gear coupling

A gear coupling is a heavy-duty mechanical connector that uses a set of internal and external gears to link two shafts together to transfer power.
Here is the simple breakdown of what it does:
• Uses Metal Teeth: Instead of a rubber insert like an elastomeric coupling, a gear coupling has gear teeth that mesh together inside a metal sleeve.
• Handles Big Power: They are built tough and can transmit more torque (rotational force) and run at higher speeds than most other couplings of the same size.
• Allows Small Wiggle Room: The special shape ("crowned") of the gear teeth allows for minor misalignments (like small angles or offsets) between the shafts to prevent damage.
• Needs Grease: To work properly and last a long time, the gears must be lubricated regularly (usually with special grease) to reduce friction and wear.
In short, a gear coupling is a robust, high-power connector used in large industrial machines where you need maximum strength and durability for transmitting massive amounts of power.