Bore 0.7500 / 3/4-16 ThreadJMXR12(T) JMXL12(T) 0.7500 3/4-16 Chromoly Steel Male Rod End
JMX(-T) JFX(-T) Product Overview
JMXR12(T) / JMXL12(T) features a 0.7500″ bore (B) and 1.750″ body diameter (D). Overall body length (AM) is 2.875″, thread engagement (CM) measures 1.750″. Width (W) is 0.875″ and body thickness (T) is 0.687″. Approximate weight: 0.600 lbs.
Rated at 28,081 lb static radial load with ±14° misalignment angle, this male rod end with a 3/4-16 UNF 3A external thread suits maximum-load suspension, truck steering, and extreme-duty industrial assemblies. The 4130 chromoly body is heat treated and silver zinc plated, delivering superior strength-to-weight ratio over standard carbon steel designs.
Available as a standard version (JMXR12 / JMXL12) or PTFE-lined (JMXR12T / JMXL12T) for maintenance-free, lubrication-free operation. Stud option (suffix S) and grease fitting option (suffix Z) available. Body is 4130 chromoly steel, heat treated and silver zinc plated; race is alloy steel for high load capacity.
JMX(-T) JFX(-T) Series — Full Size Range
All available sizes in the JMX(-T) JFX(-T) series. Can’t find your size? Contact us for custom dimensions.
| RIGHT HAND PART NO. | LEFT HAND PART NO. | B DIA. +.0025 -.0005 | D DIA. +.010 -.010 | W WIDTH +.005 -.005 | T WIDTH +.005 -.005 | AM LENGTH +.015 -.015 | N THREAD UNF 3A | CM LENGTH +.062 -.031 | a° MIS. ANGLE REF. | STATIC RADIAL LOAD (LBS) | APPROX WEIGHT (LBS) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| JMXR3(T) | JMXL3(T) | 0.1900 | 0.625 | 0.312 | 0.250 | 1.250 | 10-32 | 0.750 | 13 | 2,851 | 0.030 |
| JMXR3-4(T) | JMXL3-4(T) | 0.1900 | 0.750 | 0.312 | 0.250 | 1.562 | 1/4-28 | 1.000 | 10 | 5,260 | 0.040 |
| JMXR4(T) | JMXL4(T) | 0.2500 | 0.750 | 0.375 | 0.281 | 1.562 | 1/4-28 | 1.000 | 16 | 5,260 | 0.040 |
| JMXR4-5(T) | JMXL4-5(T) | 0.2500 | 0.875 | 0.375 | 0.281 | 1.875 | 5/16-24 | 1.250 | 13 | 8,452 | 0.070 |
| JMXR5(T) | JMXL5(T) | 0.3125 | 0.875 | 0.437 | 0.344 | 1.875 | 5/16-24 | 1.250 | 14 | 7,639 | 0.070 |
| JMXR5-6(T) | JMXL5-6(T) | 0.3125 | 1.000 | 0.437 | 0.344 | 1.938 | 3/8-24 | 1.250 | 12 | 12,978 | 0.110 |
| JMXR6(T) | JMXL6(T) | 0.3750 | 1.000 | 0.500 | 0.406 | 1.938 | 3/8-24 | 1.250 | 12 | 9,544 | 0.110 |
| JMXR6-7(T) | JMXL6-7(T) | 0.3750 | 1.125 | 0.500 | 0.406 | 2.125 | 7/16-20 | 1.375 | 10 | 17,508 | 0.160 |
| JMXR7(T) | JMXL7(T) | 0.4375 | 1.125 | 0.562 | 0.437 | 2.125 | 7/16-20 | 1.375 | 14 | 10,285 | 0.160 |
| JMXR7-8(T) | JMXL7-8(T) | 0.4375 | 1.312 | 0.562 | 0.437 | 2.438 | 1/2-20 | 1.500 | 12 | 23,452 | 0.240 |
| JMXR8(T) | JMXL8(T) | 0.5000 | 1.312 | 0.625 | 0.500 | 2.438 | 1/2-20 | 1.500 | 12 | 16,238 | 0.250 |
| JMXR8H(T) | JMXL8H(T) | 0.5000 | 1.500 | 0.625 | 0.500 | 2.625 | 1/2-20 | 1.625 | 12 | 31,390 | 0.340 |
| JMXR8-10(T) | JMXL8-10(T) | 0.5000 | 1.500 | 0.625 | 0.500 | 2.625 | 5/8-18 | 1.625 | 10 | 31,390 | 0.370 |
| JMXR10(T) | JMXL10(T) | 0.6250 | 1.500 | 0.750 | 0.562 | 2.625 | 5/8-18 | 1.625 | 16 | 17,995 | 0.380 |
| JMXR10H(T) | JMXL10H(T) | 0.6250 | 1.750 | 0.750 | 0.562 | 2.875 | 5/8-18 | 1.750 | 16 | 40,572 | 0.520 |
| JMXR10-12(T) | JMXL10-12(T) | 0.6250 | 1.750 | 0.750 | 0.562 | 2.875 | 3/4-16 | 1.750 | 13 | 40,572 | 0.570 |
| JMXR12(T) | JMXL12(T) | 0.7500 | 1.750 | 0.875 | 0.687 | 2.875 | 3/4-16 | 1.750 | 14 | 28,081 | 0.600 |
| JMXR12H(T) | JMXL12H(T) | 0.7500 | 2.000 | 0.875 | 0.687 | 3.375 | 3/4-16 | 1.875 | 12 | 55,692 | 0.920 |
| JMXR12-14(T) | JMXL12-14(T) | 0.7500 | 2.000 | 0.875 | 0.687 | 3.375 | 7/8-14 | 1.875 | 12 | 55,692 | 0.920 |
| JMXR14(T) | JMXL14(T) | 0.8750 | 2.000 | 0.875 | 0.765 | 3.375 | 7/8-14 | 2.000 | 7 | 45,051 | 0.920 |
| JMXR16(T) | JMXL16(T) | 1.0000 | 2.750 | 1.375 | 1.000 | 4.125 | 1 1/4-12 | 2.125 | 17 | 76,200 | 2.410 |
| JMXR16-1(T) | JMXL16-1(T) | 1.0000 | 2.750 | 1.375 | 1.000 | 4.125 | 1-14 | 2.125 | 17 | 76,200 | 2.130 |
| JMXR16-2(T) | JMXL16-2(T) | 1.0000 | 2.750 | 1.375 | 1.000 | 4.125 | 1-12 | 2.125 | 17 | 76,200 | 2.130 |
| JMXR16H(T) | JMXL16H(T) | 1.0000 | 2.950 | 1.375 | 1.000 | 4.500 | 1 1/4-12 | 2.500 | 17 | 107,182 | 2.736 |
| JMXR20(T) | JMXL20(T) | 1.2500 | 2.950 | 1.375 | 1.000 | 4.500 | 1 1/4-12 | 2.500 | 11 | 107,182 | 2.736 |
| RIGHT HAND PART NO. | LEFT HAND PART NO. | B | D | W | T | AF | N | CF | a° | STATIC | LBS |
|---|---|---|---|---|---|---|---|---|---|---|---|
| JFXR3(T) | JFXL3(T) | 0.1900 | 0.625 | 0.312 | 0.250 | 1.062 | 10-32 | 0.562 | 13 | 3,327 | 0.040 |
| JFXR4(T) | JFXL4(T) | 0.2500 | 0.750 | 0.375 | 0.281 | 1.312 | 1/4-28 | 0.750 | 16 | 6,190 | 0.060 |
| JFXR5(T) | JFXL5(T) | 0.3125 | 0.875 | 0.437 | 0.344 | 1.375 | 5/16-24 | 0.750 | 14 | 7,639 | 0.090 |
| JFXR6(T) | JFXL6(T) | 0.3750 | 1.000 | 0.500 | 0.406 | 1.625 | 3/8-24 | 0.937 | 12 | 9,544 | 0.150 |
| JFXR7(T) | JFXL7(T) | 0.4375 | 1.125 | 0.562 | 0.437 | 1.812 | 7/16-20 | 1.062 | 14 | 10,285 | 0.200 |
| JFXR8(T) | JFXL8(T) | 0.5000 | 1.312 | 0.625 | 0.500 | 2.125 | 1/2-20 | 1.187 | 12 | 15,336 | 0.330 |
| JFXR10(T) | JFXL10(T) | 0.6250 | 1.500 | 0.750 | 0.562 | 2.500 | 5/8-18 | 1.500 | 16 | 17,955 | 0.480 |
| JFXR12(T) | JFXL12(T) | 0.7500 | 1.750 | 0.875 | 0.687 | 2.875 | 3/4-16 | 1.750 | 14 | 28,081 | 0.720 |
| JFXR14(T) | JFXL14(T) | 0.8750 | 2.000 | 0.875 | 0.765 | 3.375 | 7/8-14 | 1.875 | 7 | 45,051 | 1.030 |
| JFXR16(T) | JFXL16(T) | 1.0000 | 2.750 | 1.375 | 1.000 | 4.125 | 1 1/4-12 | 2.125 | 17 | 76,200 | 2.280 |
| JFXR16-1(T) | JFXL16-1(T) | 1.0000 | 2.750 | 1.375 | 1.000 | 4.125 | 1-14 | 2.125 | 17 | 76,200 | 2.580 |
| JFXR16-2(T) | JFXL16-2(T) | 1.0000 | 2.750 | 1.375 | 1.000 | 4.125 | 1-12 | 2.125 | 17 | 76,200 | 2.580 |
| JFXR20(T) | JFXL20(T) | 1.2500 | 2.750 | 1.375 | 1.000 | 4.125 | 1 1/4-12 | 2.125 | 11 | 76,200 | 2.125 |
| JFXR24-1(T) | JFXL24-1(T) | 1.5000 | 3.500 | 1.312 | 1.125 | 5.375 | 1 1/2-12 | 2.625 | 6.5 | 138,800 | 6.500 |
Every Unit Inspected Before Shipment
Raw Material Inspection
Material certifications verified. Composition confirmed by spectrometer before machining begins.
Thread Gauge Inspection
100% go/no-go gauge check on all threaded sections. Zero tolerance on dimensional non-conformance.
Load Capacity Test
Static and dynamic load tests run on representative samples from each production batch.
Dimensional Measurement
CMM verification of critical dimensions — ball diameter, bore, thread pitch, and body length.
Surface Inspection
Visual and tactile inspection for burrs, scratches, surface cracks, and plating defects.
Articulation Test
Misalignment angle and torque measured to confirm liner performance meets specification.
Heat Treatment Verify
Hardness tests confirm proper heat treatment on chromoly steel bodies and bearing balls.
Batch Documentation
Full traceability from raw material heat number to finished part. COC and inspection reports available.
Where JMX(-T) JFX(-T) Rod Ends Are Used
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JMX(-T) JFX(-T) Frequently Asked Questions
What is the difference between JMX and JFX rod ends?
JMX parts are male-thread chromoly rod ends and JFX parts are female-thread chromoly rod ends. Both belong to the same 3-piece precision series and share the same general material direction and performance intent.
What materials are used in the JMX(-T)-JFX(-T) series?
This series uses a 52100 bearing steel ball with hard chrome plating, an alloy steel race with PTFE-lined option and optional zinc plating, and a 4130 chromoly steel body that is heat treated and silver zinc plated.
What does the T suffix mean on JMXR and JFXR part numbers?
The T suffix identifies the PTFE-lined version. For example, JMXR12T refers to the PTFE-lined version of that chromoly rod end size.
Are studded versions available in the JMX(-T)-JFX(-T) series?
Yes. Studded configurations are available by adding S to the suffix, such as JMXR12S, depending on the exact size and build requirement.
Are polished hard chrome finish options available for this series?
Yes. This series is available in polished hard chrome finish as noted in the product specification materials, subject to the exact part and order requirement.
What applications are best suited to the JMX(-T)-JFX(-T) series?
This series is well suited to suspension systems, steering linkages, off-road and racing builds, industrial linkages, and other applications where a stronger 3-piece chromoly rod end with optional PTFE liner is preferred.