MOTOR INTERNAL CERAMIC BALL BEARINGS (KCR-20CBM)

These are the highest quality bearings for use in slot cars. Ultra precise with a rating of ABEC-7 Utilizing CERAMIC balls in a stainless race for ultra low friction.

Purchase quantity of two (2) bearings. This bearing size is normally found in slot car motors. Since they are oil lubricated bearings you will have to periodically oil the bearings for long life.

Specifications:

• Bearing NO flange
• Lubrication - oil
• Inside Diameter - 2mm
• Outside Diameter - 5mm
• Overall Width - 2.5mm
• Ball Material – Ceramic (Si3N4)
• Stainless Steel Shields on both sides

Here's a breakdown of what each ABEC rating means:

ABEC 1: These are the least precise bearings and are typically used for low-speed applications where accuracy is not critical.

ABEC 3: These bearings are more precise than ABEC 1 bearings and are a good option for general-purpose applications.

ABEC 5: These are the most common type of bearing used in slot cars. They offer a good balance of precision and affordability.

ABEC 7: These are the most precise bearings available and are the best option for high-performance slot cars.