ROCHE 340091 7x5x1 O-ring for S40130 - Replacement O-ring  [RH-340091]

ROCHE 340091 7x5x1 O-ring S40130
Price:
£1.87
Brand:
ROCHE
Model:
RH-340091
Condition:
Brand New
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Essential Seal for Hobby Servicing

The ROCHE 340091 7x5x1 O-ring is an essential service item for hobbyists who maintain RC models. It forms a reliable seal that helps prevent lubricant loss and reduces friction in moving parts. This small component plays a key role in preserving smooth mechanical action.

Where to Fit This O-ring

Use this O-ring in shock assemblies, small differentials, or compact gearbox sections on 1/10 scale vehicles. It helps limit contamination and keeps lubricants contained, which supports consistent handling and drivetrain performance. Keeping a selection of ROCHE 340091 rings aids quick fixes and shop rebuilds.

Installation and Size Details

Specified at 7x5x1 mm, the ROCHE 340091 is intended for standard sealing grooves found in many hobby parts. Installation is straightforward when the groove and mating surfaces are clean. Confirm dimensions before fitting to ensure an effective seal.

Can ROCHE 340091 be used across different brands of parts?

Yes, when the groove and shaft dimensions match the 7x5x1 profile the O-ring will work across many brands, making it a flexible spare for mixed part builds.

What signs indicate I should replace an O-ring?

Replace O-rings that are cracked, flattened, brittle, or show evidence of fluid leakage, as these conditions compromise the seal and can lead to component wear.

Any tips for fitting without damaging the ring?

Work slowly, use a light lubricant to ease the ring into place, and avoid sharp tools that can nick the material. Ensure even seating to prevent pinching during reassembly.

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