Unique Qualities and Properties of Pump Shaft Quality (PSQ) Bars

The stainless steel manufacturer and exporter industries were transformed by the start of stainless steel, which voiced energy and force on heavy technical equipment such as autos, motors, shafts, and pumps. Stainless steel products and services impact every element of human existence and to make these things run accurately, pump shaft quality bars have been manufactured. It is basically a straight, revolving, or swing-around bar that conveys motion, and is even found helpful in applicant improvement by many industries. Let’s dive in and see how and why it can be useful for your industry.

What is Pump Shaft Quality?

Pump Shaft Quality (PSQ) Bars have a yield of 75 KSI (kilopound per square inch) and tensile strength of 100 KSI. In addition to this PSQ bars can readily sustain excessive stresses at high rotational speeds. These bars may be used in a variety of lightweight and thick fluids. When installed in unfavorable locations and situations, Pump Shaft Quality (PSQ) Bars may also handle high-stress forces. Furthermore, these PSQ bars are beneficial in applications requiring great loads and rapid velocity, which result in pressure and stress.


They also need extra caution to avoid unanticipated outcomes such as an accident or a major collision. Pump shaft quality bars manufactured at Vishwa stainless steel have been machined to the highest quality criteria for straightness and diameter, whether they get used at shafts or other applications.

Uses of Pump Shaft Quality Bar (Psq)

Pump Shaft Quality bars are polished shafts used in rotating industries. The treatment and process used on this bar result in a narrower diameter tolerance, which is achieved via wear. These Pump Shaft Quality (PSQ) Bars have outstanding functional and controllable features. These bars operate better and have a lower vibrational capability across the shaft length. As a consequence, these Pump Shaft Quality (PSQ) Bars are more efficient, dependable, stable, and capable of excellent performance.

Unique Qualities, Features and Properties of Pump Shaft Quality (PSQ) Bars:

PSQ bars are processed to a higher grade than normal bars. The following unique factors make Pump Shaft Quality Bar (PSQ) ideal for use in numerous industries: 

Vibration: The vibration on shafts when traversing at extremely high speeds is the primary cause of pump failure in many industries. PSQ bars must be extremely straight in order for the shafts to experience minimal to no vibrations while spinning at high speeds. The vibration tolerance of these Pump shaft quality bars is excellent.


Pump shafts are denoted to have a tremendous capacity for wear and tear in a variety of applications. Heavy loads at fast speeds can put a lot of strain on the material, and accidents during shaft transit can impose a lot of force on the items. Pump shafts are subjected to extreme forces, necessitating stringent standards. Pump shaft quality bars have a tensile strength of 100 KSI and a minimum yield of 75 KSI. Because of their strength, the bars can resist more weight than normal stainless steel bars.


Pump shaft grade steel bar outside diameter tolerances is held to exceedingly tight tolerances. To avoid damage to machinery and components, the shaft must exactly fit the equipment for which it was built.

Uniform Structure:

An impeller is attached to a shaft. The impeller is supported by a shaft made of steel or stainless steel that is sized to sustain it. Shafts must be precisely sized. Increased pump vibration, lower bearing life, the risk of shaft fracture, and overall reduced pump life can all be caused by an undersized shaft. An large shaft, on the other hand, might raise the pump’s cost excessively.

Ultimate Strength and Toughness:

Pump shaft quality bars are well-known for their strength and corrosion resistance since shaft transit unleashes a massive force on the equipment. Pump shafts endure massive forces against it, necessitating the use of high-quality materials. Pump shaft quality bars withstand higher weight than regular stainless steel bars due to their strength.

High Level Of Straightness:

The quality bar is more than 8 times straighter than industry requirements (ASTM A108), with straightness measurements of 0.0015″ T.I.R/FT max. PSQ shafting needs cautious shipping and handling due to its precise straightness and tight diameter tolerance. RGM PSQ is packaged in hardwood boxes to guarantee that each and every client receives straight, round bars.

Diametrical Tolerances:

PSQ bars have extremely tight outside diameter tolerances due to their nature. To avoid harm to both the equipment and the shaft, a shaft must exactly fit the machinery for which it was intended. Because exterior diameter tolerances are so important, all PSQ shafts have the following tolerances:


PSQ bars are constructed of stainless steel and are very ductile, malleable, and alloyable. These mechanical characteristics can be easily customized to fit the pumping apparatus’s requirements. Additionally, these bars have a long operating life and provide consistent accuracy. PSQ bars can be used in both cryogenic and warm conditions.


PSQs manufactured at Vishwa Stainless Pvt. Ltd. include high-quality stainless steel bars within a variety of forms and sizes to meet the needs of the client. They are also resistant to corrosion, which makes them perfect for use in challenging applications.

Applications of Pump Shaft Quality Bar:

Earlier these bars were useful for the establishment of precise shafting in pumps. Firstly, pump shaft quality bars were only applicable in the manufacturing of stainless steel, but as its quality was improved it started benefiting numerous numbers of industries, Pump Shaft Quality Bars (PSQ) are available in customized forms, shapes, sizes, finishing, and lengths. Pump shaft quality tolerance is high due to designing the outline with high precision and durability to work under specific conditions. The premier reason for processing is to deliver optimum results to rotating applicants.

Common applications of Pump Shaft Quality Bar

  • Mining
  • Industrial Pumps
  • Rotating Equipment
  • Mechanical Industry 


Because of its unique qualities and properties, Pump shaft quality bar (PSQ) is highly in demand, and to satisfy each industry’s requirement,  Vishwa stainless steel pump shaft quality bar manufacturing is precisely processed and even adequately protected during the shipping that can assure exact tolerance due to the stress imposed.

Our shafts are packed in a variety of ways, including cardboard tubing and hardwood boxes, to guarantee our clients a pristine-shaped shaft arrival, with this dedicated working process only makes us the leading manufacturers of pump shaft quality bars in India. 

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