GQZ RNA6914 Needle Roller Bearing 80×100×54mm Without Inner Ring Double‑Row Heavy Radial Load Bearing

The RNA6914 double‑row needle roller bearing is designed without inner ring. The hardened shaft surface serves directly as raceway for needle rollers. Double‑row needle layout delivers high radial load capacity, compact radial cross‑section. Not suitable for high‑speed operation, fits low‑medium speed compact transmission where shaft can be quenched and ground.

It is widely used in gearboxes, printing machinery and engineering machinery compact shaft assemblies.

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👉 Full technical data and drawings available upon request

• No‑inner‑ring design reduces overall radial dimension, saves installation space
• Double‑row needle rollers realize outstanding heavy radial load‑bearing performance
• Shaft journal must be hardened and precision‑ground to act as inner raceway
• Compact outer‑ring assembly for easy installation into housing bore
• Standard metric dimensions support direct interchange and aftermarket replacement
• Custom design available (sealed version, special grease, OEM laser marking)

👉 Helps reduce maintenance cost and improve machine performance

This needle roller bearing is widely used in:

• Compact industrial gearbox and reducer transmission units
• Printing machinery, textile equipment and material‑handling machinery
• Construction machinery auxiliary transmission and packaging production equipment
• Low‑speed heavy‑load mechanical devices with hardened‑ground shaft journal

👉 Ideal for customers looking for reliable and long‑life bearing solutions

• 25+ years experience in industrial needle roller bearing manufacturing
• Exported to 50+ countries worldwide
• Rich experience in OEM RNA69 series needle roller bearing custom projects
• Strict dimensional tolerance, hardness and rotation performance inspection before shipment
• Fast response within 24 hours
• Stable supply for long‑term cooperation

👉 We focus on quality, reliability, and long‑term partnership

• Raw material hardness inspection
• Precision grinding outer raceway machining
• Heat treatment metallurgy control
• Radial‑clearance testing, needle roller flexibility and rotation smoothness inspection
• Final dimensional & appearance inspection before delivery

👉 Ensuring consistent performance for every bearing

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• Fast quotation within 24 hours
• Technical support from engineers
• Custom needle roller bearing matching solution suggestions
• Competitive factory price

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