Daywell
Somfy

Round 50 x 1.5 adapter-defined tube

Tube PN not confirmed; 1781148 is nominal 2 in candidate · 50 x 1.5 mm nominal

Daywell fitment unverified. Reference parts below apply to their original motor system; they are not approved Daywell kits.

Material
Not stated for adapter-defined profile
Tube part
Tube PN not confirmed; 1781148 is nominal 2 in candidate
Profile notes
Original motor uses no separate adaptor crown; tube notch 4 x 28 mm. 1781148 exact profile linkage is not established. ID not asserted from arithmetic.

Original-system adapter references

Somfy LT50

Documented by manufacturer

Crown
No adaptor crown; notch4x28mm
Drive
9206088 hard / 9206089 soft
Kit
Not listed

Tube notch is original-system requirement; not a the selected Daywell motor modification instruction.

Source documentation

Somfy 500 Series Databook · page PDF45

Sonesse50

Documented by manufacturer

Crown
No adaptor crown; notch4x28mm
Drive
9016630 hard / 9018455 soft
Kit
Not listed

Original-system fit only. Motor shaft, crown bearing, retention and bracket interface must be checked for the selected Daywell motor.

Source documentation

Somfy 500 Series Databook · page PDF45

Tube source documentation

Somfy 500 Series Databook · page PDF45 / printed43

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