Bi-directional Overspeed Governor In fulfillment of the EN81 and GB7588-2003Work in the elevator car and/or counterweight side.In case of car or the counterweight overspeed during up or down travel, the elevator drive unit will be stopped by the electric safety devices. The overspeed governor will engage the safety gear of the car or the counterweight by the overspeed governor rope.GOL provides two product types with and without remote control device.Three types with different pulley size: GOL 200 (200mm), GOL250 (250mm), GOL300(300mm)