NTN 6905 LLU C3/2AS 25x42x9 Deep-Groove Ball Bearing

Industrial Applications & Integration

The NTN 6905 LLU C3/2AS is a compact yet high-performance deep-groove ball bearing (25 mm bore x 42 mm outer diameter x 9 mm width) engineered for demanding industrial environments. Its dual-side sealing (LLU) and increased internal clearance (C3) make it especially suitable for assemblies where durability, low maintenance and tight space constraints are crucial. Commonly used in bearing housings and bearing unit configurations, this model excels in drives, motors, pumps, gearboxes and other industrial systems requiring reliable rotational components.
Short size combined with proven brand means it fits perfectly into the spare-parts inventory of maintenance teams and OEM supply chains.

Technical Features & Key Benefits

• Standard dimensions: 25 x 42 x 9 mm — simplifies stocking and cross-referencing for B2B buyers.

• Type: Single-row deep-groove ball bearing — designed to handle both radial and moderate axial loads while maintaining low friction and high rotational speed.

• Sealing: LLU — rubber contact seals on both sides help block contamination and retain lubrication, enhancing durability in industrial environments.

• Internal clearance: C3 — increased radial clearance accommodates thermal expansion and axial movement in applications with dynamic loads or high temperatures.

• Brand quality: NTN — globally recognized for precision engineering, high durability and consistent performance under industrial application loads.

• Benefits: high durability, low maintenance, optimized for bearing housings and bearing unit integration, supports reliability and uptime in heavy-duty installations.

Why This Bearing Is Ideal for B2B Procurement

For industrial distributors, OEMs and maintenance departments, the NTN 6905 LLU C3/2AS offers a well-specified, standardized bearing ideal for rapid deployment. Its compact footprint and sealed construction reduce downtime and servicing frequency. In a spare-parts warehouse or a supply-chain programme for bearing housings, this bearing addresses keywords such as “25x42x9 bearing”, “deep-groove 25x42x9”, “NTN 6905 LLU C3/2AS”, aligning with buyer search patterns and making it highly discoverable. Its suitability for bearing units and pro-industrial applications enhances its appeal as a core B2B item.

FAQ

Q1: What does the “LLU C3/2AS” designation mean?
A1: “LLU” indicates dual-side rubber contact seals, “C3” designates increased radial internal clearance, and “2AS” is a suffix used for sealed versions. These features collectively enhance durability and performance in industrial service.

Q2: Can this bearing be installed in a bearing housing or bearing unit?
A2: Yes — the 25x42x9 mm size, sealed construction and brand reliability make it an excellent choice for mounting in bearing housings or as part of pre-assembled bearing units for industrial applications.

Q3: What types of applications use this size bearing?
A3: The 25x42x9 mm dimension is typical for compact drives, motors, pumps, gear­boxes and automation modules where space is limited yet reliability, high durability and low maintenance are required.

Q4: Why is increased clearance C3 beneficial?
A4: The C3 clearance allows additional internal space to accommodate thermal expansion, slight shaft misalignment, or dynamic load shifts — making the bearing more robust in challenging environments.

Q5: Why choose the NTN brand for industrial B2B purchase?
A5: Choosing NTN ensures precision manufacturing, consistent dimensions and strong global availability — all critical for operations seeking minimal downtime, predictable maintenance and secure supply-chain performance.