NTN 6902 LLU 15x28x7 Fully Contacting Seal

(21 customer reviews)

£14.00 Ex. VAT

NTN 6902 LLU 15x28x7 Fully Contacting Seal Genuine Bearing,

33 in stock

SKU: BRG-NTN-6902-LLU Categories: ,

Description

This is a Genuine NTN deep groove ball bearing

Technical Specifications

  • CN normal clearance
  • Teflon impregnated grease
  • Premium Tier 1 supplier
  • Most sizes are made in Japan, smaller sizes are made in Taiwan

NTN Corporation (Niwa, Tomoe, Nishizono) are one of the oldest bearing manufacturers in the world, with their roots dating back to central Japan in the early 20th century. They have been manufacturing for over 100 years.

Performance details

Bearing Vibration

Measuring vibration is an effective method of ascertaining how well a bearing is manufactured. High-frequency vibration levels, often called spike energy, detect minute microscopic flaws in rolling element bearings. The results below show a typical wheel bearing after 4000km of use. Lower values indicate a superior life and reduced losses from friction losses.

Genuine Bearings, Counterfeits and B Grade

This is a 100% Genuine NTN Bearing. It has been sourced directly from NTN Europe in Annecy, France. It is not B graded, counterfeit or an NTN labelled product from a third party. You can read more about this in the article Counterfeit NTN and SKF Bearings

There have been widespread reports of counterfeit and substandard (B Grade) bearings being sold to unsuspecting customers in the media. Using these items often results in diminished performance, reduced life and sometimes injury to personnel.

Genuine NTN vs Other NTN

The pictures below show two NTN Bearings, the bearing on the left is from Hambini via NTN in France, and the one on the right was purchased from a well-known UK bicycle bearing distributor; they claimed to have sourced their bearings from NTN. From the outside, they both look to be identical, and the packaging that they came in appeared to be identical. Further inspection of the bearings revealed largely similar seals that would be indiscernible to the average consumer. However, upon disassembly, several discrepancies were noted; the most obvious was the 40% higher ball count on the Hambini supplied bearing. Additionally, the Hambini supplied NTN bearing had a riveted metal cage, the distributor's bearing was folded sheet metal. Folded metal cages have considerably poorer load and stiffness ratings. The distributor bearing had failed after only 600km, a root cause investigation was conducted, and the bearings were found to be of dubious quality with an unverifiable supply chain.

Hambini Engineering and Technical Support

Hambini (the individual) is well known for his encyclopedic knowledge of Aerodynamics and tribology (Bearing Engineering) and is a recognized industry expert, he is a Chartered Aerospace Engineer, and his works are often referenced in technical publications and presentations. He has sat on numerous technical committees. On the internet, his training videos on YouTube have been seen over 1 million times. The technical reference documents and publications on the Hambini website alone receive well over 25,000 unique monthly visitors.

The average satisfaction rating from customers is over 97%, one of the highest in the industry. This satisfaction rating has been achieved by providing technically superior products, world-class design and manufacturing engineering, fastidious quality control and unrivalled technical support.

If you have a question, however big or small, you can email support@hambini.com or use the contact form.

Links

Additional information

Inside Diameter (d)

Outside Diameter (D)

Width (b)

Manufacturer

Seal

Bearing Number

21 reviews for NTN 6902 LLU 15x28x7 Fully Contacting Seal

  1. Martin A.

  2. Diego Marocchio

  3. Anonymous

    Shipping was fast. Bearing is of good quality.

  4. Julien Lepage

    Because of Covid-19 my local LBS couldn’t source good bearing for my rear wheel. In Canadian dollar, it cost me 100$ to replace 2 bearing. My local LBS charged me 50 to install them?…. i’m looking to buy a press for next time?. I’m very satisfy with the product and the service.

  5. Nick A.

    Great turnaround – perfect products

  6. Ramon

  7. Car Davis

    Used this bearing to replace the ceramic bearings in my DT Swiss C180 hub. The original bearings only lasted 18,000 km. Having seen Hambini’s review of ceramic bearings, I decided to fit NTN steel ones.

  8. Lee Williams

    very fast delivery, helpful advice.

  9. Ian

    Excellent service form my favorite 5 year old.

  10. Steve Hoskins

    Good service and products, backed by second none engineering knowledge. Bloody entertaining as well 🙂

  11. Julian

  12. Evert Hilhorst

  13. Marvyn Dunne

    Fantastic

  14. Anonymous

  15. Artiom Gertner

    Happy Hambini fan

  16. Gary Williams

    Brilliant as I would have expected. Even refunded my postage as you combined the two packages…not many folks would have done that. Nice touch!

  17. Sean

    Hambini is the best!

  18. Anonymous

    As expected, quality steel bearings, fast delivery at a fair price and trusted NOT to be counterfeit bearings

  19. Mr C.

    Hambini was helpful in answering my questions. Got what I needed and will use again.

  20. Kevin Baldwin

  21. mark n.

    Quality sevice and quality bearings. Many thanks.

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