls and 1/16-inch thrust balls. The differential is also externally adjustable, and a dust cover fits over the adjustment holes so the thrust bearing lasts much longer. An injection molded gear cover is included, which better fits the motor plate to minimize dust and debris for longer gear life.
Front Suspension - Longer, straighter and symmetrical suspension arms connect to a narrow front bulkhead. The bumper/skid plate, suspension block, nose plate and front bulkhead all come together to form a very rigid assembly, to which the front suspension arms mount. The standard position of the suspension mount produces 25 degrees of hinge pin angle in the front suspension arms, but simply flipping the suspension mount increases the hinge pin angle to 30 degrees. The added flexibility of having adjustable hinge pin angles means you have more options when it comes to setting up your car. Like the rear arms, a single replacement arm can be used on either side of the car.
Rear Suspension - The rear suspension arms are symmetrical so a single replacement arm can be used on either side of the car, saving money and space inside your pit box because you don't need to carry as many replacement parts. The inside of the arms are attached to the chassis using separate suspension mounts, which will allows anti-squat adjustment. The rear wheel hubs feature three lower hinge-pin holes, which allow modification of the ride height with minimal disturbance of the suspension geometry. Vertical ball studs for the both the inner and out rod ends of the upper link mean the rear suspension geometry can be fine-tuned with shims.

Our Ceramic Ball Bearing kit for the ULTIMA RB5 contains the following bearings and will also work in the ULTIMA RB5 SP

6 - 5x8 mm ball bearings

12 - 5x10 mm ball bearings

2 - 10x15 mm ball bearings

10X19x7MM Ceramic Ball Bearing | 63800 Bearing | 10x19x7mm Ceramic Bearing

$15.99

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10x19x7mm CERAMIC BALL BEARING size 63800. Made from our World Champion Ceramic Nitride Pro Series Bearing Material. This bearing has many uses. Note the width is 7mm as opposed to the 5mm width of a 6800 bearing. ABEC 7 precision with Grade 5 ceramic balls.

Our 63800 ceramic silicon nitride ball bearing is an advanced and specialized component that is designed for high-performance applications in various industries. It is a miniature bearing with outstanding properties and capabilities, making it a sought-after choice for precision instruments, robotics, and other demanding applications.

The "63800" designation indicates the specific size and dimensions of the bearing. It has an inner diameter of 10 millimeters, an outer diameter of 19 millimeters, and a width of 7 millimeters. This compact size makes it suitable for applications where space is limited and precise movement is required.

The construction material of our 63800 ceramic bearing balls is silicon nitride, an advanced ceramic material known for its exceptional properties. Silicon nitride offers several advantages over traditional steel bearings. It has high hardness, low density, and superior corrosion resistance, making it an ideal choice for applications where durability and reliability are critical.

One of the key benefits of our 63800 ceramic bearing is its reduced friction. The smooth and polished surface of the ceramic balls enables the bearing to rotate with minimal resistance. This results in reduced energy loss, improved efficiency, and enhanced overall performance of the machinery or system in which it is used.

The ceramic construction also provides the bearing with excellent thermal stability, allowing it to operate effectively in high-temperature environments. This makes it suitable for applications that involve high-speed rotation or exposure to extreme heat.

Furthermore, the 63800 ceramic bearing exhibits exceptional wear resistance, ensuring prolonged service life and reduced maintenance requirements. The silicon nitride material is highly resistant to wear, minimizing the need for frequent replacements and resulting in cost savings for the user.

In summary, the 63800 ceramic silicon nitride ball bearing is a high-performance component with exceptional properties and capabilities. Its miniature size, advanced ceramic construction, reduced friction, thermal stability, and wear resistance make it a preferred choice in industries that require precise and reliable motion control. Whether it is used in precision instruments, robotics, or other high-performance applications, the 63800 ceramic bearing continues to demonstrate its ability to enhance efficiency, durability, and overall system performance.