3D Printed Roborock FlexiArm Arc Side Brush Adapter S5 S6 S7 S8 Hex Axle Upgrade

Adapter to fit newer FlexiArm Arc anti-tangle side brushes onto older Roborock models with hexagonal axles

Part Details

• Part Name: FlexiArm Arc Side Brush Adapter
• Material: PETG
• Color: Black
• Quantity: 1 adapter
• Hardware required: 1x M3x14 flathead screw (not included)
• Side brush required: Roborock FlexiArm Arc side brush (sold separately)
• What This Adapter Does
• Roborock's newer FlexiArm Arc side brush features an anti-tangle arm design that flexes over hair and debris instead of wrapping it — significantly reducing maintenance. However, the Arc brush uses a round axle mount that is not compatible with the hexagonal axles found on older Roborock models. This adapter bridges the gap, letting you install the upgraded Arc brush onto your existing vacuum without buying a new machine. Tested and confirmed on S7 MaxV and Qrevo MaxV.

Compatible Models

• Fits all older Roborock models with hexagonal brush axles, including:
• Roborock S5, S5 Max
• Roborock S6, S6 MaxV, S6 Pure
• Roborock S7, S7 Max, S7 MaxV, S7 MaxV Ultra
• Roborock S8, S8 Pro Ultra
• Roborock Q5, Q7, Q7 Max
• Roborock Qrevo MaxV
• ⚠ Not needed on:
• Roborock models that already include FlexiArm Arc brushes natively (Qrevo Curv, S8 MaxV Ultra, and other recent flagship models).
• Cross-Reference OEM Part Numbers
• Roborock FlexiArm Arc side brush adapter — hexagonal axle (no published OEM part number)
• Roborock, FlexiArm, and Arc are trademarks of Roborock Technology Co., Ltd. Model names S5, S6, S7, S8, Q5, Q7, and Qrevo are product designations of Roborock Technology Co., Ltd. These names are used solely for compatibility reference. PartsFindr is not affiliated with, endorsed by, or sponsored by Roborock Technology Co., Ltd.