Motion & Linkage

Stainless Steel Rod Ends

Our stainless steel rod ends are precision and durable for harsh environments. With more than 20 years of experience in serving OEM and industrial brand customers, we support customization of size, thread, and models. All stainless steel rod ends are CNC machined, with high strength, corrosion resistance, and smooth rotation performance. Select from greasable rod end and  PTFE- lined rod end in Profab.

rod end assembly
What is Stainless Steel Rod Ends?
A stainless steel rod end (also called a rod-end bearing, heim joint, or spherical rod end) is a mechanical linkage component that contains a spherical bearing housed in a threaded body. One side is threaded (male or female) so it can be mounted into a rod or linkage; the spherical bearing allows angular misalignment and pivoting.

Product Range

Types of Stainless Steel Rod End Bearings

Profab offers multiple models of ss rod ends like XM/XF, CM/CF, JMX/JFX, SATK/SITK. Each model is designed with specific load capacities and thread types to meet diverse application needs.

We provide high-quality stainless steel rod ends and professional solutions to meet the diverse needs of various industries. Whether it’s standard parts or custom-made components, we offer trusted quality, quick response, and reliable delivery for clients worldwide.

XM / XF

DesignLoader Slot
ThreadMale and Female, Left Hand and Right Hand
RacePTFE Liner
Material304 Stainless Housing & 440C Ball (Optional 316 / 17-4PH)
SurfaceCustom Finishing Available

CM / CF

Design2-Piece Construction
ThreadMale and Female, Left Hand and Right Hand
RaceNo Liner
Material304 Stainless Housing & 440C Ball (Optional 316 / 17-4PH)
SurfaceCustom Finishing Available

JMX / JFX

Design3-Piece Construction
ThreadMale and Female, Left Hand and Right Hand
RacePTFE Liner
Material304 Stainless Housing & 440C Ball (Optional 316 / 17-4PH)
SurfaceCustom Finishing Available

SATK / SITK

Design3-Piece Construction
ThreadMale (SATK) and Female (SITK), Left & Right Thread
RacePTFE Liner
Material304/316 Stainless Body & 440C Ball
SurfaceCustom Finishing Available

Material Specification

Choosing the Right Grade

The housing material is what you’re really specifying when you order. The ball is always 440C. Below is a quick reference — wrong grade is the most common reason rod ends fail prematurely in corrosive environments.

304 Stainless

General-purpose grade. Good resistance to humidity, mild chemicals, and food-safe cleaning agents. Use this for indoor machinery, agricultural equipment, and dry-run automation.

Food · Automation · Indoor

316 / 316L

Molybdenum addition gives 316L roughly 3× better chloride resistance than 304. Required for marine applications, salt-spray environments, offshore, and food-grade lines with CIP chemical cleaning.

Marine · Chemical · Pumps

17-4PH

Precipitation-hardened grade. After H900 heat treatment, tensile strength reaches ~1310 MPa — significantly stronger than 316. Used in motorsport, aerospace, and high-cycle fatigue applications where load ratings matter more than cost.

Aerospace · Motorsport · Hi-load

440C Stainless Ball — Standard on All Series

440C is a martensitic stainless with hardness up to HRC 58 after heat treatment. It is the industry standard for rod end balls because it combines adequate corrosion resistance with the hardness needed to withstand Hertzian contact stress in the socket. All Profab rod ends use 440C balls unless specifically requested otherwise.

Rod End Accessories

Build a Complete Rod End System

Build a complete rod end system with precision-machined accessories manufactured to the same quality standards as your rod ends. Every component below is available in matching 304 or 316L stainless. 

Pre-assembled combinations of rod end, jam nut, and selected accessories. You give us the linkage specification. We ship a ready-to-install kit. Every part in the kit shares the same material and batch traceability. No hunting for matching hardware from three different suppliers.

Complete System Compatibility
Stainless Fasteners Assembly
Optimized Joint Performance
Custom Machining Available
rod end kit

Clevis Joints For Rod Ends

The clevis provides a secure pin connection, while the rod end accommodates angular movement and minor misalignment.

High Misalignment Rod End

The ball gets more angular travel before the housing body hits the bracket. Custom thicknesses on request.

Studded Rod Ends

No separate bolt needed. This configuration shortens the overall linkage stack height.

Rod Ends With Jam Nuts

Thread class matches the rod end exactly. No galling from mismatched thread tolerances.

Rod Ends Bungs

Weld chamfer cut before threading. Thread chased after machining so it runs true to the bung axis. Your rod end screws straight in with no angular runout.

Rod End Linkage Adjuster

Hexagonal bar stock with opposing left-hand and right-hand threads at each end. Rotate the hex bar to extend or retract your linkage without disconnecting either end.

Turnbuckle Hex Bar

Standard on steering tie rods and adjustable control linkages. Custom lengths and thread combinations to your drawing.

Uniball Cups

A housing cup that retains a spherical bearing inside your control arm or linkage plate. The cup bore is precision-bored to press-fit the bearing with the correct interference.

Why Material Selection Matters in Rod End Performance

Unlike many mechanical components, rod ends combine moving contact surfaces, exposed threads, and constant articulation within a single assembly. This makes them especially vulnerable to corrosion, contamination, and surface wear over time. In many cases, rod end failures begin not with overload, but with environmental damage that increases friction, restricts movement, and accelerates bearing wear.

Stainless steel addresses these issues at the material level rather than relying on plated or coated surfaces for protection. The naturally formed passive layer on 304 and 316 stainless steel helps resist rust, moisture intrusion, and chemical attack even when the component experiences repeated movement or minor surface abrasion. As a result, stainless steel rod ends often maintain smoother articulation, lower maintenance requirements, and longer service intervals in demanding operating environments.

rod end material comparison

Built for Motion Control Applications Where Reliability Matters

In marine environments, stainless steel performs well against salt spray, humidity, and brackish water. It helps reduce rust, pitting, and seizure in steering linkages, actuators, and other exposed moving parts. Because corrosion resistance is built into the material itself, the protection is not limited to a surface coating that can wear away over time.

In food processing equipment, stainless steel is a strong fit for frequent washdowns, steam cleaning, and chemical sanitation. It helps minimize surface damage where contamination can start and supports cleaner operation in hygiene-sensitive areas. For equipment that must stay dependable under repeated cleaning, stainless steel rod ends offer a more practical long-term solution.

Why Profab

Your Reliable Rod Ends Supplier

01

Precision Tolerances

Meet demanding assembly requirements. All rod joints are manufactured to exacting critical dimensions, tolerances and thread types (left/right, metric/imperial). This ensures seamless, trouble-free integration into your high-performance system.

02

Multiple Stainless Steel Grades

Our stainless steel rod ends are designed for long-term reliable operation in extreme conditions. Premium stainless steel grades are available depending on the environment of your application (high humidity, chemical exposure or salt water.

03

OEM Project Support

Our team provides full-cycle support, from prototyping to mass production to shipping, we optimize every detail to improve performance, simplify manufacturing, and support standard and custom specifications.

Technical Reference

Thread Sizes & Dimensions

rod-end-dimension-drawing
Thread (mm)Bore (mm)Thread (Inch)Bore (Inch)
M5*0.8510-320.1900
M6*1.061/4-280.1900
M8*1.2581/4-280.2500
M10*1.5105/16-240.2500
M10*1.25105/16-240.3125
M12*1.75123/8-240.3125
M12*1.25123/8-240.3750
M12*1.5127/16-200.3750
M14*2.0147/16-200.4375
M14*1.5141/20-200.4375
M16*2.0161/20-200.5000
M16*1.5165/8-180.5000
M18*1.5183/4-160.5000
M20*1.5205/8-180.6250
M22*1.5225/8-1812mm
M24*2.0243/4-160.6250
M30*2.0303/4-160.7500
M36*2.0367/8-140.7500
M42*2.0427/8-140.8750
M48*2.0481 1/4-121.0000
CustomCustom1-141.0000
1-121.0000
1 1/4-121.2500
1 1/2-121.2500
1 1/2-121.5000
1 3/4-121.5000
1 3/4-121.7500
2-122.0000
CustomCustom

FAQ

Common Questions

Not seeing your question? Email us at [email protected] and we typically reply same day.

What stainless steel grades do you offer? Can you provide Material Test Certificate (MTC)?

We routinely provide 304, 316, 316L, and other grades. We can provide Material Test Certificate (MTC) and proof of chemical composition upon request.

Please provide the maximum static/dynamic load, mounting geometry (swing angle), shaft diameter and frequency of use. We will recommend a model or give calibration suggestions based on the load table and fatigue data.

Yes. For applications requiring low friction or low maintenance, we offer variants with polymer bushings or self-lubricating liners to reduce the frequency of lubrication maintenance.

How to Order

From Inquiry to Delivery

1

2

3

4

Send Specs

Series, thread size, grade, hand, safety catch, quantity. DXF or drawing for custom items.

Respond Within 24 Hours

We will work on the best solution base on your request and send you a specific quote within 24 hours.

Production

7–15 days standard. Samples before full production run on new custom parts. QC report before shipment.

Delivery

Sea, air, or express courier. Material certs and inspection report inside every box. Tracking same day.

BLOG

Rod End Knowledge Base

How Are Heim Joints Measured

How Are Rod Ends Measured?

Thread size alone does not define a rod end. Bore diameter, body width, housing OD, shank length, and misalignment angle all matter. Here is how to measure each one and what to do with the numbers.

Read More
Pitting Corrosion in Marine Rod Ends

Pitting Corrosion in Marine Rod Ends

316 stainless rod ends pit in marine service when the geometry, not just the grade, creates the conditions for chloride attack. This guide covers the mechanism, the specific failure sites in a rod end assembly, and the material and surface treatment decisions that prevent it.

Read More
How Shock Loads Damage Rod End

How Shock Loads Damage Rod Ends

A rod end rated for your nominal load can still fail if shock loads are ignored. This article covers the four damage modes, the static rating rule for shock applications, and the design decisions that determine survival.

Read More

Factory Direct

Ready to Source Stainless Parts?

If you already have the drawings, please send email to [email protected] directly for an instant quote.

Profab

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