Bevel gears can be made with straight teeth, analogous to spur gears, and with the same disadvantage of sudden full contact that is noisy. Spiral teeth are analogous to helical teeth on cylindrical ...

Tim Allen and Kat Dennings are back in a multi-camera comedy with Shifting Gears. The ABC sitcom is the story of an estranged daughter who returns to live with her father after 15 years, seeking a ...