During storage, keep the product in its original packaging. Do not open or damage the internal packaging, as this may allow foreign matter to enter or cause corrosion, resulting in degraded performance.
Warning – Risk of Personal Injury
Failure to follow these warnings may result in serious injury or death.
Do not disassemble the ball screw shaft, ball nut, or any internal components. Disassembly may cause the internal balls or circulation components to unexpectedly fall out or be ejected. This may result in serious personal injury, contamination, loss of functionality, or damage to the circulation components.
Do not remove the ball nut from the ball screw shaft. Removing the nut may cause the balls to fall out or be ejected, creating a potential hazard that may result in serious personal injury or product damage. If disassembly is required, please contact DINGS' for the proper procedure.
Excessive movement of the ball nut (overtravel) may cause ball dropout, damage to circulation components, or indentation of the ball raceway, resulting in poor operation. Continued use under such conditions may lead to premature wear or component failure. Overtravel must be avoided.
If overtravel occurs, immediately stop operation and contact DINGS' for inspection (paid service).
If abnormal noise, vibration, increased resistance, jamming, or irregular motion is observed during operation, stop the system immediately. Continued operation under such conditions may cause sudden failure, loss of control, or unsafe motion, which may lead to serious injury.
If any ball or rolling element falls out of the ball screw, stop using the product immediately. Do not operate the product under this condition. Contact DINGS' for inspection and repair.
Warning – Equipment Damage / Reduced Service Life
Failure to follow these precautions may result in product damage, malfunction, or reduced service life.
The ball screw and ball nut are heavy and precision-machined components. Avoid dropping the product or applying impact loads. Dropping or impact may cause serious personal injury and internal damage that may not be visible externally.
The ball screw can be used in contaminated environments if appropriate protection measures are applied. Install protective covers or equivalent measures to prevent foreign matter or chips from entering the ball screw. For information on improving contamination resistance in your operating environment, please contact the DINGS' sales team.
Check the lubrication condition before use. Insufficient lubrication may cause the ball screw to lose functionality in a short time. Rust-preventive oil is not a lubricant. Before operation, remove the rust-preventive oil with refined kerosene or an equivalent cleaner, then apply lubricant (grease or oil). Under normal operating conditions, inspect the grease every 2–3 months. If the grease becomes contaminated during operation, remove the old grease and apply new grease.
Allowable axial load and rotational speed vary depending on the size, material, accuracy grade, mounting method, and operating conditions of the ball screw. Exceeding the allowable limits may result in abnormal wear, excessive heat generation, or premature failure. It is recommended to consult DINGS' regarding the operating conditions during the design stage.
The maximum operating temperature is typically below 80 °C. Operation above this temperature may result in the following:
For applications requiring operation above 80 °C, please contact a DINGS' sales engineer in advance.
The ball screw is designed to generate axial thrust and cannot withstand radial loads or moment loads. If radial, bending, or moment loads are applied to the ball nut, the load acting on the balls becomes uneven, which may significantly reduce service life.
Eccentricity between the bearing support and the nut housing during installation may also result in eccentric loading. Proper alignment must be ensured during installation.
When repeated forward and reverse motion occurs within a short stroke range, dynamic torque may increase due to ball compression and elastic deformation. This may lead to increased friction, heat generation, and accelerated wear. To mitigate these effects, it is recommended to periodically operate the ball screw over the full stroke range.
To prevent ball nut overtravel or disengagement from the threaded section, O-rings may be installed during transportation or handling.
Be sure to remove the O-rings before operating the product.
