Our engine ball bearings are custom made for r/c engines. Although some sizes are available from general bearing stores but they are made for general purposes and outdoor temperature.

SPECIFICATIONS

Model : 3171-12

Ring Material : Bearing steel

ABEC Grade : 5

Balls : Grade 10 steel balls

Number of Balls : 12

Cage : PA66 nylon

Shield Type : Open

Inner Diameter (ID) : 12mm

Outer Diameter (OD) : 21mm

Height of Inner and Outer Rings (H) : Both at 5mm

Lubrication : Oil

Includes 1pc of ball bearing per pack, using aftermarket parts is always at your own risk.