Factory Direct · Since 2005 · Ships Worldwide

Stainless Steel Rod Ends & Spherical Bearings — Precision Motion Components

Profab Machine manufactures stainless steel rod ends, also called heim joints, and spherical bearings in 304, 316/316L, and 17-4PH, plus custom CNC parts built to your drawings. From rapid prototypes to volume production, we make the parts that keep marine and food-processing equipment moving.

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About Profab Machine

Factory-Direct Stainless Steel Parts Manufacturer

Since 2005, Profab Machine has built corrosion-resistant stainless steel components, led by rod ends and spherical bearings. Our CNC production lines, 5-axis machining, and welding, electropolishing, and passivation services cover the machining, joining, and finishing of your parts, and you deal directly with the factory.

OEMs and equipment builders in automotive, industrial, marine, and medical sectors order from us, from rapid prototypes to volume production. Every order gets in-process and final inspection before it ships. See how we check every order, or read more about us.

ISO 9001 certificateISO/TS 16949 certificateRoHS verification of complianceRoHS test report
Product Range

Stainless Steel Components

Standard parts in stock, custom parts to drawing. All products are available in 304, 316L, and other grades on request.

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Manufacturing Capability

CNC Machining Built Around Your Drawing

10+ CNC production lines, including 5-axis machining centers, turn and mill stainless steel parts from prototype runs to volume orders. Welding, electropolishing, and passivation services finish the job.

  • 10+CNC production lines
  • 5-AxisMachining centers
  • ±0.01 mmStandard-run tolerance
  • M3–M80Thread range, LH / RH
CNC Turning
CNC TurningRod end bodies, shanks, pins, and bushings turned to drawing.
CNC Milling
CNC MillingFlats, slots, and cross holes machined in 3-axis and 5-axis centers.
Drilling
DrillingCross holes and bore features held to your tolerances.
Tapping
TappingMetric and imperial threads, left and right hand.
Grinding
GrindingPrecision ground rod and finished surfaces.
TIG / MIG Welding
TIG / MIG WeldingStructural and sanitary welding services, with post-weld passivation.
Profab Machine CNC workshop
Profab Machine CNC workshop
Profab Machine CNC workshop
Profab Machine CNC workshop
Our CNC workshop

Standard Tolerance Reference

FeatureStandardAchievable
Outer Diameter (turned)H7±0.008 mm
Inner Bore (bored)H7±0.010 mm
Length / Shoulder±0.05 mm±0.02 mm
Thread (metric)6g / 6H5g / 5H
Surface Finish (Ra)Ra 1.6 µmRa 0.4 µm
Flatness (milled face)0.05 mm0.02 mm
Concentricity0.03 mm0.01 mm
Applications

Where Our Components Are Used

Marine and food processing are where we are strongest, and the same parts serve the industries below.

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Material Supply

Raw Stainless Materials

We also supply stainless steel raw materials alongside finished components.

  • Bar Stock

    Round, hex, and flat bar in 303, 304, 316L, and 17-4PH. Cut to length.

  • Tube & Pipe

    Seamless and welded tube, OD 6–200 mm, Schedule 5S to 80S.

  • Plate & Sheet

    2B, BA, and No. 4 finish, thickness 1–50 mm. Material test certificates are available on request.

  • Rod Stock

    Precision ground rod for CNC input material, OD tolerance h6/h8.

Grades We Work With

304

304 / 304L

General-purpose grade with good corrosion resistance in mildly corrosive environments. Our most ordered material.

18/8 Austenitic
316

316 / 316L

Molybdenum-alloyed grade for marine, chemical, and food environments. Standard for anything exposed to saltwater.

Marine Grade · Food Safe
17-4PH

17-4PH

Precipitation-hardened grade. Tensile strength reaches about 1,310 MPa after H900 heat treatment, for high-load linkages.

Precipitation Hardened
2205

Duplex 2205 / 2507

Dual austenitic-ferritic structure with higher strength than 316L and strong resistance to chloride stress corrosion.

Offshore · Chemical

How It Works

01Send Your Request

Send details, a drawing, or a sample part. Photos work too. We confirm the material and finish.

02Respond Within 24 Hours

We work out the best solution for your request and send you a specific quote within 24 hours.

03Production + Delivery

Engineers review each drawing for manufacturability. Parts ship by sea, air, or freight.

Client Feedback

What Buyers Say

“
We source rod ends and clevis for suspension components. Profab's tolerances are tight and the material certs are legit. We verified them with our own XRF gun on the first order. Now on our fourth order and no issues.
MT
Michael TurnerPurchasing Manager · Automotive OEM Supplier, USA
“
We needed to upgrade the material grade on a linkage. Profab reviewed the specs, recommended a better alloy option, and the final parts performed exactly as expected in our environment. They clearly understand materials and industrial applications. Good factory.
IC
Isabella ChenProject Engineer · Food Equipment Manufacturer, Australia
“
Marine hardware for our charter fleet. Everything in 316L, mirror finish where visible. The cleats and turnbuckles have been in saltwater service for two seasons now, with no pitting and no discolouration. Worth the price.
JS
James SullivanFleet Manager · Marine Charter Operator, Australia
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  • tesla
FAQ

Common Questions

Not seeing your question? Email us and we typically reply the same day.

What is your minimum order quantity?

There is no hard minimum. We regularly run prototypes of 100 pieces and full production runs of 10,000+. Pricing tiers at 100, 500, and 1000 pieces. We show all tiers in our quotes so you can see where the economics shift.

What stainless grades can you supply?

We regularly machine 303, 304, 304L, 316, 316L, 17-4PH, 2205 duplex, 2507 super duplex, 410, and 430. If you need a grade not listed, just contact our team.

Can you work from my drawings or CAD files?

Yes. Send DXF, DWG, STEP, IGES, or PDF with dimensions. If you only have a sample part and no drawing, we can reverse-engineer it for an additional fee. We review all drawings for manufacturability before quoting.

When should I use 304 vs 316?

304 is the go-to for indoor and mildly corrosive environments. It is cheaper and machines easily. 316 adds molybdenum, which resists chloride attack, so use it for anything exposed to saltwater, coastal air, food-grade cleaning chemicals, or marine environments. The cost difference is typically 15–25%.

What surface finishes do you offer?

Electropolishing, sandblasting and bead blasting, mirror polishing, powder coating, passivation, brushing (satin finish), and black oxide (on stainless steel alloys that support it).

What payment methods do you accept?

PayPal, bank transfer (T/T), and the Alibaba platform.

Get in touch with

Request a Quote for Your Stainless Steel Parts

Send your drawing, a photo of a sample, or just the part details. We reply within 24 hours with a quote and any manufacturability questions.

  • Quote reply within 24 hours
  • Drawings, samples, or worn parts accepted
  • Prototype runs to volume production
  • You deal directly with the factory

Request a Quote

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