A system for providing a load on a bearing mounted to a shaft includes an attaching member releasably connectable to the shaft and a press mechanism in fluid communication with a source of fluid and configured to provide a compressive load to the bearing. The press mechanism includes a switch having a base and a piston in communication with the fluid such that an increase in a pressure of the fluid results in the piston extending upwardly from the base and a decrease in the pressure of the fluid results in the piston retracting toward the base. The switch includes a lower proximity sensor and a higher proximity sensor. The piston is configured to extend upwardly from the base past the lower proximity sensor and to trip the higher proximity sensor. The switch is configured to control the increase in the pressure in response to the piston tripping the higher proximity sensor.

A system for providing a load on a bearing mounted to a shaft includes an attaching member releasably connectable to the shaft and a press mechanism in fluid communication with a source of fluid and configured to provide a compressive load to the bearing. The press mechanism includes a switch having a base and a piston in communication with the fluid such that an increase in a pressure of the fluid results in the piston extending upwardly from the base and a decrease in the pressure of the fluid results in the piston retracting toward the base. The switch includes a lower proximity sensor and a higher proximity sensor. The piston is configured to extend upwardly from the base past the lower proximity sensor and to trip the higher proximity sensor. The switch is configured to control the increase in the pressure in response to the piston tripping the higher proximity sensor.

In order to achieve lightness and improve hardness of a brake disk, and minimize weight and improve productivity through an improvement of a coupling structure of a disk plate and a hub, provided is a method of manufacturing a brake disk including a disk plate, which provides a friction surface and is formed with a hole at a center, and a hub, which is coupled to the hole formed at the center of the disk plate, the method including: preparing a disk plate; preparing a hub in the form of a flat plate; positioning the hub in the form of the flat plate on one surface of the disk plate; and bonding the disk plate and the hub by an interference fit.

A system and method for removing and replacing fire-tubes. The system can include a powered system, a fire-tube puller coupled to said powered system. The fire-tube puller has a puller back which is coupled to a plug rest. A plug rest is approximately perpendicular to the puller back, and the fire-tube will rest upon the plug rest when the fire-tube is being removed or installed. The system can also include a stack adjuster which is coupled to the plug rest. The stack adjuster can couple to a stack so as to reposition the stack.

A system and method for removing and replacing fire-tubes. The system can include a powered system, a fire-tube puller coupled to said powered system. The fire-tube puller has a puller back which is coupled to a plug rest. A plug rest is approximately perpendicular to the puller back, and the fire-tube will rest upon the plug rest when the fire-tube is being removed or installed. The system can also include a stack adjuster which is coupled to the plug rest. The stack adjuster can couple to a stack so as to reposition the stack.

A pre-tensioned bearing assembly, including: a first rolling bearing including a first outer ring, first inner ring including a first conical surface, and a plurality of rolling elements radially disposed between the first inner and outer rings; a second rolling bearing including a second outer ring, a second inner ring including a second conical surface, and a plurality of rolling elements radially disposed between the second inner and outer rings; a shaft including a shoulder in contact with the second rolling bearing; a first conically-shaped sleeve in contact with the first conical surface and the second conical surface, and including a cylindrical inner surface; a second conically-shaped sleeve in contact with the cylindrical inner surface; and a shaft nut including an internal thread in cooperation with the shaft, and fixing the first inner ring and the second inner ring axially onto the shaft.

A method of removing cutting bits from a milling work machine includes engaging a cutting bit connected to a rotary drum of the machine with a bit removal tool, actuating the bit removal tool to disconnect the bit from the machine, sensing a plurality of characteristics of removing the bit from the machine, and determining that the bit has been disconnected from the machine based on the sensed characteristics.

A method of removing cutting bits from a milling work machine includes engaging a cutting bit connected to a rotary drum of the machine with a bit removal tool, actuating the bit removal tool to disconnect the bit from the machine, sensing a plurality of characteristics of removing the bit from the machine, and determining that the bit has been disconnected from the machine based on the sensed characteristics.

A hub joint assembly for frictionally connecting a shaft to a connector is provided. The hub joint assembly includes a coupling hub including a collar portion and a flange portion. The collar portion includes a bore having an inner surface that is configured to be positioned adjacent to the outer surface of the shaft. The collar portion further includes an outer surface that may be conical. The flange portion extends from the collar portion and is configured to be coupled with the connector. The hub joint assembly further includes a clamp ring including a bore having an inner surface. The inner surface may be conical and configured to mate with the outer surface of the coupling hub. A passage is defined in the clamp ring and extends from an outer surface of the clamp ring to the inner surface of the clamp ring.

A hub joint assembly for frictionally connecting a shaft to a connector is provided. The hub joint assembly includes a coupling hub including a collar portion and a flange portion. The collar portion includes a bore having an inner surface that is configured to be positioned adjacent to the outer surface of the shaft. The collar portion further includes an outer surface that may be conical. The flange portion extends from the collar portion and is configured to be coupled with the connector. The hub joint assembly further includes a clamp ring including a bore having an inner surface. The inner surface may be conical and configured to mate with the outer surface of the coupling hub. A passage is defined in the clamp ring and extends from an outer surface of the clamp ring to the inner surface of the clamp ring.