5 Common Types of Gear Tolerances

Gears are the most rugged type of mechanical drive. They transmit power at up to 98% efficiencies and have long service lives. That’s why gears rather than belts or chains are found in automotive transmissions and most heavy-duty machine derives. But gears do cost more, and the higher the tolerances, the more they cost. Here’s a look at the most common gear tolerances.