# add_belt_constraint_rassembly

## API Definition

```python
def add_belt_constraint_rassembly(assembly: Assembly, constraint_id: str, connector_a: ConnectorRef, connector_b: ConnectorRef, pulley_radius_a: float, pulley_radius_b: float, phase_offset: Optional[float] = None, name: Optional[str] = None) -> Assembly
```

*Source: operations.py*

## Import Surface

- top-level: `from simplecadapi import add_belt_constraint_rassembly`

## Description

Couple two revolute axes as belt-linked pulleys with same-direction rotation.