How to maintain double-row medical casters to extend their service life?

Maintenance of double-row medical casters needs to be combined with the characteristics of medical scenarios, starting from cleaning, component maintenance, and usage specifications. The specific methods are as follows:

1. Regular cleaning to avoid foreign objects getting stuck
Daily cleaning: Use a soft cloth or brush to clean the dust, hair, and debris on the wheel surface and the gap between the double-row wheels every week (especially gauze fibers and liquid medicine residues that may exist in the hospital environment) to prevent foreign objects from accumulating and hindering rotation. If contaminated with liquid medicine, disinfectant, etc., wipe it with clean water in time to avoid long-term adhesion of corrosive liquids to damage the wheel surface material (such as TPE, PU).
Deep cleaning: Disassemble the caster every month (using the detachability of the movable screw), rinse the wheel axle and bearing parts with a neutral detergent, remove oil and deep dirt, and reassemble after drying to ensure smooth rotation.

2. Maintenance of key components to ensure stable performance
Bearing lubrication: Add special medical-grade lubricants to the bearing parts every 2-3 months (avoid the use of industrial grease to prevent pollution of the medical environment) to reduce metal friction loss. After adding, turn the caster several times to ensure that the lubricant penetrates evenly and improves steering flexibility.
Screw and connector inspection: Regularly check whether the thread of the movable screw is intact and whether the nut is loose. If the thread is worn or the nut is stripped, replace the accessories in time; check whether the connection between the double-row wheel and the bracket is firm, whether there is looseness or deformation, and tighten the screws if necessary to prevent the wheel from shaking and aggravating wear.

3. Standardize use to reduce unnecessary losses
Avoid overloading and impact: Strictly follow the nominal load of the caster (such as 90KG), do not place overweight equipment or items, prevent the screw from bending and the wheel surface from deforming; avoid violent collisions with walls and door frames when pushing equipment to reduce the impact force on the double-row wheel.
Reasonable parking and ground adaptation: When parking for a long time, lock the caster (if it has a locking function) to prevent the natural sliding of the equipment from causing local pressure deformation of the wheel surface; try to use it on a flat ground, avoid gravel and protrusions, and reduce wheel surface wear.

4. Regular inspection and timely replacement of worn parts
Perform a comprehensive performance test every six months: observe whether the wheel surface has cracks or severe wear (such as the tread thickness is less than 1/3 of the original thickness), whether there is abnormal noise or jamming when turning, and whether the screw adjustment is smooth. If problems are found, replace damaged parts (such as wheel surface, bearings, screws) in time to avoid overall damage caused by minor faults and extend the overall service life of the caster.
The above maintenance measures can not only maintain the silent, flexible and stable characteristics of the caster in medical scenarios, but also significantly extend its service life and reduce equipment maintenance costs.