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Help Center01EB280MEX Split Bearing 01EB280MGR Bearing
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1. Product Overview
01EB280M belongs to the 01E series of reinforced split single-row cylindrical roller bearings, featuring a fully split structure that allows for disassembly and maintenance without dismantling the equipment shaft. It is suitable for medium to large-sized heavy-duty low-speed industrial shaft systems with an inner diameter of 280mm, and is widely used in harsh working conditions such as heavy industry, energy, building materials, and mining.
II. Basic external dimensions (unit: mm)
Inner diameter d: 280
Outer diameter D: 444.5
Inner ring width: 142
Total bearing width: 190.5
Reference weight: approximately 62.5 kg
III. Model Interpretation
01: Product series, single-row cylindrical roller basic heavy-duty configuration
E: Strengthen and optimize the structure, increase roller specifications, optimize the raceway profile, and enhance load-bearing and fatigue resistance
B: Fully disassembled structure, with the inner ring, outer ring, roller, and cage all being able to be split in half
280: Adapted shaft diameter with a nominal inner diameter of 280 millimeters
M: Metric size standard, with brass solid cage
IV. Core structural advantages
The fully segmented and disassembly-free shaft design eliminates the need to move or disassemble the shaft in narrow spaces or for large equipment, significantly improving maintenance efficiency.
It exhibits outstanding radial load-bearing capacity and supports two installation methods: bidirectional axial positioning at the fixed end and thermal expansion slip compensation at the floating end.
The product is made of high-carbon chromium bearing steel that undergoes overall quenching, making it suitable for high-temperature conditions and capable of enduring temperatures up to 180 degrees Celsius.
The brass cage is resistant to impact, wear, and deformation, making it suitable for use in dusty environments, under alternating loads, and in continuous operation scenarios.
It possesses a certain degree of fault tolerance in installation and alignment, allowing for adaptation to minor deformations and installation deviations of the equipment rack.
V. Load and Limit Speed (Industry Reference Values)
Basic dynamic load rating Cr: approximately 1120 kN
Basic static load rating Cor: approximately 1950 kN
Ultimate speed:
Grease lubrication: 500 r/min
Oil lubrication: 680 r/min
VI. Applicable operating conditions and industries
Metallurgy: roller table for large continuous casting machines, auxiliary rollers for rolling mills
Electric power: Main shafts of large induced draft fans, forced draft fans, and coal mills
Cement: rotary kiln supporting roller, large-scale reduction gear transmission shaft system
Mine: large belt conveyor drums, crushers, and coal machine supporting shafts
Papermaking, sugar refining, and shipbuilding: large press rolls, deck machinery transmission systems
VII. Installation and Model Selection Instructions
Suffix GR: Fixed end configuration, bidirectional axial limit, capable of withstanding bidirectional axial forces
Suffix EX: floating end configuration, allowing axial sliding to compensate for thermal expansion of the shaft
It can be adapted to standard split bearing housings, and domestic products of the same specification can fully replace imported products of the same model.
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