Rotary mechanisms in food processing equipment, textile machinery and automated packaging lines mostly operate at low speeds under reciprocating swing and intermittent rotation. Continuous oil filling is forbidden in many production environments, since grease may contaminate raw materials and finished goods. Under humid and washing conditions, lubricant inside ordinary oil-impregnated bushes easily washes away, leading to dry friction, severe abrasion of shafts and bushes and rising operating noise.

Many assembly positions are too narrow to install external oil supply pipelines. Frequent manual lubrication interrupts production and raises labor maintenance costs. The food industry sets strict standards for corrosion resistance and sanitation. Ordinary metal bearings tend to rust and fail to meet clean production requirements. The market demands self-lubricating plain bearings featuring corrosion resistance and adaptability to clean environments without continuous oil supply.

NMT Self-Lubricating Plain Bearings adopt composite structures with metal base and embedded solid lubricants. The metal substrate guarantees mechanical strength and load capacity, while solid lubricants separate gradually during operation to build a stable lubrication film on contact surfaces, enabling long-term oil-free or low-oil service. The bearings adapt to diverse dry and humid environments and fit low-speed rotation and reciprocating swing movement.

The bearings feature slim and compact design with installation dimensions consistent with conventional bushes, enabling direct replacement of copper bushes and powder metallurgy bushes. Specially treated surfaces deliver excellent rust resistance and allow water cleaning, complying with sanitary standards of food and light industry. Multiple wall thickness options are available for different load conditions. Standard dimensions avoid re-machining of bearing housings during equipment upgrading.

Core Product Advantages

Composite self-lubricating structure forms continuous lubrication film during operation to support long-term maintenance-free service and eliminate regular oil filling;

Suitable for low-speed rotation, reciprocating swing and intermittent operation, restraining dry friction and reducing equipment noise;

Good anti-rust performance under humid conditions, tolerating water cleaning and satisfying sanitary standards for food and packaging industry;

Slim compact structure provides larger inner diameter under fixed outer dimensions for limited installation space;

Stable friction coefficient reduces abrasion between shafts and bushes and extends service life of rotary components;

Complete specifications with standard dimensions for direct replacement of copper bushes and oil-impregnated bearings;

No external lubrication pipelines required, simplifying equipment design and lowering overall manufacturing costs.

Typical Application Scenarios

Shaft supports of automated food processing and baking conveying equipment; oscillating shafts and fabric guiding mechanisms of spinning and weaving machinery; cutting, transferring and positioning modules of packaging production lines; reciprocating sliding pivots for light industrial automation equipment; conveying assemblies of medical devices and small environmental transmission units.

Quality Assurance

NMT Self-Lubricating Plain Bearings adopt high-strength metal substrates with rigorous raw material screening to control hardness and ductility. Substrates are stamped and precision sized to strictly control dimensional tolerance, coaxiality and surface finish. Solid lubricant layers are composited under high pressure to ensure firm adhesion and prevent peeling during operation. Finished products pass reciprocating friction endurance testing, anti-corrosion simulation and load pressure inspection. All nonconforming products are eliminated. NMT continuously supplies oil-free sliding transmission solutions for manufacturers of food machinery, textile and automation equipment.

Product Range

Thin-wall self-lubricating bushes, heavy-duty thick-wall self-lubricating bushes, flanged self-lubricating plain bearings. Selection depends on load, motion mode, humidity and sanitation requirements.

Brand Strength

NMT specializes in R&D and manufacturing of plain bearings. Targeting light industrial equipment including food and textile machinery that prohibits excessive lubricant, operates under humid clean conditions and runs on low-speed swing transmission, NMT optimizes solid lubricant formula and composite forming technology. The brand solves typical pain points such as frequent lubrication demand for copper bushes, lubricant loss of oil-impregnated bushes after washing and rust contamination risks. It helps light industry manufacturers simplify maintenance, cut component failure rates and guarantee stable continuous operation of clean production lines.