NTN 6901 LLB 12x24x6 Ultra Low Friction Seal

(11 customer reviews)

£11.67 Ex. VAT

NTN 6901 LLB 12x24x6 Ultra Low Friction Seal Genuine Bearing,

26 in stock

SKU: BRG-NTN-6901-LLB 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

11 reviews for NTN 6901 LLB 12x24x6 Ultra Low Friction Seal

  1. Stirling Trayle

    For some reason, the install was smoother and they seemed to seat better than other bearings I’ve pressed in. Obviously, spins like butter.

  2. Paul H.

  3. Szymon M.

    Rolling so much better than the one with the orange seal!

  4. Barbara C.

  5. Khalid AL muhairi

    Best quality of bearing. I give 5 start

  6. Simon T.

    Fast delivery, good quality bearings, easy to fit – unloaded spin test on the work-stand definitely shows low friction from seals etc. compared the old bearings and they’re virtually silent.

    On the road when loaded they seem to run very smoothly, subjectively at least the bike seems to freewheel a considerable distance.

    Hambini also tried to help me find an odd size bearing for my freehub/drive side rear wheel as well as the standard sizes supplied.

  7. Peter

  8. Devery Andrews

  9. Matthew D.

  10. Michael Conner

  11. Mr Jack Tyson

    HELLOOOOOOOOOOOOOOOO

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