AirsoftParts Steel Bearings (7 mm)

AirsoftParts 7 mm Steel Bushings With Electroless Nickel Plating

This expert product description was prepared by the ANAREUS.cz expert team. All rights to this unique content are tied to the anareus.cz domain.AirsoftParts 7 mm steel bushings are plain bushings manufactured on precision CNC machines in the Czech Republic and designed for gearboxes with 7mm gear axle bearing holes. The design features relieved contact surfaces between the bushings and gears, intended to reduce the friction area and promote smooth operation of the gear train. The surface is treated with an electroless nickel coating with a hardness of 660–850 HV (58–63 HRC), which increases wear and corrosion resistance while providing a very smooth sliding surface. The bushings intentionally have no lubrication groove, which according to the manufacturer could contribute to wear on the gear axles. These are solid bushings without balls, suitable even for mechanically demanding builds; the manufacturer specifies use with springs up to M170.

Key Features

Technical Specifications

• Type: bushings for AEG gearbox
• Diameter: 7 mm
• Gear axle diameter: 3 mm
• Material: steel
• Manufacturing: CNC machining
• Surface finish: electroless nickel plating
• Surface hardness: 660–850 HV (58–63 HRC)
• Lubrication groove: no
• Compatibility: gearboxes with 7mm bearing seats
• Maximum recommended spring: M170
• Country of manufacture: Czech Republic

Package Contents

• 6× 7 mm steel bushing

Frequently Asked Questions (FAQ)

What Is the Difference Between These Bushings and Ball Bearings?

Bushings have a solid construction without balls or other moving parts. The gear axle rotates directly against the smooth sliding surface of the bushing, providing a mechanically simple design suitable even for heavily stressed builds.

What Is the Purpose of Electroless Nickel Plating?

The nickel coating creates a smooth, hard and corrosion-resistant surface. The manufacturer specifies a hardness of 660–850 HV (58–63 HRC), high wear resistance and good sliding properties.

Which Gearboxes Are the Bushings Compatible With?

They are designed for gearboxes using 7mm bearing seats. Before installation, it is advisable to verify the actual diameter of the holes in the specific gearbox and ensure the bushings are seated correctly.

What Spring Strength Can Be Used With the Bushings?

The manufacturer specifies use with springs up to M170. However, the entire assembly must be appropriately rated for the load – this specification alone does not determine the maximum load capacity of the other gearbox components.