Kartmaster Ceramic Hybrid Low Friction 1 1/4" Axle Bearing

Fits 1 1/4" Axles, 1 1/4" ID, 62mm OD, Sold Individually

Ceramic Hybrid Axle Bearings for your Racing Kart -

These bearings are made with all the top componentry -

#52100 Chrome Steel Races, Si3N4 Ceramic Balls, 

Injection Molded Polyamide Cage, Rubber seals, C3 Clearance and built to P6 Precision

These are SB Style Insert Bearings; they have an inner ring that is flush on one side. 

These bearings feature Silicon Nitride (Si3N4) Ceramic Balls that are non-porous, non-magnetic, non corrosive and lighter than steel.

They're also harder than steel and virtually frictionless ... they will spin faster than steel balls.

Why Ceramic Hybrid Bearings?

Si3N4 Silicon Nitride Balls are of the highest quality available for bearing performance. They have an extremely hard and smooth surface .. over 2x harder than steel and 4x smoother (just 1/4 the friction coefficient of steel) and all at about 1/2 the weight ; much better than steel balls!

Si3N4 Silicon Nitride Balls will not crack or 'micro-weld' like steel balls, they actually are so smooth, they polish the races as they roll, very cool (and smooth)

Si3N4 Silicon Nitride Balls won't corrode or pick up / micro-weld to any particles that enter the bearing. If the races become pitted or damaged by dirt that enters the bearing, the Si3N4 Silicon Nitride Balls will actually polish the races smooth again.

Si3N4 Silicon Nitride Balls reduce friction because they are rounder and smoother than steel balls. Si3N4 Silicon Nitride Balls are much more precise, run at lower temperatures, and vibrate less .. they actually become smoother with use.

Please note: Ceramic Hybrid Bearings require a short break in period to 'settle in' and achieve the full and best operating efficiency.