How can I keep a distance between Anchor and Connected Anchor in Hinge Joint 2D?

Hello strangers.

First, Plz understanding my poor English skills :frowning:

I’m making roulette game using “physics 2D”.
When starting roulette game, the roulette is rotated and collision an arrow.

The roulette has six points and The point has both Rigidbody 2D and Circle Collider.
Also The arrow has Rigidbody 2D and Polygon Collider 2D.
And I added Hinge Joint 2D in arrow. (connected rigid body specific axis)

When The roulette rotating, collision the point in roulette and arrow normally. But, The distance between Anchor in Hinge Joint 2D of the arrow and Connected Anchor in Hinge Joint 2D of the arrow is dynamic!
I want to keep a only zero distance.

How can I solved it?

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2667361--188193--2.PNG

I don’t find a solution.
But, adding another object. (the object has collider too and kinematic on)
The object prevent move the arrow.