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Round or hex mount: which blade disc fits?

How to tell whether your robotic mower has a round motor mount with 22 mm hole spacing or a hexagonal motor shaft, and which tuning blade disc fits.

Last updated: 2 October 2026

Two mounts, one disc

Our tuning blade disc comes with two mounts. The disc itself is the same, only the adapter differs:

  • Round mount: for round motor mounts with 22 mm hole spacing, for example Gardena Sileno City, Sileno Life and Smart Sileno. It is fixed with the original screws.
  • Hex mount: for mowers with a hexagonal motor shaft and 22 mm hole spacing, for example Worx Landroid.

How to find out

  1. Switch the mower off and secure it, place it underside up.
  2. Remove the original disc and look at the motor mount: round flange with holes or hexagonal shaft?
  3. Measure the hole spacing, ideally with a caliper.

For Husqvarna Automower, McCulloch and Flymo there is no general model guarantee. Compare the mount with the reference photos and measure the hole spacing before buying.

The easiest way is the compatibility check: choose brand and model, confirm the mount, see the matching disc.

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