RetroArms Shim Set INNOX 0,1mm (30 pcs) – Ø 4 mm

RetroArms INOX 0.1 mm Shims for 4mm Gear Shafts

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.RetroArms INOX shims are designed for shimming gears in AEG gearboxes, including compatible NGRS builds. Correct shimming adjusts the axial play of individual gears and sets their relative position so that they can rotate freely without excessive lateral play. Precise adjustment helps reduce unnecessary friction, noise and mechanical stress on the gear train. This version has a thickness of 0.1 mm and a Ø4 mm hole, so it is intended exclusively for gears with 4mm shafts, such as compatible reinforced RetroArms PandoRA gears. It is not suitable for standard AEG gears with 3mm shafts. The package contains a total of 30 stainless steel shims: 10 pieces with a 6 mm outer diameter and 20 pieces with an 8 mm outer diameter. The two outer diameter sizes give technicians more flexibility to select a suitable shim according to the available space around a particular gear, bearing and gearbox design.

Key Features

Technical Specifications

• Type: Gear shims
• Material: Stainless steel (INOX)
• Thickness: 0.1 mm
• Inner Diameter: 4 mm
• Outer Diameters: 6 mm and 8 mm
• Shim Distribution: 10× Ø6 mm, 20× Ø8 mm
• Compatibility: AEG gears with 4mm shafts, including corresponding NGRS gears
• Example of Compatible Gears: RetroArms PandoRA with 4mm shaft

Package Contents

• 10× INOX 0.1 mm shim – inner Ø4 mm / outer Ø6 mm
• 20× INOX 0.1 mm shim – inner Ø4 mm / outer Ø8 mm

Frequently Asked Questions (FAQ)

Are These Shims Suitable for Standard AEG Gears?

Only if they have a 4 mm diameter shaft. This set has a Ø4 mm inner hole and is intended, for example, for compatible reinforced RetroArms PandoRA gears. For standard gears with 3mm shafts, shims with a smaller inner diameter are required.

Why Does the Set Include Shims With Two Outer Diameters?

The 6 and 8 mm outer diameters allow you to select a more suitable size according to the space around a particular gear, bearing and other gearbox components. The inner hole and thickness remain the same for both versions.

What Are the Benefits of Correct Gear Shimming?

Correct shimming sets the axial play and relative position of the gears. The gears should rotate freely without unnecessary resistance while also avoiding excessive lateral play. Proper shimming therefore helps reduce friction, noise and unnecessary stress on the gear train.

Can 0.1 mm Shims Be Combined With 0.05 mm Shims?

Yes, provided they have the correct inner diameter for a 4mm shaft. Combining different thicknesses allows the final clearance to be fine-tuned more precisely according to the specific gearbox and gears used.