Inch Rod EndCMR18M CML18M 18 M18 X 1.5 Carbon Steel Male Rod End (Metric)
CM-M CF-M Product Overview
CMR18M / CML18M is a metric two-piece commercial-industrial rod end with a 18 mm bore (B) and 42.00 mm body housing diameter (D). The 31.75 mm 52100 steel ball is precision ground, heat treated, and hard chrome plated, running in a metal-to-metal race for straightforward commercial service. Body length (AM) is 72 mm, thread shank engagement (CM) is 44 mm, body width (W) is 23 mm, body thickness (T) is 14.75 mm. Approximate weight: 260 g.
Rated at 47,903 N static radial load with ±30° misalignment angle, this M18 X 1.5 threaded male rod end is engineered for heavy-duty industrial machinery, large actuators, and structural linkage assemblies. The carbon steel body with silver zinc plating provides reliable corrosion resistance in commercial and industrial service environments.
Available in right-hand (CMR18M) and left-hand (CML18M) metric thread configurations. PTFE-lined version (add ‘T’ suffix, e.g., CMR18MT) eliminates lubrication requirements for maintenance-free operation. Grease fitting option (add ‘Z’ suffix, non-PTFE versions only) and studded versions (add ‘S’ suffix) also available. Alternate thread pitch variants available — contact SYZ for availability. Yellow zinc plating, chromoly steel, and aluminum body options available on request.
CM-M CF-M Series — Full Size Range
All available sizes in the CM-M CF-M series. Can’t find your size? Contact us for custom dimensions.
| RIGHT HAND PART NO. | LEFT HAND PART NO. | B DIA. +0.065 -0.012 | D DIA. +0.38 -0.38 | W WIDTH +0.12 -0.12 | T WIDTH +0.13 -0.13 | BALL DIA. REF. | AM LENGTH +0.40 -0.40 | N THREAD METRIC MALE | CM LENGTH +1.00 -1.00 | a° MIS. ANGLE REF. | STATIC RADIAL LOAD NEWTONS | APPROX WEIGHT (GRAMS) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CMR3M | CML3M | 3 | 12.50 | 6 | 4.25 | 7.93 | 27 | M3 X 0.5 | 15 | 23 | 1,775 | 7 |
| CMR5M | CML5M | 5 | 16.00 | 8 | 5.75 | 11.10 | 33 | M5 X 0.8 | 20 | 22 | 5,168 | 12 |
| CMR6M | CML6M | 6 | 19.00 | 9 | 6.25 | 12.70 | 36 | M6 X 1.0 | 22 | 23 | 7,296 | 18 |
| CMR8M | CML8M | 8 | 22.25 | 12 | 8.00 | 15.88 | 42 | M8 X 1.25 | 25 | 28 | 13,591 | 31 |
| CMR10M | CML10M | 10 | 27.00 | 14 | 9.50 | 19.05 | 48 | M10 X 1.5 | 29 | 26 | 21,024 | 68 |
| CMR10Mx1.25 | CML10Mx1.25 | 10 | 27.00 | 14 | 9.50 | 19.05 | 48 | M10 X 1.25 | 29 | 26 | 21,024 | 68 |
| CMR12M | CML12M | 12 | 30.00 | 16 | 10.75 | 22.23 | 54 | M12 X 1.75 | 33 | 27 | 25,819 | 78 |
| CMR12Mx1.25 | CML12Mx1.25 | 12 | 30.00 | 16 | 10.75 | 22.23 | 54 | M12 X 1.25 | 33 | 27 | 25,819 | 78 |
| CMR12Mx1.5 | CML12Mx1.5 | 12 | 30.00 | 16 | 10.75 | 22.23 | 54 | M12 X 1.5 | 33 | 27 | 25,819 | 78 |
| CMR14M | CML14M | 14 | 34.75 | 19 | 12.25 | 25.40 | 60 | M14 X 2.0 | 36 | 30 | 35,214 | 118 |
| CMR16M | CML16M | 16 | 38.00 | 21 | 12.75 | 28.58 | 64 | M16 X 2.0 | 40 | 33 | 37,391 | 173 |
| CMR16Mx1.5 | CML16Mx1.5 | 16 | 38.00 | 21 | 12.75 | 28.58 | 66 | M16 X 1.5 | 40 | 33 | 37,391 | 173 |
| CMR18M | CML18M | 18 | 42.00 | 23 | 14.75 | 31.75 | 72 | M18 X 1.5 | 44 | 30 | 47,903 | 260 |
| CMR20M | CML20M | 20 | 46.00 | 25 | 16.25 | 34.93 | 78 | M20 X 1.5 | 47 | 29 | 57,101 | 290 |
| RIGHT HAND PART NO. | LEFT HAND PART NO. | B | D | W | T | BALL | AF | N | CF | a° | STATIC | GRAMS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CFR3M | CFL3M | 3 | 12.50 | 6 | 4.25 | 7.93 | 21 | M3 X 0.5 | 10 | 23 | 5,746 | 10 |
| CFR5M | CFL5M | 5 | 16.00 | 8 | 5.75 | 11.10 | 27 | M5 X 0.8 | 14 | 22 | 8,247 | 18 |
| CFR6M | CFL6M | 6 | 19.00 | 9 | 6.25 | 12.70 | 30 | M6 X 1.0 | 14 | 23 | 11,895 | 25 |
| CFR8M | CFL8M | 8 | 22.25 | 12 | 8.00 | 15.88 | 36 | M8 X 1.25 | 17 | 28 | 15,190 | 40 |
| CFR10M | CFL10M | 10 | 27.00 | 14 | 9.50 | 19.05 | 43 | M10 X 1.5 | 21 | 26 | 22,750 | 80 |
| CFR10Mx1.25 | CFL10Mx1.25 | 10 | 27.00 | 14 | 9.50 | 19.05 | 43 | M10 X 1.25 | 21 | 26 | 22,750 | 80 |
| CFR12M | CFL12M | 12 | 30.00 | 16 | 10.75 | 22.23 | 50 | M12 X 1.75 | 24 | 27 | 25,819 | 95 |
| CFR12Mx1.25 | CFL12Mx1.25 | 12 | 30.00 | 16 | 10.75 | 22.23 | 50 | M12 X 1.25 | 24 | 27 | 25,819 | 95 |
| CFR12Mx1.5 | CFL12Mx1.5 | 12 | 30.00 | 16 | 10.75 | 22.23 | 50 | M12 X 1.5 | 24 | 27 | 25,819 | 95 |
| CFR14M | CFL14M | 14 | 34.75 | 19 | 12.25 | 25.40 | 57 | M14 X 2.0 | 27 | 30 | 35,214 | 160 |
| CFR16M | CFL16M | 16 | 38.00 | 21 | 12.75 | 28.58 | 64 | M16 X 2.0 | 33 | 33 | 37,391 | 215 |
| CFR16Mx1.5 | CFL16Mx1.5 | 16 | 38.00 | 21 | 12.75 | 28.58 | 64 | M16 X 1.5 | 33 | 33 | 37,391 | 215 |
| CFR18M | CFL18M | 18 | 42.00 | 23 | 14.75 | 31.75 | 71 | M18 X 1.5 | 36 | 30 | 47,903 | 300 |
| CFR20M | CFL20M | 20 | 46.00 | 25 | 16.25 | 34.93 | 77 | M20 X 1.5 | 40 | 29 | 57,101 | 350 |
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 CM-M CF-M Rod Ends Are Used
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CM-M CF-M Frequently Asked Questions
What is the difference between CM-M and CF-M rod ends?
CM-M parts are male rod ends with an external metric thread, while CF-M parts are female rod ends with an internally threaded body. Both use the same two-piece commercial-industrial construction concept.
What materials are used in the CM-M-CF-M metric series?
The series uses a 52100 bearing steel ball that is precision ground, heat treated, and hard chrome plated, together with a carbon steel body finished with silver zinc plating. PTFE-lined versions are available as an option.
Can I order PTFE-lined versions in the CM-M-CF-M series?
Yes. PTFE-lined versions are available by adding a T suffix to the part number, for example CMR12MT, when lower-friction self-lubricating performance is needed.
Are grease fittings or studded versions available?
Yes. Non-PTFE versions can be supplied with a grease fitting by adding a Z suffix, and studded versions are also available by adding an S suffix depending on the part number.
Can this series be supplied in alternate thread pitches or other materials?
Yes. Selected alternate metric thread pitches are available by adding the pitch to the suffix, and chromoly steel or aluminum body options can also be supplied for applications with different strength or weight requirements.
Is there an inch equivalent for the CM-M-CF-M metric series?
Yes. The inch counterpart is the CM / CF series. If your design uses imperial hardware, that series is the closest matching family to compare alongside CM-M and CF-M.