Product Details

Note: Use for Trex 450 Main Blades and Tail Blades Thrust Bearing Kit

High Quality ABEC-3 Thrust bearings for helicopters.

Size 3x8x3.5mm Thrust bearings for Trex blade grips.

If it doesn't specify which ABEC rating, it's likely that's it's ABEC-1. ABEC-3 bearings are much tighter in tolerance than ABEC-1 bearings, thus provide much higher accuracy and smoothness.