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RN-0.5x110 BF RN-4x27.8 BF/G2

RN-0.5×110 BF RN-4×27.8 BF/G2

The RN-4×27.8 BF/G2 is a needle roller bearing with a 4mm diameter and 27.8mm length, crafted from high-quality chrome steel. It meets G2 precision standards, ensuring reliable performance in tight spaces.

With flat ends and a hardness of HRC60-65, it withstands heavy loads while maintaining smooth operation. Its roundness of 0.5um and low VDWL of 2um contribute to its precision.

The bearing is interchangeable with INA models, making it a versatile choice for replacements. Ideal for compact applications like gear pumps or automotive transmissions where space is limited.

Compliant with RoHS standards, it’s a durable and eco-friendly option. Its tight tolerances and robust design make it suitable for high-precision machinery.

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Product Parameters

  • Part Number RN-4x27.8 BF/G2
  • Brand TFL
  • Interchangeable INA
  • Roller Diameter 4 mm
  • Roller Length 27.8 mm
  • System of Measurement Metric
  • Roller Bearing Type Needle
  • Material Chrome Steel
  • RoHS Compliant
  • Rating G2
  • Length Tolerance 0 to -0.33 mm
  • Hardness HRC60-65
  • Ends Type Flat
  • Roundness 0.5um
  • VDWL 2um
  • Rsmax Axial 1 mm
  • Rsmax Radial 0.9 mm
  • Rsmin 0.1 mm

Features

How Does RN-4×27.8 BF/G2 Bearing Reduce Friction?

RN-4×27.8 BF/G2 Bearing features chrome steel construction, ensuring high hardness and durability.
The needle roller design minimises contact area, reducing friction for smoother operation.
With a roundness of just 0.5um, it maintains precision even under demanding conditions.
Its flat ends and tight tolerances enhance stability, making it suitable for high-precision applications.

Application

Industrial Uses of RN-4×27.8 BF/G2 Bearing
RN-4×27.8 BF/G2 Bearing is commonly used in industrial gearboxes, where its needle roller design handles high radial loads efficiently. The chrome steel construction ensures durability in demanding environments like conveyor systems.

In automotive applications, RN-4×27.8 BF/G2 Bearing fits well in compact spaces like transmission systems, providing smooth operation under heavy loads. Its metric sizing makes it a versatile choice for various vehicle models.

For automation equipment, RN-4×27.8 BF/G2 Bearing’s precision design supports high-speed operations in robotic arms. The flat ends and tight tolerances ensure reliable performance in repetitive tasks.

Where Is RN-4×27.8 BF/G2 Bearing Used?
RN-4×27.8 BF/G2 Bearing is ideal for medical devices like surgical tools, where its small size and high hardness meet strict hygiene standards. The G2 rating guarantees consistent performance in critical applications.

In consumer electronics, RN-4×27.8 BF/G2 Bearing can be found in printers and small motors, offering quiet and efficient operation. Its chrome steel material resists wear even with frequent use.

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