SINOTRUK HOWO Truck Wheel Hub Axle Ball Bearing Part Numbers WG9014320257 & NU314ENM Heavy-Duty Tapered Roller Bearing Set

When that familiar hum or grinding starts coming from your HOWO's wheels, it's usually the bearings telling you they've had enough. This bearing set – identified by numbers WG9014320257 or the industry standard NU314ENM – is the genuine article for HOWO truck wheel hubs. I've replaced enough of these to know that using the correct, high-quality bearing makes all the difference between a repair that lasts and one that fails prematurely.

Technical Specifications & Details

• OEM Part Number: WG9014320257

• Standard Bearing Designation: NU314ENM (Equivalent)

• Application: SINOTRUK HOWO series trucks – commonly used in front and rear wheel hub assemblies

• Bearing Type: Tapered roller bearing (usually sold as a set: cone & cup)

• Dimensions (Typical for NU314):

  • Bore Diameter: 70 mm

  • Outer Diameter: 150 mm

  • Width: 35 mm

• Load Rating: High dynamic and static load capacity suitable for heavy-duty truck axles

• Precision Class: EM designation indicates enhanced machining tolerances for precise fit

• Seals/Components Included: Kit often includes inner seal, outer seal, and locking nut (confirm kit contents)

• Material: Chrome steel rings with hardened steel rollers

Compatibility Notes: This bearing is widely used across HOWO models (A7, T7H, T5G, etc.) for wheel end applications. Always verify the specific application against your truck's VIN or service manual, as bearing configurations can vary by axle model and year.