[RETRO ARMS] CNC ANTIROT bushings 3mm (reproduction reservation, date to be determined)

Based on the company's CNC Low Profile Bushing 8mm / 3mm
This is a specially shaped 90MnCrV8 tool steel machined bearing with anti-rotation protrusions.
One package contains 6 pieces.
Compatible with all RETRO ARMS gearboxes that have anti-rotation protrusions on the shaft hole.

Since the bearings do not rotate together, it does not damage the gearbox.
It can only be used with gearboxes that have a special bearing hole shape.

For overseas-made gear shafts with negative tolerance (approximately Φ2.95mm).
Cannot be used with Tokyo Marui genuine gears that have a thick shaft diameter.

This bearing is very hard, with a hardness of HRC58-60.
When using gears such as Siegetek Concepts gears with similar hardness,
Always use an extreme pressure lubricant that provides good metal-to-metal lubrication.
(Teflon and silicone lubricants are not recommended.)