NF2924 Single Row Cylindrical Roller Bearing Single Outer Rib 120x165x27mm Mining Gearbox Equipment

The NF2924 single row cylindrical roller bearing features double ribs on inner ring and single rib on outer ring, standard dimension 120×165×27mm. Its structural design undertakes ultra-heavy radial load and limits unidirectional axial displacement, used as one-way axial positioning bearing. Separable inner ring assembly allows convenient independent installation and disassembly. Optimized crowned rollers reduce edge stress, resist impact and vibration, open design supports regular grease replenishment, widely applied in heavy-duty gearboxes, mining conveyors, metallurgical rolling equipment, large construction machinery and heavy industrial transmission shafts under continuous heavy radial load.

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👉 Full technical dimension drawing and load datasheet available upon request

• NF special rib layout: double inner ribs + single outer rib, realizes reliable one-way axial positioning to limit shaft single-direction movement
• Separable inner ring assembly simplifies installation, maintenance and shaft disassembly without removing whole bearing housing
• Crowned cylindrical rollers evenly distribute contact pressure, excellent anti-shock and anti-fatigue performance under heavy continuous radial load
• Thin-section 2900 series compact width design saves axial installation space for narrow gearbox and transmission structures
• Two cage options: low-cost stamped steel cage for normal temperature; solid machined brass cage for high-speed high-temperature working conditions
• Multiple clearance grades customizable, C3 clearance matches high-temperature heavy-load mining and metallurgical equipment
• Open through structure convenient for on-site periodic grease filling, extend service life for 24-hour uninterrupted heavy production lines

👉 One-way positioning heavy radial load cylindrical roller bearing solution for gearbox, mining and metallurgical heavy industry

This NF2924 single outer rib cylindrical roller bearing is widely matched to:

• Heavy industrial speed reducers, mining crusher gearboxes and conveyor drive shafts
• Metallurgical rolling mill auxiliary transmission assemblies, large cooling fan rotor supports
• Construction road rollers, heavy agricultural harvester power transmission components
• Paper making large drying roller supports, industrial heavy pump rotary positioning parts
• All heavy equipment requiring ultra-high radial load capacity and one-way axial limit positioning

👉 Cost-effective impact-resistant heavy load positioning bearing for mining, metallurgy and gear manufacturing industry

• 25+ years experience in NF series cylindrical roller bearing manufacturing
• Exported to 50+ countries worldwide
• Rich OEM bulk order experience for 2900 series single outer rib heavy positioning roller bearings
• Strict roller surface finish, rib parallelism and heavy load fatigue durability inspection before shipment
• Fast professional technical reply within 24 hours
• Stable mass supply for long-term gearbox and mining machinery factory cooperation

👉 We focus on stable one-way positioning ultra-heavy radial load wear resistance and reliable long‑term partnership

• GCr15 bearing steel raw material composition & hardness inspection
• Ultra-precision grinding for inner/outer raceway and double/single limit ribs
• Standard quenching & tempering heat treatment for uniform surface hardness HRC60–64
• One-way axial positioning limit test, heavy radial compression fatigue test and full dimensional recheck
• Anti-rust oil treatment and shockproof wooden case packaging before delivery

👉 Consistent heavy-load one-way axial positioning stable operation performance guaranteed for every NF2924 bearing

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• Fast factory quotation within 24h
• Professional mining gearbox heavy positioning bearing technical parameter support
• Custom solid brass cage & C3 enlarged clearance solution suggestions
• Competitive bulk wholesale factory price

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