The cylindrical body 182 defines a housing for maintaining the electrical components of the pipeline inspection device 10. In some embodiments, the body 182 is air and/or water tight in order to protect the electrical components. In the illustrated embodiment, the front end 186 of the hub 30 includes a battery housing 202 for receiving a battery 174. The battery 174 is removable from the battery housing 202 of the hub 30. The battery housing 202 includes a cover 206 that can be opened and closed to insert and remove the battery 174, respectively. The cover 206 forms an air and/or water tight seal to protect the battery 174 and other electrical components. The cover 206 is attached to the front end 186 by a hinge 210 and a latch 212. The hub 30 also includes a channel 218 extending through the cylindrical body 182 from the outer wall 194 to the front end 186. When the hub 30 is inserted in the drum 34, the channel 218 receives the cable 14 and helps guide the cable 14 into or out of the drum 34. In addition, the hub 30 may include a holding mechanism configured to hold the camera 18 during storage such that the cable 14 is prevented from spooling out and the camera 18 is prevented from falling into the hub 30.