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When a loose or worn rod end causes slop in your steering linkage, suspension arm, or industrial actuator, the entire mechanism loses accuracy and safety. Engineers, fabricators, and machine builders who need a reliable, low-maintenance pivot point turn to SA series male rod end bearings — a compact, load-rated solution that installs directly onto threaded rods or clevis pins without special tooling.
Each SA rod end bearing features a forged steel outer body with a male threaded shank, available in both right-hand (standard) and left-hand thread configurations, covering bore diameters from 6 mm (0.24 in) to 30 mm (1.18 in). The inner ring houses a chrome steel or stainless-compatible spherical ball that allows angular misalignment of typically ±8°–±12°, accommodating shaft deflection without binding. Thread pitch and shank length scale with bore size per ISO 12240-4 (SA series) standards.
Typical use cases include: CNC machine axis linkages requiring precise rod-end-to-clevis connections; automotive and motorsport suspension tie rods and push-pull control systems; and industrial hydraulic cylinder rod attachments where misalignment compensation is critical for long service life.
Covers bore diameters from 6 mm (0.24 in) to 30 mm (1.18 in) in a single product family, letting you source matched rod ends for light-duty linkages and heavy industrial actuators from one trusted listing.
Both thread orientations are available for every bore size, enabling turnbuckle-style assemblies where opposing threads allow length adjustment without disassembly — essential for steering and tension rod systems.
The outer housing is cold-forged from carbon steel for a dense, consistent grain structure that resists deformation under radial and axial loads — a meaningful advantage over cast alternatives in vibration-heavy environments.
The chrome steel spherical inner ring accommodates angular misalignment of typically ±8°–±12°, preventing binding and reducing stress on connected shafts when alignment is imperfect — common in real-world fabrication.
Zinc-plated or phosphate-treated finish (varies by size) provides baseline corrosion resistance for indoor industrial, automotive, and workshop environments. For outdoor or wet exposure, pair with appropriate grease or select stainless variants.
Manufactured to SA series dimensional standards, ensuring drop-in interchangeability with existing SA rod end hardware from other suppliers — no custom machining required for replacement or upgrade projects.
| Series | SA (Male Thread, Spherical Plain Bearing Rod End) |
|---|---|
| Thread Type | Right-hand (standard metric) / Left-hand (LH) |
| Bore Diameter Range | 6 mm – 30 mm (0.24 in – 1.18 in) |
| Thread Size | See variant options (M6 – M30) |
| Thread Pitch | See variant options (per ISO metric coarse thread standard) |
| Body Material | Forged carbon steel |
| Ball Material | Chrome steel (GCr15) |
| Surface Finish | Zinc-plated / phosphate treated (varies by size) |
| Angular Misalignment | Typically ±8° – ±12° (varies by bore size) |
| Standard | ISO 12240-4 SA Series |
| Lubrication | Pre-lubricated; re-lubrication via grease fitting (sizes M12+) |
| Weight | See variant options |
Match the bore diameter to your connecting pin or shaft diameter. For example, if your clevis pin is 10 mm, select the M10 variant. The thread size (M6, M8, M10, etc.) refers to both the bore and the shank thread diameter in SA series rod ends, so sizing is straightforward. When in doubt, measure your existing rod end's shank thread with a thread gauge or caliper.
Right-hand thread (standard) tightens clockwise and is compatible with all standard metric hardware. Left-hand thread tightens counter-clockwise and is used in turnbuckle assemblies where one end uses RH and the other uses LH thread — rotating the central body then extends or shortens the overall rod length for fine adjustment without removing either end.
The zinc-plated or phosphate finish provides moderate corrosion resistance suitable for dry indoor and sheltered automotive environments. For prolonged outdoor exposure, high humidity, or wash-down conditions, apply a waterproof grease regularly and consider adding a protective boot or seal. For fully corrosive environments, contact us to confirm stainless steel availability.
Dynamic and static load ratings vary by bore size and follow ISO 12240-4 SA series specifications. Larger bore sizes (M20–M30) carry significantly higher radial and axial loads than smaller sizes (M6–M10). For specific load rating data for your chosen size, contact us to confirm — we can provide the technical datasheet for the relevant variant.
Yes. SA series rod ends follow ISO 12240-4 dimensional standards, meaning the shank thread, body width, and bore dimensions are standardized across compliant manufacturers. These are designed as direct replacements for SA series rod ends from other suppliers, making them suitable for maintenance and repair without re-engineering your linkage geometry.
All variants are pre-lubricated at the factory. For sizes M12 and above, a grease fitting (zerk fitting) is typically included, allowing periodic re-lubrication with a standard grease gun — recommended every 50–100 operating hours in high-cycle applications. Smaller sizes (M6–M10) are sealed and maintenance-free under normal operating conditions.
Yes. SA male rod end bearings are widely used in CNC router axis linkages, robotic arm joints, and linear actuator connections where a low-friction, misalignment-tolerant pivot is needed. The spherical ball design absorbs minor angular errors from frame flex or assembly tolerances, reducing binding and extending the service life of connected components.
