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The 311-ZNR is a shielded, single-row ball bearing with a 55mm bore and 120mm outer diameter, measuring 29mm in width. Made from chrome steel, it handles radial loads up to 17805 lbf and operates smoothly at speeds up to 6300 RPM.
Its snap ring groove on the outer ring ensures secure fitting, while the shielded design protects against contaminants. The bearing works in temperatures from -30°C to 120°C, making it versatile for various conditions.
This model is interchangeable with SKF bearings, offering a reliable replacement option. Ideal for machinery requiring secure mounting, such as pumps or electric motors.
Weighing 1.5kg, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.
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How Is 311-ZNR Bearing Engineered for Reliability?
311-ZNR Bearing features a shielded design with chrome steel rings and balls, ensuring durability and resistance to wear.
Its dynamic radial load capacity of 17805 lbf makes it suitable for heavy-duty radial applications.
The snap ring groove on the outer ring provides secure mounting, reducing the risk of misalignment during operation.
With a maximum speed of 6,300 rpm, it maintains stable performance under high-speed conditions.
311-ZNR Bearing operates efficiently in temperatures ranging from -30°C to 120°C, adapting to various industrial environments.
Its ABEC 1 tolerance class ensures consistent precision and smooth operation over time.
Common Applications of 311-ZNR Bearing
311-ZNR Bearing works well in industrial settings, especially for machinery like pumps and gearboxes where radial loads are common. Its shielded design helps keep out dust and debris, extending its lifespan in tough conditions.
You’ll often find 311-ZNR Bearing in automotive applications, such as wheel hubs or transmissions, where its snap ring feature ensures a secure fit. The chrome steel construction offers good durability for everyday use.
In automation systems, 311-ZNR Bearing supports smooth movement in robotic arms or conveyor belts. The ABEC 1 tolerance makes it reliable for consistent performance without needing frequent adjustments.
For household appliances like washing machines, 311-ZNR Bearing handles moderate loads while reducing noise. Its metric sizing makes it easy to replace in most European and Asian models.
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