NJ2311-E-XL-M1 Single Row NJ Type Cylindrical Roller Bearing Machined Brass M1 Cage 55x120x43mm Heavy Duty Reducer Equipment

The NJ2311-E-XL-M1 single row cylindrical roller bearing adopts NJ semi-locating structure, optimized E roller profile, XL enhanced load design and M1 solid machined brass cage. It can bear ultra-heavy radial load and limited unidirectional axial thrust load, separable inner and outer ring structure simplifies disassembly and maintenance, widely matched to heavy-duty gearboxes, mining equipment and construction machinery under continuous heavy impact working conditions.

• XL enhanced internal structural design greatly upgrades radial load capacity, adapts to long-term heavy continuous load operation
• E crowned roller profile eliminates edge stress concentration, reduces vibration and prolongs service life under impact load
• M1 integral machined brass cage features high rigidity, anti-deformation and high-temperature resistance, stable at high rotating speed
• NJ semi-locating structure bears large radial load and unidirectional axial force, restricts single-side axial shaft floating
• Separable inner/outer ring split design allows independent installation, inspection and replacement without disassembling whole shaft
• Standard metric ISO interchangeable size, compatible with general heavy machinery housing and shaft assemblies
• Optional variants: polymer E cage version, C3/C4 enlarged clearance, open standard clearance type

This heavy-load brass cage cylindrical roller bearing is widely used in:

• Heavy industrial gear reducers, speed change boxes and main drive transmission assemblies
• Mining conveyors, crusher rotary shafts and large mine transportation equipment
• Construction mixers, road rollers and heavy engineering machinery rotary supporting parts
• Metallurgical rolling auxiliary equipment, large agricultural heavy-duty transmission shafts

• 25+ years experience in heavy load machined brass cage cylindrical roller bearing manufacturing
• Exported to many countries worldwide
• Rich OEM bulk order experience for reducer and mining machinery bearing projects
• Strict full-process load fatigue, cage rigidity and high-speed rotation aging inspection before shipment
• Fast professional engineer technical response within 24 hours
• Stable mass supply for long-term heavy industry and mining equipment factory cooperation

• GCr15 bearing steel raw material composition and hardness inspection
• Precision superfinishing grinding for raceway and crowned cylindrical rollers
• Standard quenching & tempering heat treatment control
• Brass cage rigidity test, radial heavy load fatigue test and full dimensional recheck
• Individual anti-rust oil treatment and independent plastic packaging for each bearing

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Looking for a reliable M1 machined brass cage XL high load NJ type cylindrical roller bearing supplier?

• Fast quotation within 24 hours
• Professional engineer technical support
• Custom clearance grade, polymer cage and high-temperature lubrication solution suggestions
• Competitive factory wholesale price