The Ohrangers (オーレンジャー Ōrenjā?) are the group of five members of the U.A.O.H.. Their special team attack is Chōriki Dynamite Attack (超力ダイナマイトアタック Chōriki Dainamaito Atakku?), where the Ohrangers perform multiple mid-air flips and change into an energy ball that destroys Machine Beasts. Their surname bears the number of corners (or in Momo and Juri case a circle which has no corners and the = was just two lines) of their visor's shape, except for Goro's whose surname reflects the shape of his visor (which is a star). Together, they fought the Machine Empire Baranoia.
Carranger vs. Ohranger
The Ohrangers would later return to team-up with the Carrangers against the last of the Machine Beasts, Bara Mobile, and Bowzock Gorotsuki SS Sutatanzo. Gekisou Sentai Carranger vs. Ohranger
Years later, the Space Empire Zangyack invaded Earth. This threat was so great that all of the first 34 Super Sentai, including the Ohrangers, were needed to oppose them. The 34 Sentai put up a valiant fight against the ground forces, but when the Zangyack fleet itself attacked them, Akarenger told everyone to combine their powers and save the Earth. This destroyed the Zangyack fleet and resulted in the loss of their powers, which resurfaced as Ranger Keys, that were dispersed throughout the universe.
The keys were collected by AkaRed, and later utilized by the 35th Super Sentai, the Gokaigers, a group of five people from different planets who came to Earth in search of the Greatest Treasure in the Universe. Ep. 1: The Space Pirates Appear After Basco ta Jolokia stole the greater powers of Changeman, Flashman, and Maskman. Goro made a transaction with Basco: their Greater Power for information on the location of the Zangyack Flagship, Gigant Horse. However, the trade was a ruse as Goro wanted to take back the stolen Greater Powers, which he failed in doing. He instructed Momo to give the Gokaigers their Greater Power if the worst should happen, but instead the Gokaigers came to save him and defeat Basco. However, the Gokaigers were soon overwhelmed by Basco's true form and all but Marvelous lay unconscious with Goro and Momo rushing to their aid. Ep. 31: Crash!! Secret Operations After getting them back on their feet, Goro tells the Gokaigers if they needed to combine their powers, to use the Greater Power of the OhRangers which in turn inspired Don Dogoier to use their Greater Power to complete the GokaiGalleon Buster. Ep. 32: One Power
After the Gokaigers finally defeated Zangyack, the Gokaigers returned the Ranger Keys before they left Earth to find the second Greatest Treasure in the Universe. It is assumed the Ohrangers have their powers once more. Final Ep.: Farewell Space Pirates
Super Hero Taisen
The five-man Ohranger team, among the majority of the Super Sentai heroes, were caught up in the "Super Hero Taisen" incident. They were presumably sent to the dimensional riftIcon-crosswiki, under the pretense of being defeated, by Kamen Rider Decade while he was apparently hunting the Sentai teams. When his and Captain Marvelous' ruse was revealed, the Ohrangers appeared with the other Super Sentai through the dimensional wallIcon-crosswiki, they then fought alongside all the other Sentai teams and Kamen RidersIcon-crosswiki against the alliance of Dai-ShockerIcon-crosswiki and Dai-Zangyack. Kamen Rider × Super Sentai: Super Hero Taisen