Close-coupled pumps are characterised by a common motor and pump shaft or by their motor shaft and pump shaft being rigidly connected in a pump casing. The pump casing is bolted to the drive flange rather than being installed on pump feet.

What is coupled pump?

A pump coupling is the element used to connect the rotating pump shaft to the drive shaft of the motor; enabling the motor to efficiently transmit power to the pump. ... For heavier duty applications, long coupled pumps are more suited.

Does a close-coupled pump have bearings?

Close-coupled pumps do not need couplings, making this option less expensive than its frame mounted counterpart. ... With no bearings in this pump design, the motor bearings must handle the axial and radial loads of the application. This limits the size and power of the motor used.