Counterbalance Spring
AssemblyThe helical torsion spring inside the barrel that stores energy to offset the curtain weight, so the operator (or a person, in a power cut) only has to overcome friction rather than lift the full curtain mass. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Counterbalance Spring
3 top-level lines as of r118611| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Coil Spring | coil-spring | 1× | 1 | · | part |
| 2 | Spring Shaft | ocg-spring-shaft | 1× | 1 | · | part |
| 3 | Spring Anchor Plug | ocg-spring-anchor | 2× | 2 | · | part |