Overspeed Governor OX-187
Bi-directional Over speed Governor OX-187 For Machine Roomless Elevator
OX-187 Return Governor
Covered specifications(Rated speed): ≤0.63m/s; 1.0m/s; 1.5-1 .6m/s; 1.75 m/s; 2.0 m/s
Sheave diameter: φ200mm; φ240mm;φ300mm;
Wire rope diameter: φ6mm,φ8mm (Depending on the rope round state)
Pulling force: ≥500N
Tension device: standard OX-200,optional OX-300
Power supply voltage: standard AC220V, optional DC24V(Velocity≤1.0m/s);
Work location: Car side or counterweight side
Upward control: permanent- magnet synchronous traction machine brake、counterweight safety gear、two-way security clamp
Downward control: elevator safety gear
Remote control: operation and electrical switch reset can be tested electrically; mechanical mechanism can reset automatically

Specification:
| G | Sheave diameter | Wire rope diameter | Rated speed | Tension force |
| G1 | ф200mm | ф6mm,ф6.3mm | V≤1.0m/s | ≥500N |
| G2 | ф240mm | ф6mm,ф6.3mm,ф8mm | 1.0m/s<V≤1.75m/s |
| Super switch voltage grade | AC220V / DC24V |
| Switch magnet voltage grade | AC220V /DC24V |
| Action magnet grade | AC220V / DC24V |
