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Snap Ring Groove Ball Bearings 311NR

Snap Ring Groove Ball Bearings 311NR

The 311NR is a snap ring groove ball bearing with a 55mm bore and 120mm outer diameter, crafted from sturdy chrome steel. It manages radial loads up to 17805 lbf and operates smoothly at speeds up to 6300 RPM.

Its open design and snap ring feature ensure easy installation and secure positioning in housings. The chrome steel cage adds durability, making it suitable for long-term use.

This bearing performs well in temperatures ranging from -30°C to 120°C. It’s interchangeable with SKF models, offering a reliable replacement option.

Ideal for machinery where radial loads and secure mounting are key, such as pumps or conveyors. Weighing 1.5kg, it balances strength and practicality. Compliant with RoHS and REACH standards for safety.

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Product Parameters

  • Part Number 311NR
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.015mm to 0
  • Outer Dia 120 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 29 mm
  • Width Tolerance -0.15mm to 0
  • Outside Diameter Of Snap Ring 129.7 mm
  • Width Of Snap Ring 2.82 mm
  • System of Measurement Metric
  • For Load Direction Radial
  • Construction Single Row
  • Bearing Type Ball
  • Seal Type Open
  • Locating Feature Bearing Outer Ring Snap Ring (fitted)
  • Tolerance Class ABEC 1 | ISO P0
  • Radial Clearance Trade No CN
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Chrome Steel
  • Dynamic Radial Load 17805 lbf
  • Static Radial Load 15062 lbf
  • Temperature Range -30°to 120 °C
  • ROHS Compliant
  • REACH Compliant
  • Max Speed 6300 rpm
  • Weight 1.5 kg
  • Price（$） 30.2
Snap Ring Groove Ball Bearings 311NR dimension drawing
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Features

Why Choose 311NR Bearing for Precision Tasks?

311NR Bearing features a snap ring groove design, ensuring secure mounting and alignment in radial applications.
Its chrome steel construction provides durability and resistance to wear under heavy loads.

With a dynamic radial load capacity of 17805 lbf, 311NR Bearing handles demanding conditions reliably.
The ABEC 1 tolerance class ensures consistent performance for precision tasks.

311NR Bearing operates smoothly at speeds up to 6,300 rpm, balancing efficiency and longevity.
Its open design allows for easy lubrication, reducing maintenance needs.

The temperature range of -30°C to 120°C makes 311NR Bearing suitable for various environments.
Its snap ring feature adds stability, preventing misalignment during operation.

Application

Industrial Uses of 311NR Bearing
The 311NR Bearing is commonly used in industrial machinery where radial load support is needed, such as in conveyor systems and gearboxes. Its snap ring feature ensures secure placement, reducing the risk of misalignment during operation.

Where Is 311NR Bearing Used?
You’ll often find 311NR Bearing in automotive applications like electric motors and transmission systems, thanks to its reliable radial load capacity. The chrome steel construction also makes it durable under high-speed conditions.

Perfect Fit for Automation: 311NR Bearing
In automated production lines, 311NR Bearing works well in robotic arms and assembly machines due to its precise tolerances. The open design allows for easy lubrication, extending its service life.

Light-Duty vs Heavy-Duty: Best Uses for 311NR Bearing
For light-duty tasks like small electric fans, 311NR Bearing offers smooth rotation with minimal maintenance. In heavier applications like industrial pumps, its robust build handles continuous use effectively.

Medical vs Industrial: Where 311NR Bearing Excels
While not typically used in medical devices, 311NR Bearing shines in industrial settings like packaging machines. Its snap ring design simplifies installation, saving time during maintenance.

Q&A

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