NTN 6806 LLU 30x42x7 Fully Contacting Seal BB30
£20.00 Ex. VAT
NTN 6806 LLU 30x42x7 Fully Contacting Seal Genuine Bearing,
26 in stock
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
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Stephen Cottle –
The bearings were posted and delivered very quickly when they came in stock. Indeed I could not find any alternative UK suppliers with stock and the price was very competitive. I very much appreciated the advice on the best bearings for bb30. Thanks
Kerr Glen –
Martyn L. –
Installed in my Cannondale Topstone Carbon. I now have a super smooth crank and no creaking so very pleased. Only slight criticism would be the postage was a bit expensive but very quick so I can put up with that. Many thanks
Jeremy Leake –
Great bearings and delivered quickly
Richard Harrison –
Dave Nagy –
Great bearings and extremely fast service!
David N. –
Great product and fast shipping!
Martin Kells –
Great customer service with Hambini going the extra mile. The bearings are a substantial improvement on the stock bearings which came with the bike.
Klaus –
Fast shipping! Thank you Hambini!
Anonymous –
Anonymous –
Arrived problem free to toronto in three weeks
Colin Black –
Arrived next day bearings as described
Barry Scully –
I love that you are selling gear that is properly engineered and not hyped by marketing. Quality bearings and more importantly, genuine not fakes
James –
Adrian –
Very prompt delivery. Bearings appear to be very smooth.
Gavin N. –
good reliably sourced bearing. Didn’t help getting me to know my hairdresser
Richard Smith –
Bearings arrived quick and can’t fault the quality. Was worried the full contacting seal might feel a bit draggy, but actually on the road don’t notice a difference. Looking forward to having bearings that won’t rust in 7 months like the old FSA ones!
Anonymous –
Matthew –
Have not installed yet.
David J. Mills –
Great Service and products!
Andreas D. –
Roy Rietberg –
No experience yet because i still don’t have the tools to pull the current bearings
Anonymous –
Andy McDonald –
Time will tell but spins well considering that they sealed
Laurenz Bay –
Thanks for the support
David P. –
Love it! Hambini rocks!
ROB L. –
Tony Carmichael –
Hambini personally advised me which bearings I needed and they arrived as ordered. Everything about dealing with Hambini is first class – best advice backed by the best products. He is not the cheapest but he is the best!