Sushen Medicamentos Maintenance Fitter Interview Questions, Process, and Tips

The internal diameter of a bearing with the number 6205 is 25 mm.

• The last two digits of the bearing number represent the bore diameter in millimeters

• In this case, the '05' in 6205 indicates a bore diameter of 25 mm

Centrifugal pumps use rotational motion to create flow, while reciprocating pumps use back-and-forth motion.

• Centrifugal pumps use a rotating impeller to create a centrifugal force that pushes the fluid through the pump.

• Reciprocating pumps use a piston or diaphragm that moves back and forth to create pressure and move the fluid.

• Centrifugal pumps are typically used for high flow rate, low pressure applications like water...read more

The number of welding rod used in MS welding process is typically 6013 or 7018.

• Common welding rods used in MS welding are 6013 and 7018.

• 6013 welding rod is used for light to medium penetration on thin metals.

• 7018 welding rod is used for high penetration and strength on thicker metals.

Measure the dimensions of the shaft and housing to determine the size of the missing oil seal.

• Measure the diameter of the shaft where the oil seal sits

• Measure the diameter of the housing where the oil seal fits

• Check the depth of the seal groove in the housing

• Consult equipment manuals or manufacturers for standard sizes

• Use a caliper or micrometer for accurate measurements

z, zz, rs, 2rs are suffixes used in bearing codes to indicate different types of seals or shields.

• z: indicates a metal shield on one side of the bearing

• zz: indicates metal shields on both sides of the bearing

• rs: indicates a rubber seal on one side of the bearing

• 2rs: indicates rubber seals on both sides of the bearing