What are support rollers?

• A. The toothed wheel that transfers power to tracks.
• B. The free turning wheel which helps maintain track tension.
• C. Smaller, free turning wheels used to keep tension on the upper portion of tank tracks.
• D. The device located on the main gun that allows escaping gases to exit the bore.

Answer: (C)

Track systems rely on a combination of components to keep the belt aligned and tensioned. Support rollers are the small, free-spinning wheels mounted along the upper section of the hull that carry the upper run of the track. Their job is to keep that portion tight and guided so the track returns smoothly and stays in proper contact with the drive sprocket and road wheels. They do not transmit power—that role belongs to the drive sprocket. By supporting and tensioning the upper track, they help reduce sag, wear, and derailment, keeping steering and suspension functioning reliably.