Power take-off with bell housing cooling system

A power take-off, comprising:

• a bell housing disposed about an axis and configured for coupling to a housing of a driving device at a first axial end and to a housing of a driven device at a second axial end, the bell housing defining an air inlet port and an air outlet port between the first and second axial ends;
• a clutch disposed within the bell housing and configured to transfer torque from an input member coupled to the driving device to an output member coupled to the driven device;
• and,
• a fan configured for rotation with the input member to draw air into the bell housing through the air inlet port, move air through the bell housing from the air inlet port to the air outlet port in a substantially radial direction across the clutch and exhaust air from the bell housing through the air outlet port
• further comprising a diffuser coupled to the bell housing, the diffuser defining a plurality of outlet passages in fluid communication with the air outlet port in the bell housing.

A power take-off, comprising:

• a bell housing disposed about an axis and configured for coupling to a housing of a driving device at a first axial end and to a housing of a driven device at a second axial end, the bell housing defining an air inlet port and an air outlet port between the first and second axial ends;
• an electromagnetic clutch disposed within the bell housing and configured to transfer torque from an input member coupled to the driving device to an output member coupled to the driven device;
• an electromagnetic brake disposed within the bell housing and configured to apply a braking torque to the output member;
• and,
• a fan configured for rotation with the input member to draw air into the bell housing through the air inlet port, move air through the bell housing from the air inlet port to the air outlet port in a substantially radial direction across the electromagnetic clutch and the electromagnetic brake and exhaust air from the bell housing through the air outlet port.