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16. A method for sensing a temperature of a roll assembly for a pellet mill including a roll assembly temperature sensing system, the roll assembly temperature sensing system comprising: a thermal sensor; and the roll assembly rotatably disposed in a rotor assembly, wherein the roll assembly comprises: a roll shaft; a bearing disposed circumferentially around the roll shaft; and a seal disposed between an end of the bearing and the rotor assembly, wherein the rotor assembly comprises an area defining a die cavity adjacent to the seal, wherein the thermal sensor is disposed within a spring-loaded thermowell assembly that is disposed within the die cavity, wherein a distal end of the spring-loaded thermowell assembly is configured to engage the seal, and wherein the thermal sensor is configured to detect a temperature of the seal resulting from heat conducted from the bearing, the method comprising: receiving, by a controller, signals from the thermal sensor disposed in the die cavity in the rotor assembly of the pellet mill, wherein the thermal sensor senses a temperature of the seal in contact with the bearing of the roll assembly; converting the signals to temperature values, comparing the temperature values to a threshold value; and in response to determining that the temperature values exceed the threshold value, generating, by the controller, a notification on a display device, and automatically performing an operation intended to decrease the temperature value.
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