A Plummer block is a mechanical component that is used to support a rotating shaft in place. The Plummer block usually has two halves, the bottom one is fixed at a required place. The top half can be removed to install or remove the shaft with bearing.

A Screw jack is a lifting device, which is designed to lift loads. A Screw jack typically has a screw that uses the mechanical advantage of its design to convert the horizontal rotation given by the user into the vertical lift as the screw proceeds along the thread inside the screw jack’s body.

A Lathe tailstock is a part of the Lathe which houses the rear spindle and is used to support the end of a component or to act as a tool post for drilling operations. The tailstock is fixed in the Lathe bed in a way that upon loosening of a nut, the tailstock can be moved freely along the bed way. The tailstock also has an adjustment option which is used to move the spindle back or forth.

A universal joint is used to connect two rotating members, whose axes are inclined to each other. The Power transmission of two rotating members of inclined axes is the main function of a universal joint. This is achieved by designing the joint in a way that when the power is transmitted through one end, the degree of rotational freedom in the coupling allows for the smooth transmission of power between them.

A machine vice is a work-holding device, which as the name suggests, holds the workpiece in place as the machine operates on the work. A machine vice typically has two parallel jaws which move perpendicular to each other by a rotating screw mechanism, and the workpiece is held between them.

A stuffing box is used in places where there are sliding or rotating parts and is operating with fluids, and the prevention of fluid leakage is crucial. The stuffing box is designed in a way that it houses a ‘Gland seal’ which allows for the sliding/rotating movement of the members and preventing fluid leakage as well.

A Crosshead is a part used generally in reciprocating engines to transmit power from the piston to the crankshaft. The short strokes of IC engines provide minimal room for the connecting rod and crankshaft, because of this, if the connecting rod is used directly, the radius of the piston’s power stroke output would be larger than the cylinder itself, so, the crosshead mechanism used to convert the rotational stroke of the piston to sliding motion which in turn is converted into rotational motion by the crankshaft.

A Non-return valve is exactly what it says it is, it allows the flow of fluids in one direction and restricts the flow in the opposite direction, this is achieved by many methods, one common method is the cone and ball method, a ball is placed inside a conical chamber with the shorter end being input direction of whose hole diameter is less than that of the ball and the broader end being receiving direction, the ball is pushed towards the broader end during proper directional flow and during backflow, the ball is pushed towards the short hole which ultimately blocks the hole and prevents the fluid from backflow.

A connecting rod is used to transmit power from the piston to the crankshaft in an IC engine. The connecting rod has two ends which have provisions for installing bearings, one goes to the piston and the other goes to the Crankpin. The connecting rod converts the rotation output of the piston into linear motion which is ultimately converted as rotational motion by the crankshaft.

A piston is a part of all machinery that uses reciprocating mechanisms with piston/cylinder arrangements. In engines, The Piston is the primary power transmitter, which transmits the attained power from combustion firsthand. Pistons are usually fit in the cylinders in a way that ensures minimal fluid leakage.

A crankshaft is a mechanical component that is used to convert reciprocating motion into rotational motion. This is achieved by designing the crankshaft having counterweights that utilizes the resultant torque by the weight to complete a full rotation of the shaft.

A flange coupling is a type of coupling used to connect two rotating members with the same axis. It contains two flanges, each of whose ends are attached to the respective rotating member, the other ends of the Flanges are connected with bolts & nuts, which complete the coupling and capable of power transmission.

A safety valve is a safety device, which is used to safely diffuse excess pressure on the fluid container or transmission lines. Spring in the valve is designed to contract for a certain distance as per the requirement, if the spring is contracted more than the safety limit, the valve is actuated by the spring mechanism and the fluid is dissipated at a manageable pace.