CNC ANTIROT 3 mm Bearings – top-tier, cage-free design
For unparalleled reliability where traditional cage bearings fail, ANTIROT bearings eliminate the thin-sheet cage (< 0.2 mm) that often breaks under high stress. With no cage, these bearings withstand greater loads and deliver consistent smoothness.

Key features

Cage-free construction: no fragile cage to deform or break under strain

17-ball stacking: each bearing uses an inner ring, outer ring, and 17 balls arranged side-by-side, akin to linear bearing tracks

Three-point contact: balls engage inner and outer rings at three points on three faces—two of which are conical—for maximum stability

Modular assembly: drop-in inner rings; outer rings are greased and loaded with balls prior to gearbox installation

Assembly & installation

Apply grease to the inner surfaces of the outer rings.

Stack 17 balls into each outer ring.

Press the inner ring into the loaded outer ring.

Use a magnet on the gearbox exterior during install/disassembly to keep the assembly intact.

Package contents

Parts for six complete bearings (inner and outer rings)

Extra balls to ensure 17 per bearing

User benefits

Superior load capacity with no cage failure risk

Consistent smooth operation and reduced lateral friction

Extended service life under extreme conditions

Warnings
Intended for 3 mm shafts in 8 mm bearing seats of electric softair replicas only. Assemble carefully to prevent ball loss. Keep out of reach of children. Not for use with real firearms. For installation assistance, consult a qualified technician.