NSK BSN4090 DDUHP2B 40x90x46 mm Angular Contact Ball Bearing

Applications

The NSK BSN4090 DDUHP2B bearing, with dimensions 40 mm (inner diameter) x 90 mm (outer diameter) x 46 mm (width), is a specialist angular contact ball bearing designed for demanding industrial applications. Engineered to handle both radial and axial loads in high-precision or heavy-load systems, this bearing is ideal for integration into bearing housings, bearing units or automated drive assemblies. Typical application areas include spindle drives, high-speed conveyors, gearboxes in heavy industry, machine tool axes, and other installations where reliability, high performance and long service life are critical.

Key Advantages

• High-precision angular contact design: built to meet stringent tolerances (P2/ABEC-9 class) for minimal vibration, optimal alignment and extended lifespan.

• Robust unit construction: width of 46 mm and the angular contact format allow this bearing to sustain combined loads, making it well suited for units where the bearing is part of the machine’s structural assembly.

• Heavy-duty performance: thanks to the HP2B suffix and manufacturer $NSK$ premium rating, the unit delivers exceptional high durability in industrial environments under continuous operation and frequent load reversals.

• Versatile fitment into bearing housings and bearing units: with standard major dimensions (40x90x46 mm), this bearing is compatible with many bearing housing configurations, reducing downtime and simplifying maintenance in B2B supply chains.

• Ideal for industrial applications: from automated lines and manufacturing equipment to heavy-duty gearboxes and extractor fans, this bearing supports uptime and performance in harsh conditions, making it a strategic component in the supply for industry-grade maintenance.

Technical Data

• Type: angular contact ball bearing (single row)

• Dimensions: d = 40 mm, D = 90 mm, B = 46 mm

• Manufacturer: NSK

• Designation: BSN4090 DDUHP2B

• Contact angle: approx. 60° (typical for high axial load capacity)

• Unit weight: ~1.39 kg

• Tolerance class: P2 / ABEC-9

• Ambient temperature range: from -20 °C to +120 °C

• Seal type: Lip seals both sides - suitable for industrial environments

• Typical usage: bearing housings, bearing units, high-precision drives, industrial automation

• Compatible phrases used throughout: “angular contact ball bearing”, “bearing unit”, “bearing housing”, “industrial applications”, “high durability bearing”.

FAQ

Q1: What does the model code BSN4090 DDUHP2B mean?
A1: The code indicates a highly engineered angular contact ball bearing from NSK, designed for combined radial and axial loads. The “DDUHP2B” suffix signals a premium high-precision class, double-direction capability and advanced seals — confirming this is not a standard deep-groove bearing but a specialist bearing for industrial use.

Q2: Can this bearing be used in a standard bearing housing?
A2: Yes. With the major dimensions 40 x 90 x 46 mm, this bearing fits many standard bearing housing or unit configurations. Its angular contact design makes it particularly suitable for assemblies requiring high axial rigidity and long service intervals.

Q3: Is this bearing suitable for heavy-duty industrial use and high speeds?
A3: Yes. The angular contact design and high tolerance class mean this bearing performs reliably in demanding conditions — high speeds, heavy loads, frequent reversals. The width and construction support such applications, making it ideal for industrial automation, gearboxes or OEM machine builds.

Q4: What kind of loads can it handle?
A4: While exact load ratings depend on detailed manufacturer tables and conditions, angular contact ball bearings such as this are designed for both radial and axial loads — making them suitable where combined load scenarios appear (e.g., in spindle bearings, gearboxes, drives). The 60° contact angle typically enhances axial load capacity.

Q5: How quickly can it be supplied for B2B orders?
A5: This component is listed for industrial supply and is available for B2B bulk purchasing. With proper stock management, fast dispatch (24h) is feasible and integration into industrial maintenance programs is advised to minimise downtime.