DLY PHS8 Female Rod End Bearing
8mm Female Rod End Bearing with M8×1.25 Right-Hand Thread
DLY PHS8 is a female rod end bearing designed for linkage assemblies, hydraulic cylinders, automation equipment and mechanical joints that require flexible angular movement and reliable load support. It has an 8mm bore and M8×1.25 right-hand internal thread, making it suitable for compact connection points where a threaded rod, shaft or linkage needs controlled movement rather than rigid fixation.
The rod end body is made from #45 steel, with a hardened bearing steel spherical joint. The zinc-plated body and chrome-plated spherical surface help improve corrosion resistance and wear performance during regular mechanical operation.
Selection note: PHS8 is selected when the connection requires an 8mm bore and M8×1.25 female thread. For a smaller installation space, PHS6 can be considered. For higher load capacity or a larger threaded connection, PHS10 or larger PHS models may be more suitable.
What Is PHS8 Used For?
PHS8 is used as a mechanical joint between two moving parts. Unlike a rigid connection, a rod end bearing allows a certain angular movement between the connected components. This helps compensate for small alignment changes during motion and reduces stress concentration in linkage systems.
The female thread design allows the bearing body to be connected directly with a male threaded rod or shaft end. This structure is commonly used in push-pull mechanisms, cylinder rod connections, automation linkages, machine tool accessories, agricultural machinery and equipment where compact adjustable connection is required.
Main Product Features
Female Thread Structure for Adjustable Linkage Connection
The PHS8 bearing has an internal M8×1.25 right-hand thread. This makes it suitable for threaded rods, link rods and connection points where the assembly length may need to be adjusted during installation. The female thread also keeps the external shape compact, which is useful in machines with limited installation space.
Spherical Bearing Joint for Flexible Angular Movement
The spherical inner ring allows the connected part to move within a certain angular range. This self-aligning function helps the joint adapt to small mounting deviations and movement changes during machine operation.
#45 Steel Body and Hardened Bearing Steel Ball
The rod end body is made from #45 steel for structural strength, while the spherical joint uses hardened bearing steel for better wear resistance. This material combination is suitable for general mechanical linkage applications requiring durability and stable movement.
Zinc-Plated Body and Chrome-Plated Spherical Surface
The zinc-plated rod end body improves surface protection, while the chrome-plated spherical surface supports smoother motion and better resistance to wear. For humid, dusty or frequently moving equipment, surface protection helps extend the service life of the joint.
PHS8 Product Dimensions
PHS8 is a metric female rod end bearing with 8mm bore diameter and M8×1.25 internal thread. The following dimensions are provided in millimeters for model confirmation, installation space checking and replacement selection.
| Model | d | d3 | B | C1 Max | W | l3 Min | d2 Max | L4 Max | h | l5 Max | d4 Max | dk | d1 | C0 | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PHS8 | 8 | M8×1.25 | 12 | 9 | 14 | 17 | 24 | 48 | 35 | 5 | 12.5 | 15.875 | 10.4 | 11.60 kN | 47g |
How to Confirm Whether PHS8 Is the Correct Model
Before replacing or ordering PHS8, the bore diameter, thread size, thread direction and overall length should be confirmed. These items determine whether the bearing can be assembled correctly with the rod, shaft, cylinder end or linkage part.
| Selection Item | PHS8 Specification | Why It Matters |
|---|---|---|
| Bore diameter | 8mm | Must match the pin, shaft or mounting part passing through the spherical inner ring. |
| Female thread | M8×1.25 | Must match the male threaded rod or cylinder rod end. |
| Thread direction | Right-hand thread | Incorrect thread direction will prevent assembly with the existing linkage. |
| Overall length | L4 Max 48mm | Affects installation space and linkage length. |
| Static load rating | 11.60 kN | Helps confirm whether the bearing is suitable for the expected load condition. |
Typical Applications of PHS8 Female Rod End Bearing
PHS8 is commonly used in medium-small linkage mechanisms where the joint needs to transmit force while allowing angular movement. It is suitable for equipment that needs compact installation, adjustable connection and flexible motion compensation.
| Application Area | How PHS8 Is Used | Product Benefit |
|---|---|---|
| Hydraulic cylinders | Connected to cylinder rods or linkage ends. | Allows angular movement and reduces rigid misalignment. |
| Automation equipment | Used in push-pull rods, small actuators and motion linkage systems. | Supports compact and adjustable mechanical connection. |
| Machine tools | Used in auxiliary mechanisms, clamps, fixtures and control linkages. | Provides reliable movement and load transfer. |
| Engineering machinery | Used in rods, control arms and mechanical joints. | Handles repeated movement and helps compensate for angular deviation. |
| Custom mechanical assemblies | Used where M8 threaded connection and 8mm bore are required. | Easy to integrate into compact linkage designs. |
PHS Series Size Reference
PHS8 belongs to the PHS female rod end bearing series. The same series includes smaller and larger metric sizes for different shaft diameters, thread sizes and load requirements. When the installation condition changes, the model should be selected according to bore diameter, thread size, overall length and weight.
| Type | d (mm) | d3 Thread | L4 Max (mm) | Weight (g) |
|---|---|---|---|---|
| PHS5 | 5 | M5×0.8 | 36 | 16 |
| PHS6 | 6 | M6×1 | 40 | 22 |
| PHS8 | 8 | M8×1.25 | 48 | 47 |
| PHS10 | 10 | M10×1.5 | 56 | 77 |
| PHS12 | 12 | M12×1.75 | 65 | 100 |
| PHS14 | 14 | M14×2 | 74 | 160 |
| PHS16 | 16 | M16×2 | 84 | 220 |
| PHS18 | 18 | M18×1.5 | 93 | 320 |
| PHS20 | 20 | M20×1.5 | 101 | 420 |
| PHS22 | 22 | M22×1.5 | 111 | 540 |
| PHS25 | 25 | M24×2 | 124 | 730 |
| PHS28 | 28 | M27×2 | 136 | 980 |
| PHS30 | 30 | M30×2 | 145 | 1100 |
FAQ
Q: What does PHS8 mean?
A: PHS8 refers to an 8mm female rod end bearing. The model has an 8mm bore and M8×1.25 female thread, commonly used in linkage mechanisms, hydraulic cylinders and automation equipment.
Q: Is PHS8 a male or female rod end bearing?
A: PHS8 is a female rod end bearing. It has an internal thread in the rod end body. If an external male thread structure is required, a male rod end bearing series should be selected instead.
Q: What is the thread size of PHS8?
A: The thread size of PHS8 is M8×1.25. The standard model shown here uses right-hand thread.
Q: What material is used for DLY PHS8?
A: DLY PHS8 uses a #45 steel rod end body and a hardened bearing steel spherical joint. The rod end body is zinc-plated, and the spherical surface of the inner ring is chrome-plated.
Q: Can PHS8 compensate for installation misalignment?
A: Yes. The spherical joint structure allows angular movement, which helps compensate for small alignment changes in linkage systems. However, the bearing should still be installed within the allowed working angle and load range.
Q: What should be checked before ordering PHS8?
A: Before ordering, confirm the bore diameter, thread size, thread direction, quantity, application condition and whether the required structure is female thread or male thread. For replacement use, checking the original part drawing or sample is recommended.
Need PHS8 Female Rod End Bearings?
Send the model, quantity, thread direction and application details. DLY can help confirm PHS8 dimensions, stock availability, packaging and suitable alternatives in the PHS female rod end bearing series.
Email: export@dlybearing.com
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