Nu 216

Updated October 6, 2026

Overview

Product sourcing insights & recommendations

27 来源

The term 'NU 216' refers to a standard single-row cylindrical roller bearing with a bore diameter of 80mm, an outside diameter of 140mm, and a width of 26mm. It is specifically designed to handle high radial loads and high speeds, often used as a "floating" or "free-end" bearing to accommodate axial shaft expansion Tradebearings Qualitybearingsonline.

Market Trends & Industry Insights

* Shift Toward Optimization: There is growing demand for "Explorer" or "EC" designs (e.g., SKF’s ECJ or ECP series), which feature optimized internal geometry and symmetrical rollers to minimize friction and heat, allowing for higher limiting speeds Skf Govolition.

* Material Innovation: High-performance environments are increasingly moving toward machined brass cages (M/ML) instead of pressed steel to improve stability in high-vibration or high-temperature settings Mrosupply Qualitybearingsonline.

* Counterfeit Sensitivity: The market shows a high level of caution regarding authenticity, with a strong preference for suppliers who provide Certificates of Conformity and guarantee 100% genuine products from tier-1 brands like SKF, NSK, and FAG Qualitybearingsonline.

* Rapid Availability: Supply chain trends favor distributors capable of express international shipping (1–3 days), as these bearings are often critical components whose failure causes significant industrial downtime Qualitybearingsonline.

Technical Specifications & Performance

Feature	Standard NU 216 (Generic)	High-Performance (SKF EC Series)
Bore / OD / Width	80 / 140 / 26 mm	80 / 140 / 26 mm
Dynamic Load	~140 kN	Up to 160 kN
Limiting Speed	~4,500 RPM	Up to 8,500 RPM
Typical Cage	Steel or Polyamide	Machined Brass (ML)
Key Advantage	Cost-effective for standard loads	Low noise, high heat resistance

Applications

NU 216 bearings are foundational in heavy industrial gearboxes, electric motors, pumps, and turbines. Their ability to allow the inner and outer rings to be mounted separately makes them a preferred choice for complex machinery maintenance Bearing-Manufacturers Qualitybearingsonline.

Sourcing & Pricing

Wholesale prices typically range from $5.00 to $14.00 per unit for high-quality generic or OEM versions, while premium branded units (SKF/NSK) command significantly higher prices depending on the internal clearance (e.g., C3 or C4) and cage material .

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Sources & References

27 sources cited · Verified industry data & reports

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