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2. Bushing (electrical) - Wikipedia

   en.wikipedia.org/wiki/Bushing_(electrical)

   In electric power, a bushing is a hollow electrical insulator that allows an electrical conductor to pass safely through a conducting barrier such as the case of a transformer or circuit breaker without making electrical contact with it. Bushings are typically made from porcelain, though other insulating materials are also used.

3. Bushing - Wikipedia

   en.wikipedia.org/wiki/Bushing

   Bushing (bearing), a type of plain bearing; Bushing (electrical), an insulated device that allows a conductor to pass through a grounded conducting barrier; Bushing (isolator), a mechanical device used to reduce vibrational energy transfer between two parts; Drill bushing, a tool used to guide the placement of a hole when drilling in a workpiece

4. GE 25-ton switcher - Wikipedia

   en.wikipedia.org/wiki/GE_25-ton_switcher

   The 25-ton switcher was designed primarily for switching duties (moving railroad cars to and from loading/unloading facilities, as well as making up and breaking down trains), with both low power output and low top speed for a locomotive. While not very capable of hauling mainline trains, these features made it cheaper than most other locomotives.

5. Concentric reducer - Wikipedia

   en.wikipedia.org/wiki/Concentric_reducer

   A copper concentric reducer. A concentric reducer is used to join pipe sections or tube sections on the same axis. [1] The concentric reducer is cone-shaped, and is used when there is a shift in diameter between pipes. [1] For example, when a 1" pipe transitions into a 3/4" pipe and the top or bottom of the pipe doesn't need to remain level. [2]

6. Plain bearing - Wikipedia

   en.wikipedia.org/wiki/Plain_bearing

   A flanged bushing is a sleeve bushing with a flange at one end extending radially outward from the OD. The flange is used to positively locate the bushing when it is installed or to provide a thrust bearing surface. [9] Sleeve bearings of inch dimensions are almost exclusively dimensioned using the SAE numbering system.

7. Drill bushing - Wikipedia

   en.wikipedia.org/wiki/Drill_bushing

   A drill bushing, also known as a jig bushing, [1] is a tool used in metalworking jigs to guide cutting tools, most commonly drill bits. Other tools that are commonly used in a drill bushing include counterbores, countersinks, and reamers. They are designed to guide, position, and support the cutting tool. [2]