Many automation equipment, textile and packaging machinery are equipped with numerous hinge, swing and low-speed rotary mechanisms. Many positions are confined with limited space, making lubrication pipeline layout difficult, and frequent manual greasing leads to high maintenance costs. Conventional rolling bearings have relatively large dimensions and cannot fit compact mounting locations. Ordinary bronze bushes require regular oil supply; insufficient lubrication easily causes dry friction and shaft scuffing. Some working conditions involve intermittent impact loads, and single-material bushes lack sufficient compressive strength and suffer plastic deformation. In dusty outdoor environments, lubricant absorbs contaminants and forms abrasive particles, accelerating wear of shafts and bushes and causing frequent unplanned downtime and lost production efficiency.

Aiming at low-speed sliding hinge applications within limited spaces, Japan NMT continuously optimizes composite self-lubricating bushes. Based on multi-layer structure with steel backing and solid lubricant composite coating, five major optimizations are implemented: precision cutting and forming technology, uniform surface lubricant adhesion, burr-free edge finishing, multiple cylindrical and flange shapes and optimized wear-resistant formulation. Oil-free versions operate maintenance-free relying on solid lubrication film; grooved types allow periodic grease replenishment to improve durability under heavy loads. Thin wall thickness minimizes radial space occupation, suitable for various narrow hinge positions. Capable of resisting intermittent impact loads and restraining dry friction wear, the bushes are widely adopted for low-speed sliding mechanisms in light automation, textile and construction machinery.

Core Product Advantages

1. Self-lubricating maintenance-free design eliminating continuous oil supply systems: Composite solid lubricant forms persistent lubricating film during operation, ideal for equipment without accessible lubrication routes. Eliminates oil pumps and pipelines to simplify overall machine layout.

2. Ultra-thin compact structure for confined installation spaces: Thin wall delivers smaller radial dimension than rolling bearings, achieving effective load capacity within limited housing space and supporting miniaturized lightweight equipment design.

3. Two versions available for maintenance-free and heavy-load demands: Plain cylindrical oil-free types suit light & medium load maintenance-free scenarios; greasable grooved variants build hybrid lubrication system to satisfy long-term operation under continuous impact and medium-heavy loads.

4. Excellent impact resistance and anti-seizure performance: Steel backing provides rigid support to resist deformation under intermittent shocks. Solid lubricant coating prevents direct metal contact and seizure to avoid shaft surface scuffing.

5. Good adaptability for various environments especially dusty conditions: Minimal liquid lubricant requirement reduces contaminant absorption and abrasive wear, delivering stable performance on dry dusty production lines and lowering risk of abnormal component wear.

Application Scenarios

Hinge sliding positions of automation transfer mechanisms and fixtures; swing linkage parts of textile, printing and packaging machinery; hinge bushes for small sanitation and agricultural machinery; low-speed rotating components of office equipment and fitness apparatus; sliding supports for valves and small hydraulic components; hinge mechanisms of logistics conveying equipment and small lifting platforms.

Precision Quality Assurance

NMT composite plain bushes are manufactured strictly according to Japanese standards for multi-layer composite sliding bearings. Stable bonding process between substrate and lubricant layer is maintained. Pre-delivery tests cover reciprocating swing wear test, static compression resistance, dry friction durability simulation and corrosion resistance inspection. Featuring stable dimensional accuracy, firmly bonded lubricant layer and consistent friction characteristics, the bushes fully adapt to low-speed intermittent swing, confined spaces and limited maintenance access conditions.

Product Range

Cylindrical self-lubricating composite bushes, flanged composite bushes; basic oil-free type and greasable grooved type; standard precision wall thickness; abundant standard sizes available, customized inner and outer diameters for automation and light industry equipment supported.

Brand Strength

Japan NMT focuses on R&D and manufacturing of composite sliding support bearings, specializing in core technologies including multi-material composite forming, solid lubricant formulation optimization, precision stamping and friction interface stability control. Continuously upgrading products to solve industry pain points of low-speed swing mechanisms such as confined space, difficult maintenance and risk of dry seizure, NMT addresses drawbacks of traditional bronze bushes requiring frequent lubrication and insufficient wear resistance of ordinary sliding bushes. The brand provides cost-effective compact maintenance-free sliding bearing solutions for global manufacturers of automation, textile, packaging and construction machinery.