Description
Product Overview
The JQDML rocker arm motor arm is a precision‑engineered component designed to integrate seamlessly with reciprocating linear actuators used across a wide range of industrial and scientific equipment. Constructed from a high‑strength steel core combined with an aluminium alloy exterior, the arm delivers exceptional durability while maintaining a lightweight profile that reduces overall system inertia. The motor shaft hole is machined to an exact 8 mm diameter, ensuring a tight, slip‑free connection with standard actuator shafts. Stroke length is fully adjustable between 30 mm and 150 mm, allowing users to fine‑tune motion range to match specific application requirements. Package dimensions of 5.5 × 5.5 × 1.18 inches and a weight of just 6.24 oz make the unit easy to handle, store, and install.
Key specifications include a robust steel‑aluminium alloy construction, an 8 mm motor shaft aperture, and a stroke adjustment range of 30‑150 mm. The product is manufactured by JQDML, a reputable supplier known for delivering high‑quality motion control components. Since its launch on June 1 2024, the rocker arm has earned a strong reputation, reflected in a 4.8‑star rating from six verified customer reviews and a Best Sellers Rank of #62 within the Linear Motion Actuators subcategory. These metrics underscore the product’s reliability and popularity among engineers and technicians seeking dependable linear motion solutions.
![[Product front view showing all components]](https://www.fastquickgo.store/wp-content/uploads/2026/07/57b1522fe68f40448a91c431902e5fbb.jpg)
Usage
Designed for versatility, the JQDML rocker arm motor arm finds application in a multitude of environments where precise linear motion is essential. In automated manufacturing lines, it can be paired with pneumatic or electric linear actuators to drive conveyor belts, robotic arms, and material handling equipment. Its adjustable stroke makes it ideal for custom‑built test rigs, where researchers require exact displacement control for material testing, vibration analysis, or calibration of measurement instruments. The 8 mm shaft compatibility ensures that the arm can be mounted on a broad spectrum of actuator models without the need for additional adapters, simplifying system integration and reducing overall project costs.
Beyond industrial settings, the rocker arm is suitable for laboratory apparatuses, such as optical positioning stages, micro‑fluidic devices, and precision dosing systems. Its compact size allows it to be incorporated into confined spaces, while the steel‑aluminium alloy construction provides resistance to corrosion and wear, extending service life even in harsh chemical or high‑temperature environments. Installation is straightforward: the arm bolts directly to the actuator housing, and the shaft hole accepts the motor shaft with a secure set‑screw, eliminating the need for complex alignment procedures.
Why Choose Us
Choosing the JQDML rocker arm motor arm means selecting a component backed by rigorous quality assurance processes and a commitment to customer satisfaction. Each unit undergoes a multi‑stage inspection that includes dimensional verification, material hardness testing, and functional performance checks to guarantee that the product meets or exceeds industry standards. JQDML’s manufacturing facilities employ CNC machining and precision grinding techniques, ensuring tight tolerances and repeatable results across large production runs.
In addition to product quality, JQDML provides comprehensive technical support throughout the product lifecycle. Customers have access to detailed installation manuals, CAD drawings, and responsive engineering assistance to address any integration challenges. Should any issues arise, the company offers a responsive after‑sales service, including warranty coverage and replacement parts, reinforcing confidence in long‑term reliability. The combination of superior materials, precise engineering, and dedicated support makes the JQDML rocker arm a trusted choice for professionals who demand consistent performance in demanding applications.
Key Features
- Robust steel‑aluminium alloy construction delivers long‑lasting durability and resistance to wear.
- Precise 8 mm motor shaft hole ensures a secure, slip‑free connection with standard actuator shafts.
- Adjustable stroke from 30 mm to 150 mm provides flexibility for a wide range of motion requirements.
- Compact, lightweight design simplifies installation and reduces overall system inertia.
- Dedicated technical support and warranty service give peace of mind for long‑term projects.
FAQ
What actuator sizes are compatible with the 8 mm shaft hole?
The 8 mm shaft hole is compatible with most standard linear actuator shafts that have a nominal diameter of 8 mm. This includes a wide variety of pneumatic, hydraulic, and electric actuators commonly used in industrial automation and laboratory equipment.
How do I adjust the stroke length from 30 mm to 150 mm?
Stroke adjustment is performed by loosening the set‑screw on the arm, sliding the mounting bracket to the desired position, and then retightening the set‑screw to lock the arm in place. Precise markings on the arm indicate the current stroke setting, allowing for quick and accurate adjustments.
Is the rocker arm suitable for high‑temperature environments?
Yes. The steel‑aluminium alloy material is engineered to withstand elevated temperatures typical of many industrial processes. However, for extreme temperature applications exceeding the alloy’s rated limits, it is recommended to consult the manufacturer for specialized material options.
What is the warranty period for this product?
JQDML offers a one‑year limited warranty covering manufacturing defects and material failures under normal operating conditions. Customers can contact the support team for warranty claims and receive replacement parts or a refurbished unit as appropriate.
Can I purchase multiple units for a large‑scale project?
Absolutely. Bulk orders are welcomed, and JQDML can provide volume pricing, expedited shipping, and coordinated delivery to meet the timelines of large‑scale installations. Contact the sales department for a customized quote and lead‑time information.





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