cable anchor Turnbuckle cable anchor cable revolves with shaft on sliding keys & ways slip ways & keys key ways & keys does not revolve with shaft. does not revolve with shaft does not revolve with shaft Thrust spring ball Bearings This Thrust box cannot revolve it is shown bolted to floor but can slide back and ahead with thrust. cable anchor Turnbuckle cable anchor cable Turnbuckle drawing # 7 of a wand floor