NTN Gearbox Deep Groove Ball Bearing 6006LLU/5C 30x55x13mm

NTN 6006LLU/5C Deep Groove Ball Bearing – 30x55x13mm

The NTN 6006LLU/5C is a deep groove ball bearing with double rubber seals (LLU suffix), measuring 30x55x13mm. The /5C designation indicates a higher-grade internal specification suited to precision gearbox applications. Manufactured by NTN in Japan to OEM quality, this bearing is designed for transmission and driveline use where reliable, low-friction operation is required.

Specifications:

• Brand: NTN
• Part Number: 6006LLU/5C
• Dimensions: 30 x 55 x 13mm
• Type: Deep groove ball bearing, double rubber sealed
• Country of manufacture: Japan
• Brand Type: OEM

What does LLU mean on an NTN bearing?

LLU denotes double rubber seals on both sides of the bearing. These seals retain grease and exclude contaminants, eliminating the need for external relubrication. This is the standard configuration for gearbox bearings that are pre-greased for life.

What does /5C mean on the NTN 6006?

The /5C suffix is an NTN designation for an internal specification variant — typically indicating a specific ball complement count or cage design that provides reduced noise and vibration, making it suitable for precision transmission applications.

Is this the same bearing as the 6006LLU?

The 6006LLU/5C and the standard 6006LLU share the same outer dimensions, but the /5C variant has an enhanced internal specification. For gearbox applications where the OEM specified /5C, use the /5C variant — do not substitute the standard 6006LLU.

How do I know if this bearing is failing?

Typical symptoms include a whining or rumbling noise from the gearbox area, vibration, unusual heat from the transmission, or metallic debris in the gearbox oil. Inspect and replace failed bearings promptly to avoid further transmission damage.

Do I need to grease this bearing before fitting?

No. The NTN 6006LLU/5C is a sealed, pre-greased bearing and is ready to fit. Do not wash out or repack the grease — doing so will shorten bearing life significantly.

Why Choose Eco Torque?

As specialists in gearbox rebuilds and repairs, Eco Torque takes pride in offering genuine gearbox parts, high-quality aftermarket alternatives and competitive pricing.

Need Help Finding the Right Part?

If you are unsure whether this part is compatible with your vehicle, send us your UK registration number or VIN and we will help you find the correct part.

Reference Number: ET2179