Metallurgical rolling mills, heavy extrusion equipment, large reducers and construction machinery slewing mechanisms sustain continuous huge unidirectional axial loads, accompanied by impact loads under partial working conditions. Ordinary thrust ball bearings adopt point contact load bearing with limited axial capacity and cannot meet ultra-heavy load requirements of heavy equipment. Conventional thrust spherical roller bearings feature oversized structure and fail to fit equipment with limited installation space. The heavy industrial equipment sector urgently demands thrust cylindrical roller bearings with ultra-high axial load capacity and compact dimensions.

Heavy industry operates under harsh environments. Equipment runs continuously for long periods with dust, high temperature and alternating impact loads. Insufficient bearing load capacity easily leads to roller indentation, raceway spalling and premature bearing failure, triggering costly production line shutdowns. Many large transmission equipment only bear axial forces with minor radial loads, requiring bearings focused on axial load performance while maintaining stable rotational precision. Frequent startup and shutdown of heavy extrusion and metallurgical rolling equipment generate strong instantaneous impacts, imposing stringent requirements on roller hardness, toughness and wear resistance. Heavy axial load scenarios require high-performance thrust cylindrical roller bearings to guarantee long-term stable production.

NMT Thrust Cylindrical Roller Bearings consist of shaft washers, housing washers, cylindrical rollers and cages. The line-contact structure of cylindrical rollers withstands tremendous unidirectional axial loads. Axial load capacity greatly exceeds thrust ball bearings under identical overall dimensions. Precisely grouped and matched rollers distribute loads evenly and lower risks of local stress concentration. Cages separate each roller to avoid collision and mutual friction for smooth stable rotation. The bearings adapt to circulating oil lubrication and support continuous low-to-medium speed operation under high-temperature industrial conditions. Featuring compact structure and simple installation, products comply with universal industrial standards for convenient maintenance and replacement of metallurgical and heavy transmission equipment. Ultra-precision grinding on raceways and rollers reduces friction loss, controls temperature rise and extends continuous operating time.

Shaft washers and housing washers are made of high hardenability bearing alloy steel with complete integral heat treatment. Raceway surfaces maintain sufficient hardness while cores retain favorable toughness to resist impact spalling. Cylindrical rollers are manufactured from high-purity bearing steel via multi-stage ultra-precision grinding with unified dimensional accuracy and strictly controlled surface finish on end faces and generatrices. High-strength stamped steel cages feature stable structure to constrain roller positions and resist deformation during operation. All components undergo rigorous dimensional screening. Finished products pass axial load durability simulation tests to eliminate defective units with abnormal noise and excessive clearance and enforce strict factory quality standards.

A complete range of specifications delivers excellent interchangeability. Widely applied in metallurgical rolling equipment, metal extrusion machinery, large heavy-duty gear reducers, mining slewing equipment, large injection molding machine injection units and marine transmission support positions, satisfying heavy axial load support demands of all kinds of heavy machinery.

Core Product Advantages

Line-contact cylindrical roller design with outstanding unidirectional axial load capacity for ultra-heavy axial load working conditions of heavy equipment;

Precisely matched and assembled rollers achieve uniform load distribution, reduce stress concentration and delay raceway fatigue spalling;

Dedicated high-strength cages separate rollers to prevent extrusion and collision between rolling elements for stable operation and lower vibration;

Ultra-precision machined raceways and rollers reduce friction and control temperature rise during continuous high-load operation;

Adaptable to harsh heavy industrial environments with high temperature and heavy dust and deliver excellent impact resistance;

Compact structural design occupies reasonable axial space and fits the layout of large reducers and metallurgical equipment;

Compatible with circulating oil lubrication for favorable cooling performance to support long-term non-stop production;

Standardized overall dimensions with wide universality for convenient renovation and spare parts replacement of heavy industrial equipment.

Typical Application Scenarios

Axial support structures of metallurgical rolling mills; metal hot and cold extrusion forming equipment; large heavy-duty gear reducers; heavy slewing machinery for mining industry; thrust bearing positions of large-tonnage injection molding machines; axial support for marine power transmission; thrust support mechanisms of heavy hydraulic equipment.

Quality Assurance

NMT Thrust Cylindrical Roller Bearings adopt high-quality alloy steel raw materials. Incoming materials complete metallographic testing to strictly control internal impurities. Shaft washers and housing washers go through forging, precision turning, heat treatment and ultra-precision grinding. Precise control is implemented on raceway dimensional accuracy and surface roughness. Cylindrical rollers are grouped strictly by dimension to ensure consistent roller sizes within each bearing set. Edges of high-strength stamped cages are passivated without burrs to prevent scratching roller end faces.

All workpieces pass visual flaw detection and full dimensional inspection to remove cracked and damaged components. Assembled finished products undergo axial load durability tests with continuous monitoring of operating noise and temperature variation. All unqualified products are fully sorted out to guarantee consistent performance of bulk goods and provide stable and reliable support solutions for heavy-load axial transmission equipment.

Product Range

Standard thrust cylindrical roller bearings. Selection depends on axial load capacity, rotating speed and operating temperature.

Brand Strength

NMT focuses on R&D and manufacturing of heavy thrust bearings. Targeting industry pain points of metallurgical, extrusion and heavy reducer equipment including heavy axial loads, impact-induced spalling and temperature rise during long-term operation, NMT continuously optimizes roller machining technology and heat treatment solutions. The bearings effectively reduce failures such as early fatigue damage, abnormal operating noise and insufficient load capacity on heavy equipment, lower shutdown risks of heavy industrial production lines, extend bearing replacement cycles and cut long-term operation and maintenance costs for large industrial machinery.