A little cog-traption

Play on Sven's SudokuPad.

Normal sudoku rules apply.
The three brown cages are cogs. Digits inside must increase as they circle around its center in the direction indicated by the arrow, except between the lowest and highest digit. The center cell is not part of the cog and can be any value.
Digits on an arrow sum to the connected circled digit.
Digits separated by an X sum to 10.
Digits separated by a V sum to 5.
Digits separated by a black dot are at a 1:2 ratio (one is twice the value of the other).

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The Puzzle

9x9 sudoku grid, R1C1 is topmost leftmost cell. 1 given on R1C9. Cogs are centered on R3C4 (arrow clockwise), R4C7 (arrow counterclockwise), and R7C6 (arrow clockwise). Sum arrows are R3C4 circled pointing at R2C4 and R2C5; R4C7 circled pointing at R3C7 and R3C6; R7C6 circled pointing at R8C7 and R8C6; R6C2 circled pointing at R5C1 and R4C1; R9C1 circled pointing at R8C2 and R7C2. X between R8C2 and R8C3. V between R8C3 and R9C3; and between R8C8 and R8C9. Black dots between R1C2 and R1C3; between R1C3 and R1C4; between R3C1 and R3C2; between R6C1 and R6C2.

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