NJ2320 Single Row Cylindrical Roller Bearing Single Outer Rib Separable 100x215x73mm Mining Heavy Reducer Equipment

The NJ2320 single row cylindrical roller bearing is designed with single rib on outer ring, separable inner ring and roller assembly. It bears ultra-heavy radial load and one-way axial positioning load simultaneously. Parallel roller structure brings low friction and stable high-speed operation, widely used in mining reducers, metallurgical transmission shafts, construction machinery gearboxes and large industrial heavy-load rotary assemblies.

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👉 Full technical datasheet and installation drawings available upon request

• Single outer rib realizes reliable one-way axial positioning, saves extra limiting component
• Separable inner and outer ring for easy disassembly, maintenance and on-site replacement
• Multiple parallel crowned rollers distribute load evenly, outstanding heavy radial load capacity
• Optimized roller surface grinding reduces edge stress, lower temperature rise under continuous operation
• Large dimensional series adapts heavy vibration, dusty harsh industrial working environment
• NU floating type, NUP double rib locating type and brass cage versions can be customized

👉 Heavy-duty locating cylindrical roller bearing solution for mining and metallurgy large transmission devices

This NJ series locating cylindrical roller bearing is widely applied in:

• Mining crusher speed reducers, vertical mill main transmission shafts
• Metallurgical rolling line equipment, heavy industrial gearboxes
• Construction machinery, port lifting equipment and large conveyor driving parts
• General heavy rotary equipment needing radial support and unidirectional axial limit

👉 Stable high-load locating bearing for heavy industry transmission machinery

• 25+ years experience in NJ series cylindrical roller bearing manufacturing
• Exported to 50+ countries worldwide
• Rich OEM bulk order experience for large size heavy-duty NJ roller bearings
• Strict roller precision, cage matching and heavy load durability inspection before shipment
• Fast professional technical reply within 24 hours
• Stable mass supply for long-term mining and heavy machinery factory cooperation

👉 We focus on stable heavy-load positioning performance and long‑term partnership

• Raw bearing steel incoming hardness inspection
• Ultra-precision grinding for inner/outer raceway and crowned cylindrical rollers
• Standard quenching & tempering heat treatment for uniform hardness
• Axial positioning load test, clearance grouping and full dimensional recheck
• Anti-rust oil treatment and wooden case packaging before delivery

👉 Consistent heavy radial & unidirectional axial load performance guaranteed for every bearing

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Looking for single outer rib heavy load NJ2320 cylindrical roller bearing supplier?

• Fast factory quotation within 24h
• Professional mining reducer large bearing technical parameter support
• Custom brass cage & C3/C4 enlarged clearance solution suggestions
• Competitive bulk factory wholesale price

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• Q1: What is the difference between NJ and NU cylindrical roller bearings?

  NJ has one outer rib for unidirectional axial positioning; NU has no ribs, only bears radial load without axial limit.

• Q2: Can brass cage NJ2320 be produced for high-temperature working conditions?

  Yes, solid machined brass cage variant is available for low-speed high-temperature heavy-load scenarios.

• Q3: What is your standard production lead time?

  Standard stock models: 10–18 working days
  Custom cage and clearance specifications take 18–25 days