6903 JRXLLB/5K NTN thin section deep groove ball bearing 17x30x7

Construction and design

The 6903 JRXLLB/5K NTN is a thin section deep groove ball bearing designed for compact applications where space and weight reduction are critical. Its single row design with precision raceways ensures smooth and stable operation.

This model is equipped with LLB seals on both sides, providing effective protection against contamination while maintaining low friction. The optimized internal geometry allows efficient rotation and extended service life.

Industrial applications

The 6903 NTN bearing is widely used in compact mechanical systems such as electric motors, power tools, automation equipment, bicycles, rollers, and precision devices.

Bearings from the 69xx series are particularly suitable for applications where reduced dimensions and lightweight construction are essential without compromising performance.

Technical parameters

Type: thin section deep groove ball bearing
Model: 6903 JRXLLB/5K NTN
Inner diameter: 17 mm
Outer diameter: 30 mm
Width: 7 mm
Sealing: LLB double seals
Load type: radial and moderate axial
Manufacturer: NTN
Application: industrial, automation, precision mechanics

Operational advantages

The 6903 JRXLLB/5K NTN bearing offers excellent performance in compact designs. Its low weight and reduced friction allow high-speed operation and energy efficiency.

LLB seals provide protection while minimizing resistance, ensuring a balance between sealing performance and rotational efficiency. NTN manufacturing quality guarantees durability and consistent operation.

Main description

The 6903 JRXLLB/5K NTN is a thin section deep groove ball bearing designed for compact and high-precision applications, delivering smooth operation and reliable performance.

Within the category of thin section ball bearings, the 6903 model belongs to the 69xx series known for reduced cross-section and lightweight design. The 17x30x7 mm size is widely used in precision systems and compact mechanical assemblies where space efficiency is essential.

Deep groove ball bearings with LLB seals offer a balance between contamination protection and low rolling resistance. The NTN version ensures high quality, long service life, and stable performance under demanding conditions.

In industrial practice, bearings like 6903 JRXLLB/5K NTN are used in automation systems, power tools, and precision equipment where compactness and reliability are critical. As part of the NTN thin bearing cluster, this model serves as an efficient solution for modern engineering applications.

FAQ

What is the 69xx bearing series?
It refers to thin section bearings with compact dimensions.

What does LLB mean?
It indicates low-friction seals on both sides.

Where is 6903 NTN commonly used?
In automation, power tools, and precision devices.

Is it suitable for high-speed operation?
Yes, due to low friction design.

Is this bearing designed for precision applications?
Yes, it is ideal for compact and accurate systems.