Precision Ground Bar Chicago for Steel Bar Stock and Centerless Grinding Services

High-quality precision-ground steel bars since 1970, tight tolerances, and nationwide shipping.

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Contact info

We Take Pride In Providing High-Quality Steel Bars Since 1970.

Precision Ground Bars
8150 W 111th St Ste 14, Palos Hills, IL 60465

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[Welcome]

Precision Ground Bar Stock Serving Industrial Manufacturers Since 1970

Precision Ground Bars is a trusted precision ground bar Chicago supplier. We have served aerospace, automotive, medical, and industrial manufacturers since 1970. We supply precision-ground bar stock and centerless grinding services that shops depend on for consistent, tight-tolerance bars across every grade we stock.

Our facility in Chicago, IL carries stainless steel, alloy steel, carbon steel bar, aluminum round bar, nickel alloys, titanium, brass, copper, and bronze. Every grade is available in a wide range of sizes and lengths. We keep your production moving on every order.

[Industries]

Centerless Grinding Services Chicago for These Operations and More

We offer centerless grinding services Chicago manufacturers across multiple industries depend on for tight tolerance bar stock delivered ready for production.

Bearing Shaft Quality

Pump Shaft Quality Bar

We supply pump shaft quality bars for pump, motor, and fluid power applications. Every bar is ground to precise diameter tolerances and strict straightness requirements. Tensile strength holds at 100 KSI minimum, and yield strength at 75 KSI minimum on every order.

Grinding Services

Medical Stainless Steel Bar

We supply medical stainless steel bar grades, including 304, 316, 317, and 2205 duplex. These grades serve surgical instruments, dental implants, and biomedical devices. Every bar is ground to the precise tolerances and smooth finishes that medical machining demands.

Alloy Steel Bar Supplier

Alloy steel bar grades we carry include 4130, 4140/4142, 41L42, 8620, and 86L20. These grades serve aerospace, automotive, and high-load industrial applications. High strength, hardenability, and wear resistance make them the right fit where performance under load matters most.

Round Bar

Carbon Steel Bar Stock

Carbon steel bar stock grades, including 1018, 1045, 1117, 1144, 1215, 12L14, and 11L17, are available ground and ready to ship. Carbon steel is cost-effective and machines consistently. It's a practical option for general manufacturing and screw machine applications.

A286 Round Bar

Automotive Steel Bars

We supply alloy steel and aluminum for automotive applications across car manufacturing, heavy-duty trucks, and racing vehicles. These grades cover engine blocks, gears, axles, and other precision components. Lightweight and high strength make them the right choice for automotive production.

[Why Us]

Reasons to Buy Stainless Steel Round Bar from a Trusted Ground Bar Supplier

Precision-ground bar stock is ground to a consistent size and shape. That makes it easier to use across aerospace, automotive, industrial, and medical applications. As a trusted ground bar supplier since 1970, we deliver stainless steel round bar, carbon steel bar, alloy steel, and specialty grades that manufacturers depend on.

Increased Load Capacity

Reduced Weight

Increased Strength

Increased Fatigue Life

INDUSTRIES WE SERVEPRODUCTSSERVICESSOME OF THE MATERIALS WE PROCESS AND SUPPLY
Aerospace ProductsAccuracy StockBar Chamfering4101117
Automobile PartsAero Space MetalsBar Grinding4201144
Electronic ComponentsAir Craft QualityBar Grinding & Polishing4301018
Fabricated Metal ManufacturingAlloy Round BarsBar Press Straightening4551045
Fluid Power Pump and Motor ManufacturingAluminum Steel BarsBar Stock Cutting13-8114 Stressproof
Hardware & Fastener ManufacturingBearing Shaft Quality BarsBar Straightening15-5 PH1215
Machine Tools and RepairsBrass Round BarsCenterless Grinding17-4 PH12L14
Machinery ManufacturingChrome Plated BarsChrome Plating303 Stainless SteelFatigueproof
Medical Equipment and SuppliesCold Finish BarsCustom Packaging304/304L2011 T3
Medical Service CentersCopper AlloysGrinding Thin Wall tubing316/316L2024
Screw Machine ShopsHeat Treated BarsGround Steel4167075
Bearing Manufacturers CompanyInconel BarsPrecision Bar Grinding4404130
Bearing Components ManufacturersMedical Grades barsRound Precision MetalsDuplex4340
Swiss Machines PartsNickel Alloy BarsOD GrindingInconel-6258620
Medical Grade Stainless Steel ManufacturerPrecision Ground Bar StockRoll StraighteningInconel-X7504140/4142
Air Cylinder ManufacturersPump Shaft QualitySteel DeliveryMonel-40041L42
Hydraulic Cylinder ManufacturersStainless Steel BarsPrecision Centerless GrindingNitronic-6086L20
Dental Implants Manufacturing CompaniesStainless Steel TubePrecision Straightening145-Tellurium CopperA286
Steel MillsTitanium – Exotic AlloysCenterless Grinding Services360-Brass11L17
Service CentersTubing ProductsOD Grinding642-Almu-Bronze2024 T351
Chrome Plating HousesTurned Ground & PolishedTube Centerless GrindingCopper Alloy 1106061 T6511
[Uses]​

Pump Shaft Quality Bar and Precision Ground Round Bar Uses​

Precision-ground round bar is widely used in the manufacture of gears, bearings, ball bearings, and machine screws. It serves industrial applications across automotive, aerospace, and fabricated metal manufacturing. We stock stainless steel grades 304, 316, 317, and 2205 duplex for surgical instruments, dental implants, and biomedical devices where sterilization compatibility and corrosion resistance are non-negotiable.

Tool steel bar stock grades, including O1, A2, D2, and M2, serve cutting tools, dies, and molds. Hardness and wear resistance determine performance in every tooling application. Pump shaft quality bar grades are ground to tensile strength of 100 KSI minimum and yield strength of 75 KSI minimum, so your pump shafts run true on every production run.

[Products]

Ground Bar Machining for All Major Grades and Materials

Precision Ground Bars delivers ground bar machining across stainless steel grades 303, 304/304L, 316/316L, 410, 416, 420, 430, 440, 455, 13-8, 15-5 PH, 17-4 PH, Nitronic 60, Duplex, and A286. Carbon steel bar grades include 1018, 1045, 1117, 1144, 1144 Stressproof, 1215, 12L14, and 11L17.

Alloy steel grades include 4130, 4140/4142, 41L42, 8620, and 86L20. We also stock Inconel 625, Monel 400, 360 brass, 642 bronze, copper alloy 110, and 145 tellurium copper. Every grade moves through our centerless grinding and bar processing operation, ground and ready to ship to your production floor.

  • Stainless Steel Round Bar

  • Carbon Steel Bar Stock

  • Alloy Steel Bar

  • Tool Steel Bar Stock

  • Aerospace Steel Bar

  • Medical Stainless Steel Bar